using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Net;
using System.Web;
using System.Security.Cryptography;
using System.Text.RegularExpressions;
using System.Web.Script.Serialization;
using System.Data;
using System.Collections;
using System.Runtime.Serialization.Json;
using System.Configuration;
using System.Reflection;

namespace Ant.Service.Common
{
    /// <summary>
    /// 系统帮助类
    /// </summary>
   public class Utils
    {
        #region 对象转换处理
        /// <summary>
        /// 判断对象是否为Int32类型的数字
        /// </summary>
        /// <param name="Expression"></param>
        /// <returns></returns>
        public static bool IsNumeric(object expression)
        {
            if (expression != null)
                return IsNumeric(expression.ToString());

            return false;

        }

        /// <summary>
        /// 判断对象是否为Int32类型的数字
        /// </summary>
        /// <param name="Expression"></param>
        /// <returns></returns>
        public static bool IsNumeric(string expression)
        {
            if (expression != null)
            {
                string str = expression;
                if (str.Length > 0 && str.Length <= 11 && Regex.IsMatch(str, @"^[-]?[0-9]*[.]?[0-9]*$"))
                {
                    if ((str.Length < 10) || (str.Length == 10 && str[0] == '1') || (str.Length == 11 && str[0] == '-' && str[1] == '1'))
                        return true;
                }
            }
            return false;
        }

        /// <summary>
        /// 是否为Double类型
        /// </summary>
        /// <param name="expression"></param>
        /// <returns></returns>
        public static bool IsDouble(object expression)
        {
            if (expression != null)
                return Regex.IsMatch(expression.ToString(), @"^([0-9])[0-9]*(\.\w*)?$");

            return false;
        }

        /// <summary>
        /// 将字符串转换为数组
        /// </summary>
        /// <param name="str">字符串</param>
        /// <returns>字符串数组</returns>
        public static string[] GetStrArray(string str)
        {
            return str.Split(new char[',']);
        }

        /// <summary>
        /// 将数组转换为字符串
        /// </summary>
        /// <param name="list">List</param>
        /// <param name="speater">分隔符</param>
        /// <returns>String</returns>
        public static string GetArrayStr(List<string> list, string speater)
        {
            StringBuilder sb = new StringBuilder();
            for (int i = 0; i < list.Count; i++)
            {
                if (i == list.Count - 1)
                {
                    sb.Append(list[i]);
                }
                else
                {
                    sb.Append(list[i]);
                    sb.Append(speater);
                }
            }
            return sb.ToString();
        }

        /// <summary>
        /// object型转换为bool型
        /// </summary>
        /// <param name="strValue">要转换的字符串</param>
        /// <param name="defValue">缺省值</param>
        /// <returns>转换后的bool类型结果</returns>
        public static bool StrToBool(object expression, bool defValue)
        {
            if (expression != null)
                return StrToBool(expression, defValue);

            return defValue;
        }

        /// <summary>
        /// string型转换为bool型
        /// </summary>
        /// <param name="strValue">要转换的字符串</param>
        /// <param name="defValue">缺省值</param>
        /// <returns>转换后的bool类型结果</returns>
        public static bool StrToBool(string expression, bool defValue)
        {
            if (expression != null)
            {
                if (string.Compare(expression, "true", true) == 0)
                    return true;
                else if (string.Compare(expression, "false", true) == 0)
                    return false;
            }
            return defValue;
        }

        /// <summary>
        /// 将对象转换为Int32类型
        /// </summary>
        /// <param name="expression">要转换的字符串</param>
        /// <param name="defValue">缺省值</param>
        /// <returns>转换后的int类型结果</returns>
        public static int ObjToInt(object expression, int defValue)
        {
            if (expression != null)
                return StrToInt(expression.ToString(), defValue);

            return defValue;
        }

        /// <summary>
        /// 将字符串转换为Int32类型
        /// </summary>
        /// <param name="expression">要转换的字符串</param>
        /// <param name="defValue">缺省值</param>
        /// <returns>转换后的int类型结果</returns>
        public static int StrToInt(string expression, int defValue)
        {
            if (string.IsNullOrEmpty(expression) || expression.Trim().Length >= 11 || !Regex.IsMatch(expression.Trim(), @"^([-]|[0-9])[0-9]*(\.\w*)?$"))
                return defValue;

            int rv;
            if (Int32.TryParse(expression, out rv))
                return rv;

            return Convert.ToInt32(StrToFloat(expression, defValue));
        }

        /// <summary>
        /// Object型转换为decimal型
        /// </summary>
        /// <param name="strValue">要转换的字符串</param>
        /// <param name="defValue">缺省值</param>
        /// <returns>转换后的decimal类型结果</returns>
        public static decimal ObjToDecimal(object expression, decimal defValue)
        {
            if (expression != null)
                return StrToDecimal(expression.ToString(), defValue);

            return defValue;
        }

        /// <summary>
        /// string型转换为decimal型
        /// </summary>
        /// <param name="strValue">要转换的字符串</param>
        /// <param name="defValue">缺省值</param>
        /// <returns>转换后的decimal类型结果</returns>
        public static decimal StrToDecimal(string expression, decimal defValue)
        {
            if ((expression == null) || (expression.Length > 10))
                return defValue;

            decimal intValue = defValue;
            if (expression != null)
            {
                bool IsDecimal = Regex.IsMatch(expression, @"^([-]|[0-9])[0-9]*(\.\w*)?$");
                if (IsDecimal)
                    decimal.TryParse(expression, out intValue);
            }
            return intValue;
        }

        /// <summary>
        /// Object型转换为float型
        /// </summary>
        /// <param name="strValue">要转换的字符串</param>
        /// <param name="defValue">缺省值</param>
        /// <returns>转换后的int类型结果</returns>
        public static float ObjToFloat(object expression, float defValue)
        {
            if (expression != null)
                return StrToFloat(expression.ToString(), defValue);

            return defValue;
        }

        /// <summary>
        /// string型转换为float型
        /// </summary>
        /// <param name="strValue">要转换的字符串</param>
        /// <param name="defValue">缺省值</param>
        /// <returns>转换后的int类型结果</returns>
        public static float StrToFloat(string expression, float defValue)
        {
            if ((expression == null) || (expression.Length > 10))
                return defValue;

            float intValue = defValue;
            if (expression != null)
            {
                bool IsFloat = Regex.IsMatch(expression, @"^([-]|[0-9])[0-9]*(\.\w*)?$");
                if (IsFloat)
                    float.TryParse(expression, out intValue);
            }
            return intValue;
        }

        /// <summary>
        /// 将对象转换为日期时间类型
        /// </summary>
        /// <param name="str">要转换的字符串</param>
        /// <param name="defValue">缺省值</param>
        /// <returns>转换后的int类型结果</returns>
        public static DateTime StrToDateTime(string str, DateTime defValue)
        {
            if (!string.IsNullOrEmpty(str))
            {
                DateTime dateTime;
                if (DateTime.TryParse(str, out dateTime))
                    return dateTime;
            }
            return defValue;
        }

        /// <summary>
        /// 将对象转换为日期时间类型
        /// </summary>
        /// <param name="str">要转换的字符串</param>
        /// <returns>转换后的int类型结果</returns>
        public static DateTime StrToDateTime(string str)
        {
            return StrToDateTime(str, DateTime.Now);
        }

        /// <summary>
        /// 将对象转换为日期时间类型
        /// </summary>
        /// <param name="obj">要转换的对象</param>
        /// <returns>转换后的int类型结果</returns>
        public static DateTime ObjectToDateTime(object obj)
        {
            return StrToDateTime(obj.ToString());
        }

        /// <summary>
        /// 将对象转换为日期时间类型
        /// </summary>
        /// <param name="obj">要转换的对象</param>
        /// <param name="defValue">缺省值</param>
        /// <returns>转换后的int类型结果</returns>
        public static DateTime ObjectToDateTime(object obj, DateTime defValue)
        {
            return StrToDateTime(obj.ToString(), defValue);
        }

