using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Web.Security;
using System.Security.Cryptography;
using System.IO;
using System.Web;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Drawing.Imaging;
using System.Reflection;
using System.Data;

public static class DHelper
{
    #region 常用处理


    /// <summary>
    /// 检查DataTable 是否有数据行
    /// </summary>
    /// <param name="dt">DataTable</param>
    /// <returns></returns>
    public static bool IsHaveRows(this System.Data.DataTable dt)
    {
        if (dt != null && dt.Rows.Count > 0)
            return true;
        return false;
    }

    /// <summary>
    /// 对象是否为NULL
    /// </summary>
    /// <param name="str">对象</param>
    /// <returns>是否为NULL</returns>
    public static bool IsNull(this object obj)
    {
        if ((Object.Equals(obj, null)) || (Object.Equals(obj, DBNull.Value)) || (obj == null))
        {
            return true;
        }
        if (obj is DateTime && obj.ToDateTime().Equals(DateTime.MinValue))
        {
            return true;
        }
        return false;
    }
    /// <summary>
    /// 是否包含str字符有true
    /// </summary>
    /// <param name="strs"></param>
    /// <param name="str"></param>
    /// <returns></returns>
    public static bool IsIndexOf(this string strs, string str)
    {
        if (strs.ToLower().IndexOf(str.ToLower()) != -1)
            return true;
        return false;
    }

    /// <summary>
    /// 字符串是否为空true是空
    /// </summary>
    /// <param name="str">字符串</param>
    /// <returns>是否为空</returns>
    public static bool IsEmpty(this string str)
    {
        if (IsNull(str))
        {
            return true;
        }
        if (str.Equals(String.Empty))
        {
            return true;
        }
        return false;
    }


    /// <summary>
    ///  对象不为NULL
    /// </summary>
    /// <param name="str">字符串</param>
    /// <returns>返回字符串</returns>
    public static string IfNull(this object str)
    {
        if (str == null || Object.Equals(str, null))
        {
            return String.Empty;
        }
        return str.ToString();
    }

    /// <summary>
    ///  对象不为NULL
    /// </summary>
    /// <param name="str">字符串</param>
    /// <returns>返回字符串</returns>
    public static bool IfNotNull(this object str)
    {
        if ((Object.Equals(str, null)) || (Object.Equals(str, DBNull.Value)) || (str == null))
        {
            return false;
        }
        return true;
    }

    /// <summary>
    /// 有值?(与IsNullOrEmpty相反)
    /// </summary>
    /// <returns></returns>
    public static bool IsValuable(this IEnumerable<object> thisValue)
    {
        if (thisValue == null || thisValue.Count() == 0) return false;
        return true;
    }


    /// <summary>
    /// 字符串不为NULL
    /// </summary>
    /// <param name="str">要验证字符串</param>
    /// <param name="val">为空返回字符串</param>
    /// <returns>返回字符串</returns>
    public static string IfNull(this string str, string retStr)
    {
        if (str == null || Object.Equals(str, null))
        {
            return retStr;
        }
        return str;
    }

    /// <summary>
    /// 字符串数组转换成数字
    /// </summary>
    /// <param name="strs">字符串</param>
    /// <returns>数字</returns>
    public static int[] StrsToInts(this string[] strs)
    {
        int[] ints = new int[strs.Length];
        for (int i = 0; i < strs.Length; i++)
        {
            ints[i] = Convert.ToInt32(strs[i]);
        }
        return ints;
    }

    /// <summary>
    /// 取得自定义长度的字符串
    /// </summary>
    /// <param name="str">字符串</param>
    /// <param name="lenght">长度</param>
    /// <returns>截取后字符串</returns>
    public static string CutChar(this string str, int lenght)
    {
        if (str.Length > lenght)
        {
            return str.Substring(0, lenght) + DString.OMITTED;
        }
        else
        {
            return str;
        }
    }