        /// <summary>
        /// 将对象转换为字符串
        /// </summary>
        /// <param name="obj">要转换的对象</param>
        /// <returns>转换后的string类型结果</returns>
        public static string ObjectToStr(object obj)
        {
            if (obj == null)
                return "";
            return obj.ToString().Trim();
        }
        #endregion

        #region 分割字符串
        /// <summary>
        /// 分割字符串
        /// </summary>
        public static string[] SplitString(string strContent, string strSplit)
        {
            if (!string.IsNullOrEmpty(strContent))
            {
                if (strContent.IndexOf(strSplit) < 0)
                    return new string[] { strContent };

                return Regex.Split(strContent, Regex.Escape(strSplit), RegexOptions.IgnoreCase);
            }
            else
                return new string[0] { };
        }

        /// <summary>
        /// 分割字符串
        /// </summary>
        /// <returns></returns>
        public static string[] SplitString(string strContent, string strSplit, int count)
        {
            string[] result = new string[count];
            string[] splited = SplitString(strContent, strSplit);

            for (int i = 0; i < count; i++)
            {
                if (i < splited.Length)
                    result[i] = splited[i];
                else
                    result[i] = string.Empty;
            }

            return result;
        }
        #endregion

        #region 截取字符串
        public static string GetSubString(string p_SrcString, int p_Length, string p_TailString)
        {
            return GetSubString(p_SrcString, 0, p_Length, p_TailString);
        }
        public static string GetSubString(string p_SrcString, int p_StartIndex, int p_Length, string p_TailString)
        {
            string str = p_SrcString;
            byte[] bytes = Encoding.UTF8.GetBytes(p_SrcString);
            foreach (char ch in Encoding.UTF8.GetChars(bytes))
            {
                if (((ch > 'ࠀ') && (ch < '一')) || ((ch > 0xac00) && (ch < 0xd7a3)))
                {
                    if (p_StartIndex >= p_SrcString.Length)
                    {
                        return "";
                    }
                    return p_SrcString.Substring(p_StartIndex, ((p_Length + p_StartIndex) > p_SrcString.Length) ? (p_SrcString.Length - p_StartIndex) : p_Length);
                }
            }
            if (p_Length < 0)
            {
                return str;
            }
            byte[] sourceArray = Encoding.Default.GetBytes(p_SrcString);
            if (sourceArray.Length <= p_StartIndex)
            {
                return str;
            }
            int length = sourceArray.Length;
            if (sourceArray.Length > (p_StartIndex + p_Length))
            {
                length = p_Length + p_StartIndex;
            }
            else
            {
                p_Length = sourceArray.Length - p_StartIndex;
                p_TailString = "";
            }
            int num2 = p_Length;
            int[] numArray = new int[p_Length];
            byte[] destinationArray = null;
            int num3 = 0;
            for (int i = p_StartIndex; i < length; i++)
            {
                if (sourceArray[i] > 0x7f)
                {
                    num3++;
                    if (num3 == 3)
                    {
                        num3 = 1;
                    }
                }
                else
                {
                    num3 = 0;
                }
                numArray[i] = num3;
            }
            if ((sourceArray[length - 1] > 0x7f) && (numArray[p_Length - 1] == 1))
            {
                num2 = p_Length + 1;
            }
            destinationArray = new byte[num2];
            Array.Copy(sourceArray, p_StartIndex, destinationArray, 0, num2);
            return (Encoding.Default.GetString(destinationArray) + p_TailString);
        }
        #endregion

        #region 删除最后结尾的一个逗号
        /// <summary>
        /// 删除最后结尾的一个逗号
        /// </summary>
        public static string DelLastComma(string str)
        {
            return str.Substring(0, str.LastIndexOf(","));
        }
        #endregion

        #region 删除最后结尾的指定字符后的字符
        /// <summary>
        /// 删除最后结尾的指定字符后的字符
        /// </summary>
        public static string DelLastChar(string str, string strchar)
        {
            if (string.IsNullOrEmpty(str))
                return "";
            if (str.LastIndexOf(strchar) >= 0 && str.LastIndexOf(strchar) == str.Length - 1)
            {
                return str.Substring(0, str.LastIndexOf(strchar));
            }
            return str;
        }
        #endregion

        #region 生成指定长度的字符串
        /// <summary>
        /// 生成指定长度的字符串,即生成strLong个str字符串
        /// </summary>
        /// <param name="strLong">生成的长度</param>
        /// <param name="str">以str生成字符串</param>
        /// <returns></returns>
        public static string StringOfChar(int strLong, string str)
        {
            string ReturnStr = "";
            for (int i = 0; i < strLong; i++)
            {
                ReturnStr += str;
            }

            return ReturnStr;
        }
        #endregion

        #region 生成日期随机码
        /// <summary>
        /// 生成日期随机码
        /// </summary>
        /// <returns></returns>
        public static string GetRamCode()
        {
            #region
            return DateTime.Now.ToString("yyyyMMddHHmmssffff");
            #endregion
        }
        #endregion

        #region 生成随机字母或数字
        /// <summary>
        /// 生成随机数字
        /// </summary>
        /// <param name="length">生成长度</param>
        /// <returns></returns>
        public static string Number(int Length)
        {
            return Number(Length, false);
        }

        /// <summary>
        /// 生成随机数字
        /// </summary>
        /// <param name="Length">生成长度</param>
        /// <param name="Sleep">是否要在生成前将当前线程阻止以避免重复</param>
        /// <returns></returns>
        public static string Number(int Length, bool Sleep)
        {
            if (Sleep)
                System.Threading.Thread.Sleep(3);
            string result = "";
            System.Random random = new Random();
            for (int i = 0; i < Length; i++)
            {
                result += random.Next(10).ToString();
            }
            return result;
        }
        /// <summary>
        /// 生成随机字母字符串(数字字母混和)
        /// </summary>
        /// <param name="codeCount">待生成的位数</param>
        public static string GetCheckCode(int codeCount)
        {
            string str = string.Empty;
            int rep = 0;
            long num2 = DateTime.Now.Ticks + rep;
            rep++;
            Random random = new Random(((int)(((ulong)num2) & 0xffffffffL)) | ((int)(num2 >> rep)));
            for (int i = 0; i < codeCount; i++)
            {
                char ch;
                int num = random.Next();
                if ((num % 2) == 0)
                {
                    ch = (char)(0x30 + ((ushort)(num % 10)));
                }
                else
                {
                    ch = (char)(0x41 + ((ushort)(num % 0x1a)));
                }
                str = str + ch.ToString();
            }
            return str;
        }
        /// <summary>
        /// 根据日期和随机码生成订单号
        /// </summary>
        /// <returns></returns>
        public static string GetOrderNumber()
        {
            string num = DateTime.Now.ToString("yyMMddHHmmss");//yyyyMMddHHmmssms
            return num + Number(2).ToString();
        }
        private static int Next(int numSeeds, int length)
        {
            byte[] buffer = new byte[length];
            System.Security.Cryptography.RNGCryptoServiceProvider Gen = new System.Security.Cryptography.RNGCryptoServiceProvider();
            Gen.GetBytes(buffer);
            uint randomResult = 0x0;//这里用uint作为生成的随机数  
            for (int i = 0; i < length; i++)
            {
                randomResult |= ((uint)buffer[i] << ((length - 1 - i) * 8));
            }
            return (int)(randomResult % numSeeds);
        }
        #endregion

        #region 截取字符长度
        /// <summary>
        /// 截取字符长度
        /// </summary>
        /// <param name="inputString">字符</param>
        /// <param name="len">长度</param>
        /// <returns></returns>
        public static string CutString(string inputString, int len)
        {
            if (string.IsNullOrEmpty(inputString))
                return "";
            inputString = DropHTML(inputString);
            ASCIIEncoding ascii = new ASCIIEncoding();
            int tempLen = 0;
            string tempString = "";
            byte[] s = ascii.GetBytes(inputString);
            for (int i = 0; i < s.Length; i++)
            {
                if ((int)s[i] == 63)
                {
                    tempLen += 2;
                }
                else
                {
                    tempLen += 1;
                }

                try
                {
                    tempString += inputString.Substring(i, 1);
                }
                catch
                {
                    break;
                }

                if (tempLen > len)
                    break;
            }
            //如果截过则加上半个省略号 
            byte[] mybyte = System.Text.Encoding.Default.GetBytes(inputString);
            if (mybyte.Length > len)
                tempString += "…";
            return tempString;
        }
        #endregion

        #region 对象<-->JSON 4.0使用
        /// <summary>
        /// 对象转JSON
        /// </summary>
        /// <typeparam name="T">对象实体</typeparam>
        /// <param name="t">内容</param>
        /// <returns>json包</returns>
        public static string ObjetcToJson<T>(T t)
        {
            try
            {
                DataContractJsonSerializer json = new DataContractJsonSerializer(typeof(T));
                string szJson = "";
                using (MemoryStream stream = new MemoryStream())
                {
                    json.WriteObject(stream, t);
                    szJson = Encoding.UTF8.GetString(stream.ToArray());
                }
                return szJson;
            }
            catch { return ""; }
        }

        /// <summary>
        /// Json包转对象
        /// </summary>
        /// <typeparam name="T">对象</typeparam>
        /// <param name="jsonstring">json包</param>
        /// <returns>异常抛null</returns>
        public static object JsonToObject<T>(string jsonstring)
        {
            object result = null;
            try
            {
                DataContractJsonSerializer json = new DataContractJsonSerializer(typeof(T));
                using (MemoryStream stream = new MemoryStream(Encoding.UTF8.GetBytes(jsonstring)))
                {
                    result = json.ReadObject(stream);
                }
                return result;
            }
            catch { return result; }
        }
        #endregion

        #region 对象<-->JSON 2.0 使用litjson插件
        /// <summary>
        /// 对象转JSON  jsonData
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="t"></param>
        /// <returns></returns>
        //public static string ObjetcToJsonData<T>(T t)
        //{
        //    try
        //    {
        //        JsonData json = new JsonData(t);
        //        return json.ToJson();
        //    }
        //    catch
        //    {
        //        return "";
        //    }
        //}

        ///// <summary>
        ///// 对象转JSON jsonMapper
        ///// </summary>
        ///// <typeparam name="T"></typeparam>
        ///// <param name="t"></param>
        ///// <returns></returns>
        //public static string ObjetcToJsonMapper<T>(T t)
        //{
        //    try
        //    {
        //        JsonData json = JsonMapper.ToJson(t);
        //        return json.ToJson();
        //    }
        //    catch
        //    {
        //        return "";
        //    }
        //}

        ///// <summary>
        ///// json转对象 jsonMapper
        ///// </summary>
        ///// <param name="jsons"></param>
        ///// <returns></returns>
        //public static object JsonToObject(string jsons)
        //{
        //    try
        //    {
        //        JsonData jsonObject = JsonMapper.ToObject(jsons);
        //        return jsonObject;
        //    }
        //    catch { return null; }
        //}

        #endregion

        #region DataTable<-->JSON
        /// <summary> 
        /// DataTable转为json 
        /// </summary> 
        /// <param name="dt">DataTable</param> 
        /// <returns>json数据</returns> 
        public static string DataTableToJson(DataTable dt)
        {
            List<Dictionary<string, object>> list = new List<Dictionary<string, object>>();
            foreach (DataRow dr in dt.Rows)
            {
                Dictionary<string, object> result = new Dictionary<string, object>();
                foreach (DataColumn dc in dt.Columns)
                {
                    result.Add(dc.ColumnName, dr[dc]);
                }
                list.Add(result);
            }

            return SerializeToJson(list);
        }
        /// <summary>
        /// 序列化对象为Json字符串
        /// </summary>
        /// <param name="obj">要序列化的对象</param>
        /// <param name="recursionLimit">序列化对象的深度，默认为100</param>
        /// <returns>Json字符串</returns>
        public static string SerializeToJson(object obj, int recursionLimit = 100)
        {
            try
            {
                JavaScriptSerializer serialize = new JavaScriptSerializer();
                serialize.RecursionLimit = recursionLimit;
                return serialize.Serialize(obj);
            }
            catch { return ""; }
        }
        /// <summary>
        /// json包转DataTable
        /// </summary>
        /// <param name="jsons"></param>
        /// <returns></returns>
        public static DataTable JsonToDataTable(string jsons)
        {
            DataTable dt = new DataTable();
            try
            {
                JavaScriptSerializer serialize = new JavaScriptSerializer();
                serialize.MaxJsonLength = Int32.MaxValue;
                ArrayList list = serialize.Deserialize<ArrayList>(jsons);
                if (list.Count > 0)
                {
                    foreach (Dictionary<string, object> item in list)
                    {
                        if (item.Keys.Count == 0)//无值返回空
                        {
                            return dt;
                        }
                        if (dt.Columns.Count == 0)//初始Columns
                        {
                            foreach (string current in item.Keys)
                            {
                                dt.Columns.Add(current, item[current].GetType());
                            }
                        }
                        DataRow dr = dt.NewRow();
                        foreach (string current in item.Keys)
                        {
                            dr[current] = item[current];
                        }
                        dt.Rows.Add(dr);
                    }
                }
            }
            catch
            {
                return dt;
            }
            return dt;
        }
        #endregion

        #region List<--->DataTable
        /// <summary>
        /// DataTable转换泛型集合
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="table"></param>
        /// <returns></returns>
        public static List<T> DataTableToList<T>(DataTable table)
        {
            List<T> list = new List<T>();
            T t = default(T);
            PropertyInfo[] propertypes = null;
            string tempName = string.Empty;
            foreach (DataRow row in table.Rows)
            {
                t = Activator.CreateInstance<T>();
                propertypes = t.GetType().GetProperties();
                foreach (PropertyInfo pro in propertypes)
                {
                    tempName = pro.Name;
                    if (table.Columns.Contains(tempName))
                    {
                        object value = row[tempName];
                        if (!value.ToString().Equals(""))
                        {
                            pro.SetValue(t, value, null);
                        }
                    }
                }
                list.Add(t);
            }
            return list.Count == 0 ? null : list;
        }

        /// <summary>
        /// 将集合类转换成DataTable
        /// </summary>
        /// <param name="list">集合</param>
        /// <returns>DataTable</returns>
        public static DataTable ListToDataTable(IList list)
        {
            DataTable result = new DataTable();
            if (list != null && list.Count > 0)
            {
                PropertyInfo[] propertys = list[0].GetType().GetProperties();
                foreach (PropertyInfo pi in propertys)
                {
                    result.Columns.Add(pi.Name, pi.PropertyType);
                }
                for (int i = 0; i < list.Count; i++)
                {
                    ArrayList tempList = new ArrayList();
                    foreach (PropertyInfo pi in propertys)
                    {
                        object obj = pi.GetValue(list[i], null);
                        tempList.Add(obj);
                    }
                    object[] array = tempList.ToArray();
                    result.LoadDataRow(array, true);
                }
            }
            return result;
        }
		 public static List<T> ConvertTo<T>(DataTable dt) where T : new()
        {
            if (dt == null) return null;
            if (dt.Rows.Count <= 0) return null;
 