    /// <summary>
    /// 取得自定义长度的字符串  中文123456789           
    /// </summary>
    /// <param name="str">字符串</param>
    /// <param name="lenght">长度</param>
    /// <returns>截取后字符串</returns>
    public static string CutCNChar(this string str, int lenght)
    {
        string ret = String.Empty;
        if (str.Length > lenght)
        {
            int tempnum1 = 0;
            int tempnum2 = 0;
            byte[] byitem = System.Text.ASCIIEncoding.ASCII.GetBytes(str);
            for (int i = 0; i < str.Length; i++)
            {
                if ((int)byitem[i] != 63)
                {
                    tempnum1++;
                }
                else
                {
                    tempnum2++;
                }
                if (tempnum2 * 2 + tempnum1 >= lenght * 2)
                {
                    break;
                }

            }
            ret = str.Substring(0, tempnum2 + tempnum1) + DString.OMITTED;
        }
        else
        {
            ret = str;
        }
        return ret;
    }

    /// <summary>
    /// 返回字符串真实长度 1个汉字长度为2
    /// </summary>
    /// <param name="str">字符串</param>
    /// <returns>实际字符串长度</returns>
    public static int GetCharLength(this string str)
    {
        return Encoding.Default.GetBytes(str).Length;
    }

    /// <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(this string str)
    {
        return !Regex.IsMatch(str, @"[-|;|,|\/|\(|\)|\[|\]|\}|\{|%|@|\*|!|\']");
    }
    public static bool IsSafety(this string str)
    {
        string text1 = Regex.Replace(str.Replace("%20", " "), @"\s", " ");
        string text2 = "select |insert |delete from |count\\(|drop table|update |truncate |asc\\(|mid\\(|char\\(|xp_cmdshell|exec master|net localgroup administrators|:|net user|\"|\\'| or ";
        return !Regex.IsMatch(text1, text2, RegexOptions.IgnoreCase);
    }

    /// <summary>
    /// 替换字符串
    /// </summary>
    /// <param name="Str">要替换的字符型</param>
    /// <returns>替换后的字符串</returns>
    public static string ReplaceW(this string str)
    {
        return Regex.Replace(str, DString.W, String.Empty).ToString();
    }

    /// <summary>
    /// SHA1加密字符串
    /// </summary>
    /// <param name="str">要加密的字符串</param>
    /// <returns>加密后的字符串</returns>
    public static string EncryptSHA1(this string str)
    {
        if (!str.IsEmpty())
        {
            return FormsAuthentication.HashPasswordForStoringInConfigFile(ReplaceW(str), DConfig.SHA1);
        }
        return str;
    }

    /// <summary>
    /// MD5加密字符串
    /// </summary>
    /// <param name="str">要加密的字符串</param>
    /// <returns>加密后的字符串</returns>
    public static string EncryptMD5(this string str)
    {
        if (!str.IsEmpty())
        {
            return FormsAuthentication.HashPasswordForStoringInConfigFile(ReplaceW(str), DConfig.MD5);
        }
        return str;
    }

    /// <summary> 
    /// DES加密字符串 
    /// </summary> 
    /// <param name="encryptString">待加密的字符串</param>
    /// <param name="encryptKey">加密密钥,要求为8位</param> 
    /// <returns>加密成功返回加密后的字符串，失败返回源串</returns>
    public static string EncryptDES(this string encryptString, string encryptKey)
    {
        try
        {
            byte[] rgbKey = Encoding.UTF8.GetBytes(encryptKey.Substring(0, 8));
            byte[] rgbIV = DConfig.KEYS;
            byte[] inputByteArray = Encoding.UTF8.GetBytes(encryptString);
            DESCryptoServiceProvider dCSP = new DESCryptoServiceProvider();
            MemoryStream mStream = new MemoryStream();
            CryptoStream cStream = new CryptoStream(mStream, dCSP.CreateEncryptor(rgbKey, rgbIV), CryptoStreamMode.Write);
            cStream.Write(inputByteArray, 0, inputByteArray.Length);
            cStream.FlushFinalBlock();
            return Convert.ToBase64String(mStream.ToArray());
        }
        catch (Exception ex)
        {
            // Log.WriteLog(DMessage.ERR, ex);
        }
        return encryptString;
    }