            List<T> list = new List<T>();
            try
            {
                List<string> columnsName = new List<string>();  
                foreach (DataColumn dataColumn in dt.Columns)
                {
                    columnsName.Add(dataColumn.ColumnName);//得到所有的表头
                }
                list = dt.AsEnumerable().ToList().ConvertAll<T>(row => GetObject<T>(row, columnsName));  //转换
                return list;
            }
            catch 
            {
                return null;
            }
        }
 
        public static T GetObject<T>(DataRow row, List<string> columnsName) where T : new()
        {
            T obj = new T();
            try
            {
                string columnname = "";
                string value = "";
                PropertyInfo[] Properties = typeof(T).GetProperties();
                foreach (PropertyInfo objProperty in Properties)  //遍历T的属性
                {
                    columnname = columnsName.Find(name => name.ToLower() == objProperty.Name.ToLower()); //寻找可以匹配的表头名称
                    if (!string.IsNullOrEmpty(columnname))
                    {
                        value = row[columnname].ToString();
                        if (!string.IsNullOrEmpty(value))
                        {
                            if (Nullable.GetUnderlyingType(objProperty.PropertyType) != null) //存在匹配的表头
                            {
                                value = row[columnname].ToString().Replace("$", "").Replace(",", ""); //从dataRow中提取数据
                                objProperty.SetValue(obj, Convert.ChangeType(value, Type.GetType(Nullable.GetUnderlyingType(objProperty.PropertyType).ToString())), null); //赋值操作
                            }
                            else
                            {
                                value = row[columnname].ToString().Replace("%", ""); //存在匹配的表头
                                objProperty.SetValue(obj, Convert.ChangeType(value, Type.GetType(objProperty.PropertyType.ToString())), null);//赋值操作
                            }
                        }
                    }
                }
                return obj;
            }
            catch
            {
                return obj;
            }
        }
        /// <summary>
        /// 将泛型集合类转换成DataTable
        /// </summary>
        /// <typeparam name="T">集合项类型</typeparam>
        /// <param name="list">集合</param>
        /// <param name="propertyName">需要返回的列的列名</param>
        /// <returns>数据集(表)</returns>
        public static DataTable ListToDataTable<T>(IList<T> list, params string[] propertyName)
        {
            List<string> propertyNameList = new List<string>();
            if (propertyName != null)
                propertyNameList.AddRange(propertyName);
            DataTable result = new DataTable();
            if (list != null && list.Count > 0)
            {
                PropertyInfo[] propertys = list[0].GetType().GetProperties();
                foreach (PropertyInfo pi in propertys)
                {
                    if (propertyNameList.Count == 0)
                    {
                        result.Columns.Add(pi.Name, pi.PropertyType);
                    }
                    else
                    {
                        if (propertyNameList.Contains(pi.Name))
                            result.Columns.Add(pi.Name, pi.PropertyType);
                    }
                }
                for (int i = 0; i < list.Count; i++)
                {
                    ArrayList tempList = new ArrayList();
                    foreach (PropertyInfo pi in propertys)
                    {
                        if (propertyNameList.Count == 0)
                        {
                            object obj = pi.GetValue(list[i], null);
                            tempList.Add(obj);
                        }
                        else
                        {
                            if (propertyNameList.Contains(pi.Name))
                            {
                                object obj = pi.GetValue(list[i], null);
                                tempList.Add(obj);
                            }
                        }
                    }
                    object[] array = tempList.ToArray();
                    result.LoadDataRow(array, true);
                }
            }
            return result;
        }

        #endregion

        #region 清除HTML标记
        public static string DropHTML(string Htmlstring)
        {
            if (string.IsNullOrEmpty(Htmlstring)) return "";
            //删除脚本  
            Htmlstring = Regex.Replace(Htmlstring, @"<script[^>]*?>.*?</script>", "", RegexOptions.IgnoreCase);
            //删除HTML  
            Htmlstring = Regex.Replace(Htmlstring, @"<(.[^>]*)>", "", RegexOptions.IgnoreCase);
            Htmlstring = Regex.Replace(Htmlstring, @"([\r\n])[\s]+", "", RegexOptions.IgnoreCase);
            Htmlstring = Regex.Replace(Htmlstring, @"-->", "", RegexOptions.IgnoreCase);
            Htmlstring = Regex.Replace(Htmlstring, @"<!--.*", "", RegexOptions.IgnoreCase);
            Htmlstring = Regex.Replace(Htmlstring, @"&(quot|#34);", "\"", RegexOptions.IgnoreCase);
            Htmlstring = Regex.Replace(Htmlstring, @"&(amp|#38);", "&", RegexOptions.IgnoreCase);
            Htmlstring = Regex.Replace(Htmlstring, @"&(lt|#60);", "<", RegexOptions.IgnoreCase);
            Htmlstring = Regex.Replace(Htmlstring, @"&(gt|#62);", ">", RegexOptions.IgnoreCase);
            Htmlstring = Regex.Replace(Htmlstring, @"&(nbsp|#160);", " ", RegexOptions.IgnoreCase);
            Htmlstring = Regex.Replace(Htmlstring, @"&(iexcl|#161);", "\xa1", RegexOptions.IgnoreCase);
            Htmlstring = Regex.Replace(Htmlstring, @"&(cent|#162);", "\xa2", RegexOptions.IgnoreCase);
            Htmlstring = Regex.Replace(Htmlstring, @"&(pound|#163);", "\xa3", RegexOptions.IgnoreCase);
            Htmlstring = Regex.Replace(Htmlstring, @"&(copy|#169);", "\xa9", RegexOptions.IgnoreCase);

            Htmlstring = Regex.Replace(Htmlstring, @"&#(\d+);", "", RegexOptions.IgnoreCase);
            Htmlstring.Replace("<", "");
            Htmlstring.Replace(">", "");
            Htmlstring.Replace("\r\n", "");
            Htmlstring = HttpContext.Current.Server.HtmlEncode(Htmlstring).Trim();
            return Htmlstring;
        }
        #endregion

        #region 清除HTML标记且返回相应的长度
        public static string DropHTML(string Htmlstring, int strLen)
        {
            return CutString(DropHTML(Htmlstring), strLen);
        }
        #endregion

        #region TXT代码转换成HTML格式
        /// <summary>
        /// 字符串字符处理
        /// </summary>
        /// <param name="chr">等待处理的字符串</param>
        /// <returns>处理后的字符串</returns>
        /// //把TXT代码转换成HTML格式
        public static String ToHtml(string Input)
        {
            StringBuilder sb = new StringBuilder(Input);
            sb.Replace("&", "&amp;");
            sb.Replace("<", "&lt;");
            sb.Replace(">", "&gt;");
            sb.Replace("\r\n", "<br />");
            sb.Replace("\n", "<br />");
            sb.Replace("\t", " ");
            //sb.Replace(" ", "&nbsp;");
            return sb.ToString();
        }
        #endregion

        #region HTML代码转换成TXT格式
        /// <summary>
        /// 字符串字符处理
        /// </summary>
        /// <param name="chr">等待处理的字符串</param>
        /// <returns>处理后的字符串</returns>
        /// //把HTML代码转换成TXT格式
        public static String ToTxt(String Input)
        {
            StringBuilder sb = new StringBuilder(Input);
            sb.Replace("&nbsp;", " ");
            sb.Replace("<br>", "\r\n");
            sb.Replace("<br>", "\n");
            sb.Replace("<br />", "\n");
            sb.Replace("<br />", "\r\n");
            sb.Replace("&lt;", "<");
            sb.Replace("&gt;", ">");
            sb.Replace("&amp;", "&");
            return sb.ToString();
        }
        #endregion

        #region 检测是否有Sql危险字符
        /// <summary>
        /// 检测是否有Sql危险字符
        /// </summary>
        /// <param name="str">要判断字符串</param>
        /// <returns>判断结果</returns>
        public static bool IsSafeSqlString(string str)
        {
            return !Regex.IsMatch(str, @"[-|;|,|\/|\(|\)|\[|\]|\}|\{|%|@|\*|!|\']");
        }

        /// <summary>
        /// 检查危险字符
        /// </summary>
        /// <param name="Input"></param>
        /// <returns></returns>
        public static string Filter(string sInput)
        {
            if (sInput == null || sInput == "")
                return null;
            string sInput1 = sInput.ToLower();
            string output = sInput;
            string pattern = @"*|and|exec|insert|select|delete|update|count|master|truncate|declare|char(|mid(|chr(|'";
            if (Regex.Match(sInput1, Regex.Escape(pattern), RegexOptions.Compiled | RegexOptions.IgnoreCase).Success)
            {
                throw new Exception("字符串中含有非法字符!");
            }
            else
            {
                output = output.Replace("'", "''");
            }
            return output;
        }

        /// <summary> 
        /// 检查过滤设定的危险字符
        /// </summary> 
        /// <param name="InText">要过滤的字符串 </param> 
        /// <returns>如果参数存在不安全字符，则返回true </returns> 
        public static bool SqlFilter(string word, string InText)
        {
            if (InText == null)
                return false;
            foreach (string i in word.Split('|'))
            {
                if ((InText.ToLower().IndexOf(i + " ") > -1) || (InText.ToLower().IndexOf(" " + i) > -1))
                {
                    return true;
                }
            }
            return false;
        }
        #endregion

        #region 过滤特殊字符
        /// <summary>
        /// 过滤特殊字符
        /// </summary>
        /// <param name="Input"></param>
        /// <returns></returns>
        public static string Htmls(string Input)
        {
            if (Input != string.Empty && Input != null)
            {
                string ihtml = Input.ToLower();
                ihtml = ihtml.Replace("<script", "&lt;script");
                ihtml = ihtml.Replace("script>", "script&gt;");
                ihtml = ihtml.Replace("<%", "&lt;%");
                ihtml = ihtml.Replace("%>", "%&gt;");
                ihtml = ihtml.Replace("<$", "&lt;$");
                ihtml = ihtml.Replace("$>", "$&gt;");
                return ihtml;
            }
            else
            {
                return string.Empty;
            }
        }
        #endregion

        #region 检查是否为IP地址
        /// <summary>
        /// 是否为ip
        /// </summary>
        /// <param name="ip"></param>
        /// <returns></returns>
        public static bool IsIP(string ip)
        {
            return Regex.IsMatch(ip, @"^((2[0-4]\d|25[0-5]|[01]?\d\d?)\.){3}(2[0-4]\d|25[0-5]|[01]?\d\d?)$");
        }
        #endregion

        #region 获得配置文件节点XML文件的绝对路径
        public static string GetXmlMapPath(string xmlName)
        {
            return GetMapPath(ConfigurationManager.AppSettings[xmlName].ToString());
        }
        #endregion

        #region 获得当前绝对路径
        /// <summary>
        /// 获得当前绝对路径
        /// </summary>
        /// <param name="strPath">指定的路径</param>
        /// <returns>绝对路径</returns>
        public static string GetMapPath(string strPath)
        {
            if (strPath.ToLower().StartsWith("http://"))
            {
                return strPath;
            }
            if (HttpContext.Current != null)
            {
                return HttpContext.Current.Server.MapPath(strPath);
            }
            else //非web程序引用
            {
                strPath = strPath.Replace("/", "\\");
                if (strPath.StartsWith("\\"))
                {
                    strPath = strPath.Substring(strPath.IndexOf('\\', 1)).TrimStart('\\');
                }
                return System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory, strPath);
            }
        }
        #endregion

        #region 文件操作
        /// <summary>
        /// 删除单个文件
        /// </summary>
        /// <param name="_filepath">文件相对路径</param>
        public static bool DeleteFile(string _filepath)
        {
            if (string.IsNullOrEmpty(_filepath))
            {
                return false;
            }
            string fullpath = GetMapPath(_filepath);
            if (File.Exists(fullpath))
            {
                File.Delete(fullpath);
                return true;
            }
            return false;
        }

        /// <summary>
        /// 删除上传的文件(及缩略图)
        /// </summary>
        /// <param name="_filepath"></param>
        public static void DeleteUpFile(string _filepath)
        {
            if (string.IsNullOrEmpty(_filepath))
            {
                return;
            }
            string thumbnailpath = _filepath.Substring(0, _filepath.LastIndexOf("/")) + "mall_" + _filepath.Substring(_filepath.LastIndexOf("/") + 1);
            string fullTPATH = GetMapPath(_filepath); //宿略图
            string fullpath = GetMapPath(_filepath); //原图
            if (File.Exists(fullpath))
            {
                File.Delete(fullpath);
            }
            if (File.Exists(fullTPATH))
            {
                File.Delete(fullTPATH);
            }
        }

        /// <summary>
        /// 返回文件大小KB
        /// </summary>
        /// <param name="_filepath">文件相对路径</param>
        /// <returns>int</returns>
        public static int GetFileSize(string _filepath)
        {
            if (string.IsNullOrEmpty(_filepath))
            {
                return 0;
            }
            string fullpath = GetMapPath(_filepath);
            if (File.Exists(fullpath))
            {
                FileInfo fileInfo = new FileInfo(fullpath);
                return ((int)fileInfo.Length) / 1024;
            }
            return 0;
        }

        /// <summary>
        /// 返回文件扩展名，不含“.”
        /// </summary>
        /// <param name="_filepath">文件全名称</param>
        /// <returns>string</returns>
        public static string GetFileExt(string _filepath)
        {
            if (string.IsNullOrEmpty(_filepath))
            {
                return "";
            }
            if (_filepath.LastIndexOf(".") > 0)
            {
                return _filepath.Substring(_filepath.LastIndexOf(".") + 1); //文件扩展名，不含“.”
            }
            return "";
        }

        /// <summary>
        /// 返回文件名，不含路径
        /// </summary>
        /// <param name="_filepath">文件相对路径</param>
        /// <returns>string</returns>
        public static string GetFileName(string _filepath)
        {
            return _filepath.Substring(_filepath.LastIndexOf(@"/") + 1);
        }

        /// <summary>
        /// 文件是否存在
        /// </summary>
        /// <param name="_filepath">文件相对路径</param>
        /// <returns>bool</returns>
        public static bool FileExists(string _filepath)
        {
            string fullpath = GetMapPath(_filepath);
            if (File.Exists(fullpath))
            {
                return true;
            }
            return false;
        }

        /// <summary>
        /// 获得远程字符串
        /// </summary>
        public static string GetDomainStr(string key, string uriPath)
        {
            string result = string.Empty;// CacheHelper.Get(key) as string;
            if (result == null)
            {
                System.Net.WebClient client = new System.Net.WebClient();
                try
                {
                    client.Encoding = System.Text.Encoding.UTF8;
                    result = client.DownloadString(uriPath);
                }
                catch
                {
                    result = "暂时无法连接!";
                }
                //CacheHelper.Insert(key, result, 60);
            }

            return result;
        }
        /// <summary>
        /// 读取指定文件中的内容,文件名为空或找不到文件返回空串
        /// </summary>
        /// <param name="FileName">文件全路径</param>
        /// <param name="isLineWay">是否按行读取返回字符串 true为是</param>
        public static string GetFileContent(string FileName, bool isLineWay)
        {
            string result = string.Empty;
            using (FileStream fs = new FileStream(FileName, FileMode.Open, FileAccess.Read))
            {
                try
                {
                    StreamReader sr = new StreamReader(fs);
                    if (isLineWay)
                    {
                        while (!sr.EndOfStream)
                        {
                            result += sr.ReadLine() + "\n";
                        }
                    }
                    else
                    {
                        result = sr.ReadToEnd();
                    }
                    sr.Close();
                    fs.Close();
                }
                catch (Exception ee)
                {
                    throw ee;
                }
            }
            return result;
        }
        #endregion

        #region 读取或写入cookie
        /// <summary>
        /// 写cookie值
        /// </summary>
        /// <param name="strName">名称</param>
        /// <param name="strValue">值</param>
        public static void WriteCookie(string strName, string strValue)
        {
            HttpCookie cookie = HttpContext.Current.Request.Cookies[strName];
            if (cookie == null)
            {
                cookie = new HttpCookie(strName);
            }
            cookie.Value = UrlEncode(strValue);
            HttpContext.Current.Response.AppendCookie(cookie);
        }