    /// <summary> 
    /// DES解密字符串
    /// </summary> 
    /// <param name="decryptString">待解密的字符串</param>
    /// <param name="decryptKey">解密密钥,要求为8位,和加密密钥相同</param>
    /// <returns>解密成功返回解密后的字符串，失败返源串</returns>
    public static string DecryptDES(this string decryptString, string decryptKey)
    {

        try
        {
            byte[] rgbKey = Encoding.UTF8.GetBytes(decryptKey);
            byte[] rgbIV = DConfig.KEYS;
            byte[] inputByteArray = Convert.FromBase64String(decryptString);
            DESCryptoServiceProvider DCSP = new DESCryptoServiceProvider();
            MemoryStream mStream = new MemoryStream();
            CryptoStream cStream = new CryptoStream(mStream, DCSP.CreateDecryptor(rgbKey, rgbIV), CryptoStreamMode.Write);
            cStream.Write(inputByteArray, 0, inputByteArray.Length);
            cStream.FlushFinalBlock();
            return Encoding.UTF8.GetString(mStream.ToArray());
        }
        catch (Exception ex)
        {
            ////DLog.WriteLog(DMessage.ERR, ex);
        }
        return decryptString;
    }

    /// <summary>
    /// 生成随机字符串
    /// </summary>
    /// <param name="length">字符串长度</param>
    /// <returns>随机字符串</returns>
    public static string RandChar(int length)
    {
        string strSep = DString.COMMA;
        char[] chrSep = strSep.ToCharArray();

        //因1与l不容易分清楚，所以去除
        //因0与O不容易分清楚，所以去除 
        string strChar = DString.CHAR;
        string[] aryChar = strChar.Split(chrSep, strChar.Length);
        string strRandom = string.Empty;
        Random Rnd = new Random();
        //生成随机字符串 
        for (int i = 0; i < length; i++)
        {
            strRandom += aryChar[Rnd.Next(aryChar.Length)];
        }
        return strRandom;
    }

    /// <summary>
    /// 生成随机数字字符串
    /// </summary>
    /// <param name="length">字符串长度</param>
    /// <returns>随机字符串</returns>
    public static string RandNum(int length)
    {
        string strSep = DString.COMMA;
        char[] chrSep = strSep.ToCharArray();

        //因1与l不容易分清楚，所以去除
        //因0与O不容易分清楚，所以去除 
        string strChar = DString.NUM;
        string[] aryChar = strChar.Split(chrSep, strChar.Length);
        string strRandom = string.Empty;
        Random rnd = new Random();
        //生成随机字符串 
        for (int i = 0; i < length; i++)
        {
            strRandom += aryChar[rnd.Next(aryChar.Length)];
        }
        return strRandom;
    }

    /// <summary>
    /// 生成随机汉子字符串
    /// </summary>
    /// <param name="length">字符串长度</param>
    /// <returns>随机字符串</returns>
    public static string RandCN(int length)
    {
        string strSep = DString.COMMA;
        char[] chrSep = strSep.ToCharArray();

        string strChar = DString.CN;

        //定义一个字符串数组储存汉字编码的组成元素
        string[] rBase = strChar.Split(chrSep, strChar.Length);

        Random rnd = new Random();

        //定义一个object数组用来
        object[] bytes = new object[length];

        /*每循环一次产生一个含两个元素的十六进制字节数组，并将其放入bject数组中
         每个汉字有四个区位码组成
         区位码第1位和区位码第2位作为字节数组第一个元素
         区位码第3位和区位码第4位作为字节数组第二个元素
         */
        for (int i = 0; i < length; i++)
        {
            //区位码第1位
            int r1 = rnd.Next(11, 14);
            string str_r1 = rBase[r1].Trim();

            //区位码第2位
            rnd = new Random(r1 * unchecked((int)DateTime.Now.Ticks) + i);//更换随机数发生器的种子避免产生重复值

            int r2;
            if (r1 == 13)
            {
                r2 = rnd.Next(0, 7);
            }
            else
            {
                r2 = rnd.Next(0, 16);
            }
            string str_r2 = rBase[r2].Trim();

            //区位码第3位
            rnd = new Random(r2 * unchecked((int)DateTime.Now.Ticks) + i);
            int r3 = rnd.Next(10, 16);
            string str_r3 = rBase[r3].Trim();