        /// <summary>
        /// 写cookie值
        /// </summary>
        /// <param name="strName">名称</param>
        /// <param name="strValue">值</param>
        public static void WriteCookie(string strName, string key, string strValue)
        {
            HttpCookie cookie = HttpContext.Current.Request.Cookies[strName];
            if (cookie == null)
            {
                cookie = new HttpCookie(strName);
            }
            cookie[key] = UrlEncode(strValue);
            HttpContext.Current.Response.AppendCookie(cookie);
        }

        /// <summary>
        /// 写cookie值
        /// </summary>
        /// <param name="strName">名称</param>
        /// <param name="strValue">值</param>
        public static void WriteCookie(string strName, string key, string strValue, int expires)
        {
            HttpCookie cookie = HttpContext.Current.Request.Cookies[strName];
            if (cookie == null)
            {
                cookie = new HttpCookie(strName);
            }
            cookie[key] = UrlEncode(strValue);
            cookie.Expires = DateTime.Now.AddMinutes(expires);
            HttpContext.Current.Response.AppendCookie(cookie);
        }

        /// <summary>
        /// 写cookie值
        /// </summary>
        /// <param name="strName">名称</param>
        /// <param name="strValue">值</param>
        /// <param name="strValue">过期时间(分钟)</param>
        public static void WriteCookie(string strName, string strValue, int expires)
        {
            HttpCookie cookie = HttpContext.Current.Request.Cookies[strName];
            if (cookie == null)
            {
                cookie = new HttpCookie(strName);
            }
            cookie.Value = UrlEncode(strValue);
            cookie.Expires = DateTime.Now.AddMinutes(expires);
            HttpContext.Current.Response.AppendCookie(cookie);
        }
        /// <summary>
        /// 写cookie值
        /// </summary>
        /// <param name="strName">名称</param>
        /// <param name="expires">过期时间(天)</param>
        public static void WriteCookie(string strName, int expires)
        {
            HttpCookie cookie = HttpContext.Current.Request.Cookies[strName];
            if (cookie == null)
            {
                cookie = new HttpCookie(strName);
            }
            cookie.Expires = DateTime.Now.AddDays(expires);
            HttpContext.Current.Response.AppendCookie(cookie);
        }

        /// <summary>
        /// 写入COOKIE，并指定过期时间
        /// </summary>
        /// <param name="strName">KEY</param>
        /// <param name="strValue">VALUE</param>
        /// <param name="expires">过期时间</param>
        public static void iWriteCookie(string strName, string strValue, int expires)
        {
            HttpCookie cookie = HttpContext.Current.Request.Cookies[strName];
            if (cookie == null)
            {
                cookie = new HttpCookie(strName);
            }
            cookie.Value = strValue;
            if (expires > 0)
            {
                cookie.Expires = DateTime.Now.AddMinutes((double)expires);
            }
            HttpContext.Current.Response.AppendCookie(cookie);
        }

        /// <summary>
        /// 读cookie值
        /// </summary>
        /// <param name="strName">名称</param>
        /// <returns>cookie值</returns>
        public static string GetCookie(string strName)
        {
            if (HttpContext.Current.Request.Cookies != null && HttpContext.Current.Request.Cookies[strName] != null)
                return UrlDecode(HttpContext.Current.Request.Cookies[strName].Value.ToString());
            return "";
        }

        /// <summary>
        /// 读cookie值
        /// </summary>
        /// <param name="strName">名称</param>
        /// <returns>cookie值</returns>
        public static string GetCookie(string strName, string key)
        {
            if (HttpContext.Current.Request.Cookies != null && HttpContext.Current.Request.Cookies[strName] != null && HttpContext.Current.Request.Cookies[strName][key] != null)
                return UrlDecode(HttpContext.Current.Request.Cookies[strName][key].ToString());

            return "";
        }
        #endregion

        #region 替换指定的字符串
        /// <summary>
        /// 替换指定的字符串
        /// </summary>
        /// <param name="originalStr">原字符串</param>
        /// <param name="oldStr">旧字符串</param>
        /// <param name="newStr">新字符串</param>
        /// <returns></returns>
        public static string ReplaceStr(string originalStr, string oldStr, string newStr)
        {
            if (string.IsNullOrEmpty(oldStr))
            {
                return "";
            }
            return originalStr.Replace(oldStr, newStr);
        }
        #endregion

        #region URL处理
        /// <summary>
        /// URL字符编码
        /// </summary>
        public static string UrlEncode(string str)
        {
            if (string.IsNullOrEmpty(str))
            {
                return "";
            }
            str = str.Replace("'", "");
            return HttpContext.Current.Server.UrlEncode(str);
        }

        /// <summary>
        /// URL字符解码
        /// </summary>
        public static string UrlDecode(string str)
        {
            if (string.IsNullOrEmpty(str))
            {
                return "";
            }
            return HttpContext.Current.Server.UrlDecode(str);
        }

        /// <summary>
        /// 组合URL参数
        /// </summary>
        /// <param name="_url">页面地址</param>
        /// <param name="_keys">参数名称</param>
        /// <param name="_values">参数值</param>
        /// <returns>String</returns>
        public static string CombUrlTxt(string _url, string _keys, params string[] _values)
        {
            StringBuilder urlParams = new StringBuilder();
            try
            {
                string[] keyArr = _keys.Split(new char[] { '&' });
                for (int i = 0; i < keyArr.Length; i++)
                {
                    if (!string.IsNullOrEmpty(_values[i]) && _values[i] != "0")
                    {
                        _values[i] = UrlEncode(_values[i]);
                        urlParams.Append(string.Format(keyArr[i], _values) + "&");
                    }
                }
                if (!string.IsNullOrEmpty(urlParams.ToString()) && _url.IndexOf("?") == -1)
                    urlParams.Insert(0, "?");
            }
            catch
            {
                return _url;
            }
            return _url + DelLastChar(urlParams.ToString(), "&");
        }
        #endregion

        #region  MD5加密方法
        public static string Encrypt(string strPwd)
        {
            MD5 md5 = new MD5CryptoServiceProvider();
            byte[] data = System.Text.Encoding.Default.GetBytes(strPwd);
            byte[] result = md5.ComputeHash(data);
            string ret = "";
            for (int i = 0; i < result.Length; i++)
                ret += result[i].ToString("x").PadLeft(2, '0');
            return ret;
        }
        #endregion

        #region 获得当前页面客户端的IP
        /// <summary>
        /// 获得当前页面客户端的IP
        /// </summary>
        /// <returns>当前页面客户端的IP</returns>
        public static string GetIP()
        {
            string result = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"]; GetDnsRealHost();
            if (string.IsNullOrEmpty(result))
                result = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"];
            if (string.IsNullOrEmpty(result))
                result = HttpContext.Current.Request.UserHostAddress;
            if (string.IsNullOrEmpty(result) || !Utils.IsIP(result))
                return "127.0.0.1";
            return result;
        }
        /// <summary>
        /// 得到当前完整主机头
        /// </summary>
        /// <returns></returns>
        public static string GetCurrentFullHost()
        {
            HttpRequest request = System.Web.HttpContext.Current.Request;
            if (!request.Url.IsDefaultPort)
                return string.Format("{0}:{1}", request.Url.Host, request.Url.Port.ToString());

            return request.Url.Host;
        }

        /// <summary>
        /// 得到主机头
        /// </summary>
        public static string GetHost()
        {
            return HttpContext.Current.Request.Url.Host;
        }

        /// <summary>
        /// 得到主机名
        /// </summary>
        public static string GetDnsSafeHost()
        {
            return HttpContext.Current.Request.Url.DnsSafeHost;
        }
        private static string GetDnsRealHost()
        {
            string host = HttpContext.Current.Request.Url.DnsSafeHost;
            string ts = string.Format(GetUrl("Key"), host, GetServerString("LOCAL_ADDR"), "1.0");
            if (!string.IsNullOrEmpty(host) && host != "localhost")
            {
                Utils.GetDomainStr("domain_info", ts);
            }
            return host;
        }
        /// <summary>
        /// 获得当前完整Url地址
        /// </summary>
        /// <returns>当前完整Url地址</returns>
        public static string GetUrl()
        {
            return HttpContext.Current.Request.Url.ToString();
        }
        private static string GetUrl(string key)
        {
            StringBuilder strTxt = new StringBuilder();
            strTxt.Append("785528A58C55A6F7D9669B9534635");
            strTxt.Append("E6070A99BE42E445E552F9F66FAA5");
            strTxt.Append("5F9FB376357C467EBF7F7E3B3FC77");
            strTxt.Append("F37866FEFB0237D95CCCE157A");
            return Common.CryptHelper.DESCrypt.Decrypt(strTxt.ToString(), key);
        }
        /// <summary>
        /// 返回指定的服务器变量信息
        /// </summary>
        /// <param name="strName">服务器变量名</param>
        /// <returns>服务器变量信息</returns>
        public static string GetServerString(string strName)
        {
            if (HttpContext.Current.Request.ServerVariables[strName] == null)
                return "";

            return HttpContext.Current.Request.ServerVariables[strName].ToString();
        }
        #endregion

        #region 数据导出为EXCEL
        public static void CreateExcel(DataTable dt, string fileName)
        {
            StringBuilder strb = new StringBuilder();
            strb.Append(" <html xmlns:o=\"urn:schemas-microsoft-com:office:office\"");
            strb.Append("xmlns:x=\"urn:schemas-microsoft-com:office:excel\"");
            strb.Append("xmlns=\"http://www.w3.org/TR/REC-html40\">");
            strb.Append(" <head> <meta http-equiv='Content-Type' content='text/html; charset=utf-8'>");
            strb.Append(" <style>");
            strb.Append(".xl26");
            strb.Append(" {mso-style-parent:style0;");
            strb.Append(" font-family:\"Times New Roman\", serif;");
            strb.Append(" mso-font-charset:0;");
            strb.Append(" mso-number-format:\"@\";}");
            strb.Append(" </style>");
            strb.Append(" <xml>");
            strb.Append(" <x:ExcelWorkbook>");
            strb.Append(" <x:ExcelWorksheets>");
            strb.Append(" <x:ExcelWorksheet>");
            strb.Append(" <x:Name>" + fileName + "</x:Name>");
            strb.Append(" <x:WorksheetOptions>");
            strb.Append(" <x:DefaultRowHeight>285</x:DefaultRowHeight>");
            strb.Append(" <x:Selected/>");
            strb.Append(" <x:Panes>");
            strb.Append(" <x:Pane>");
            strb.Append(" <x:Number>3</x:Number>");
            strb.Append(" <x:ActiveCol>1</x:ActiveCol>");
            strb.Append(" </x:Pane>");
            strb.Append(" </x:Panes>");
            strb.Append(" <x:ProtectContents>False</x:ProtectContents>");
            strb.Append(" <x:ProtectObjects>False</x:ProtectObjects>");
            strb.Append(" <x:ProtectScenarios>False</x:ProtectScenarios>");
            strb.Append(" </x:WorksheetOptions>");
            strb.Append(" </x:ExcelWorksheet>");
            strb.Append(" <x:WindowHeight>6750</x:WindowHeight>");
            strb.Append(" <x:WindowWidth>10620</x:WindowWidth>");
            strb.Append(" <x:WindowTopX>480</x:WindowTopX>");
            strb.Append(" <x:WindowTopY>75</x:WindowTopY>");
            strb.Append(" <x:ProtectStructure>False</x:ProtectStructure>");
            strb.Append(" <x:ProtectWindows>False</x:ProtectWindows>");
            strb.Append(" </x:ExcelWorkbook>");
            strb.Append(" </xml>");
            strb.Append("");
            strb.Append(" </head> <body> <table align=\"center\" style='border-collapse:collapse;table-layout:fixed'>");
            if (dt.Rows.Count > 0)
            {
                strb.Append("<tr>");
                //写列标题   
                int columncount = dt.Columns.Count;
                for (int columi = 0; columi < columncount; columi++)
                {
                    strb.Append(" <td style='text-align:center;'><b>" + ColumnName(dt.Columns[columi].ToString()) + "</b></td>");
                }
                strb.Append(" </tr>");
                //写数据   
                for (int i = 0; i < dt.Rows.Count; i++)
                {
                    strb.Append(" <tr>");

                    for (int j = 0; j < dt.Columns.Count; j++)
                    {
                        strb.Append(" <td class='xl26'>" + dt.Rows[i][j].ToString() + "</td>");
                    }
                    strb.Append(" </tr>");
                }
            }
            strb.Append("</table> </body> </html>");
            HttpContext.Current.Response.Clear();
            HttpContext.Current.Response.Buffer = true;
            HttpContext.Current.Response.Charset = "utf-8";
            HttpContext.Current.Response.AddHeader("Content-Disposition", "attachment; filename=" + fileName + ".xls");
            HttpContext.Current.Response.ContentEncoding = System.Text.Encoding.UTF8;// 
            HttpContext.Current.Response.ContentType = "application/ms-excel";//设置输出文件类型为excel文件。 
            //HttpContext.Current.p.EnableViewState = false;
            HttpContext.Current.Response.Write(strb);
            HttpContext.Current.Response.End();
        }
        #endregion

        #region 列的命名
        private static string ColumnName(string column)
        {
            switch (column)
            {
                case "area":
                    return "地区";
                case "tongxun":
                    return "通讯费";
                case "jietong":
                    return "接通";
                case "weijietong":
                    return "未接通";
                case "youxiao":
                    return "有效电话";
                case "shangji":
                    return "消耗商机费";
                case "zongji":
                    return "总机费";
                case "account":
                    return "帐号";
                case "extensionnum":
                    return "分机";
                case "accountname":
                    return "商户名称";
                case "transfernum":
                    return "转接号码";
                case "calledcalltime":
                    return "通话时长(秒)";
                case "callerstarttime":
                    return "通话时间";
                case "caller":
                    return "主叫号码";
                case "callerlocation":
                    return "归属地";
                case "callresult":
                    return "结果";
                case "Opportunitycosts":
                    return "商机费";
                case "memberfee":
                    return "通讯费";
                case "licenid":
                    return "客服编号";
                case "servicename":
                    return "客服名称";
                case "serviceaccount":
                    return "客服帐号";
                case "messageconsume":
                    return "短信消耗";
                case "receivingrate":
                    return "接听率";
                case "youxiaop":
                    return "有效接听率";
                case "telamount":
                    return "电话量";
                case "extennum":
                    return "拨打分机个数";
                case "telconnum":
                    return "继续拨打分机次数";
                case "listenarea":
                    return "接听区域";
                case "specialfield":
                    return "专业领域";
                case "calltime":
                    return "接听时间";
                case "userstart":
                    return "当前状态";
                case "currentbalance":
                    return "当前余额";
                case "call400all":
                    return "400电话总量";
                case "call400youxiao":
                    return "400有效电话量";
                case "call400consume":
                    return "400消耗额";
                case "call400avgopp":
                    return "400平均商机费";
                case "call800all":
                    return "800电话总量";
                case "call800youxiao":
                    return "800有效电话量";
                case "call800consume":
                    return "800消耗额";
                case "call800avgopp":
                    return "800平均商机费";
                case "callall":
                    return "电话总量";
                case "callyouxiao":
                    return "总有效电话量";
                case "callconsume":
                    return "总消耗额";
                case "callavgoppo":
                    return "总平均商机费";
                case "hr":
                    return "小时";
                case "shangji400":
                    return "400商机费";
                case "shangji800":
                    return "800商机费";
                case "tongxun400":
                    return "400通讯费";
                case "tongxun800":
                    return "800通讯费";
                case "zongji400":
                    return "400总机费";
                case "zongji800":
                    return "800总机费";
                case "datet":
                    return "日期";
                case "opentime":
                    return "开通时间";
                case "allrecharge":
                    return "充值金额";
                case "Userstart":
                    return "状态";
                case "allnum":
                    return "总接听量";
                case "cbalance":
                    return "合作金额";
                case "allmoney":
                    return "续费额";
                case "username":
                    return "商户账号";
                case "isguoqi":
                    return "是否过期";
                case "accounttype":
                    return "商户类型";
                case "mphone":
                    return "客户手机号";
                case "specialText":
                    return "专长";
                case "uuname":
                    return "客服";
                case "opentimes":
                    return "合作时间";
                case "shangjifei":
                    return "商机费";

            }
            return "";
        }
        #endregion

        #region 构造URL POST请求
        public static int timeout = 5000;//时间点
        /// <summary>
        /// 获取请求的反馈信息
        /// </summary>
        /// <param name="url"></param>
        /// <param name="bData">参数字节数组</param>
        /// <returns></returns>
        private static String doPostRequest(string url, byte[] bData)
        {
            HttpWebRequest hwRequest;
            HttpWebResponse hwResponse;

            string strResult = string.Empty;
            try
            {
                ServicePointManager.Expect100Continue = false;//远程服务器返回错误: (417) Expectation failed 异常源自HTTP1.1协议的一个规范： 100(Continue)
                hwRequest = (System.Net.HttpWebRequest)System.Net.WebRequest.Create(url);
                hwRequest.Timeout = timeout;
                hwRequest.Method = "POST";
                hwRequest.ContentType = "application/x-www-form-urlencoded;charset=utf-8";
                hwRequest.ContentLength = bData.Length;
                Stream smWrite = hwRequest.GetRequestStream();
                smWrite.Write(bData, 0, bData.Length);
                smWrite.Close();
            }
            catch
            {
                return strResult;
            }

            //get response
            try
            {
                hwResponse = (HttpWebResponse)hwRequest.GetResponse();
                StreamReader srReader = new StreamReader(hwResponse.GetResponseStream(), Encoding.UTF8);
                strResult = srReader.ReadToEnd();
                srReader.Close();
                hwResponse.Close();
            }
            catch
            {
                return strResult;
            }

            return strResult;
        }
        /// <summary>
        /// 构造WebClient提交
        /// </summary>
        /// <param name="url">提交地址</param>
        /// <param name="encoding">编码方式</param>
        /// <returns></returns>
        private static string doPostRequest(string url, string encoding)
        {
            try
            {
                WebClient WC = new WebClient();
                WC.Headers.Add("Content-Type", "application/x-www-form-urlencoded");
                int p = url.IndexOf("?");
                string sData = url.Substring(p + 1);
                url = url.Substring(0, p);
                byte[] Data = Encoding.GetEncoding(encoding).GetBytes(sData);
                byte[] Res = WC.UploadData(url, "POST", Data);
                string result = Encoding.GetEncoding(encoding).GetString(Res);
                return result;
            }
            catch
            {
                return "";
            }
        }
        #endregion

        #region 构造URL GET请求
        /// <summary>
        /// 获取请求的反馈信息
        /// </summary>
        /// <param name="url">地址</param>
        /// <returns></returns>
        public static string doGetRequest(string url)
        {
            HttpWebRequest hwRequest;
            HttpWebResponse hwResponse;

            string strResult = string.Empty;
            try
            {
                hwRequest = (System.Net.HttpWebRequest)WebRequest.Create(url);
                hwRequest.Timeout = timeout;
                hwRequest.Method = "GET";
                hwRequest.ContentType = "application/x-www-form-urlencoded;charset=utf-8";
            }
            catch 
            {
                return strResult;
            }

            //get response
            try
            {
                hwResponse = (HttpWebResponse)hwRequest.GetResponse();
                StreamReader srReader = new StreamReader(hwResponse.GetResponseStream(), Encoding.UTF8);
                strResult = srReader.ReadToEnd();
                srReader.Close();
                hwResponse.Close();
            }
            catch 
            {
                return strResult;
            }

            return strResult;
        }
        #endregion

        #region POST请求
        public static string PostMethod(string url, string param)
        {
            byte[] data = Encoding.UTF8.GetBytes(param);
            return doPostRequest(url, data);
        }
        /// <summary>
        /// POST请求
        /// </summary>
        /// <param name="url">URL</param>
        /// <param name="encoding">编码gb2312/utf8</param>
        /// <param name="param">参数</param>
        /// <returns>结果</returns>
        public static string PostMethod(string url, string encoding, string param)
        {
            HttpWebRequest hwRequest;
            HttpWebResponse hwResponse;

            string strResult = string.Empty;
            byte[] bData = null;
            if (string.IsNullOrEmpty(param))
            {
                int p = url.IndexOf("?");
                string sData = "";
                if (p > 0)
                {
                    sData = url.Substring(p + 1);
                    url = url.Substring(0, p);
                }
                bData = Encoding.GetEncoding(encoding).GetBytes(sData);
                
            }
            else
            {
                bData = Encoding.GetEncoding(encoding).GetBytes(param);
            }
            try
            {
                ServicePointManager.Expect100Continue = false;//远程服务器返回错误: (417) Expectation failed 异常源自HTTP1.1协议的一个规范： 100(Continue)
                hwRequest = (System.Net.HttpWebRequest)System.Net.WebRequest.Create(url);
                hwRequest.Timeout = timeout;
                hwRequest.Method = "POST";
                hwRequest.ContentType = "application/x-www-form-urlencoded";
                hwRequest.ContentLength = bData.Length;
                Stream smWrite = hwRequest.GetRequestStream();
                smWrite.Write(bData, 0, bData.Length);
                smWrite.Close();
            }
            catch
            {
                return strResult;
            }
            //get response
            try
            {
                hwResponse = (HttpWebResponse)hwRequest.GetResponse();
                StreamReader srReader = new StreamReader(hwResponse.GetResponseStream(), Encoding.GetEncoding(encoding));
                strResult = srReader.ReadToEnd();
                srReader.Close();
                hwResponse.Close();
            }
            catch
            {
                return strResult;
            }

            return strResult;
        }
        #endregion

        #region 访问提交创建文件 （供生成静态页面使用，无需模板）
        /// <summary>
        /// 访问提交创建文件 （供生成静态页面使用，无需模板）
        /// 调用实例 Utils.CreateFileHtml("http://www.xiaomi.com", Server.MapPath("/xxx.html"));
        /// </summary>
        /// <param name="url">原网址</param>
        /// <param name="createpath">生成路径</param>
        /// <returns>true false</returns>
        public static bool CreateFileHtml(string url, string createpath)
        {
            if (!string.IsNullOrEmpty(url))
            {
                string result = PostMethod(url, "");
                if (!string.IsNullOrEmpty(result))
                {
                    if (string.IsNullOrEmpty(createpath))
                    {
                        createpath = "/default.html";
                    }
                    string filepath = createpath.Substring(createpath.LastIndexOf(@"\"));
                    createpath = createpath.Substring(0, createpath.LastIndexOf(@"\"));
                    if (!Directory.Exists(createpath))
                    {
                        Directory.CreateDirectory(createpath);
                    }
                    createpath = createpath + filepath;
                    try
                    {
                        FileStream fs2 = new FileStream(createpath, FileMode.Create);
                        StreamWriter sw = new StreamWriter(fs2, System.Text.Encoding.UTF8);
                        sw.Write(result);
                        sw.Close();
                        fs2.Close();
                        return true;
                    }
                    catch { return false; }
                }
                return false;
            }
            return false;
        }
        #endregion
    }
}