            //区位码第4位
            rnd = new Random(r3 * unchecked((int)DateTime.Now.Ticks) + i);
            int r4;
            if (r3 == 10)
            {
                r4 = rnd.Next(1, 16);
            }
            else if (r3 == 15)
            {
                r4 = rnd.Next(0, 15);
            }
            else
            {
                r4 = rnd.Next(0, 16);
            }
            string str_r4 = rBase[r4].Trim();

            //定义两个字节变量存储产生的随机汉字区位码
            byte byte1 = Convert.ToByte(str_r1 + str_r2, 16);
            byte byte2 = Convert.ToByte(str_r3 + str_r4, 16);
            //将两个字节变量存储在字节数组中
            byte[] str_r = new byte[] { byte1, byte2 };

            //将产生的一个汉字的字节数组放入object数组中
            bytes.SetValue(str_r, i);

        }
        Encoding gb = Encoding.GetEncoding(DString.GBK);
        string[] str = new string[length];
        string chars = String.Empty;
        for (int i = 0; i < length; i++)
        {
            str[i] = gb.GetString((byte[])Convert.ChangeType(bytes[i], typeof(byte[])));
            chars = chars + str[i];
        }
        return chars;
    }

    /// <summary>
    /// 生成随机文件名
    /// </summary>
    /// <param name="filename">文件名</param>
    /// <returns>随机文件名</returns>
    public static string RandFileName()
    {
        return DObject.DATE_TIME + RandChar(5);
    }

    /// <summary>
    /// 生成随机订单号
    /// </summary>
    /// <returns>随机文件名</returns>
    public static string RandOrder()
    {
        return DObject.DATE_TIME + RandNum(8);
    }

    /// <summary>
    /// 生成小文件名
    /// </summary>
    /// <returns>原文件名</returns>
    public static string GetMin(this string filename)
    {
        return filename.Substring(0, filename.LastIndexOf(DString.POINT)) + DString.MIN + filename.Substring(filename.LastIndexOf(DString.POINT), filename.Length - filename.LastIndexOf(DString.POINT));
    }

    /// <summary>
    /// 生成缩略图
    /// </summary>
    /// <param name="originalImagePath">源图路径（物理路径）</param>
    /// <param name="thumbnailPath">缩略图路径（物理路径）</param>
    /// <param name="width">缩略图宽度</param>
    /// <param name="height">缩略图高度</param>
    /// <param name="mode">生成缩略图的方式 3:指定高宽缩放（可能变形）2:指定宽，高按比例 1:指定高，宽按比例0:指定高宽裁减（不变形）</param>    
    public static bool MakeThumbnail(string originalImagePath, string thumbnailPath, int width, int height, int mode)
    {
        bool isSuccess = true;
        Image originalImage = Image.FromFile(originalImagePath);

        int towidth = width;
        int toheight = height;

        int x = 0;
        int y = 0;
        int ow = originalImage.Width;
        int oh = originalImage.Height;

        switch (mode)
        {
            case 3://指定高宽缩放（可能变形）                
                break;
            case 2://指定宽，高按比例                    
                toheight = originalImage.Height * width / originalImage.Width;
                break;
            case 1://指定高，宽按比例
                towidth = originalImage.Width * height / originalImage.Height;
                break;
            case 0://指定高宽裁减（不变形）                
                if ((double)originalImage.Width / (double)originalImage.Height > (double)towidth / (double)toheight)
                {
                    oh = originalImage.Height;
                    ow = originalImage.Height * towidth / toheight;
                    y = 0;
                    x = (originalImage.Width - ow) / 2;
                }
                else
                {
                    ow = originalImage.Width;
                    oh = originalImage.Width * height / towidth;
                    x = 0;
                    y = (originalImage.Height - oh) / 2;
                }
                break;
            default:
                break;
        }

        //新建一个bmp图片
        Image bitmap = new Bitmap(towidth, toheight);

        //新建一个画板
        Graphics g = Graphics.FromImage(bitmap);

        //设置高质量插值法
        g.InterpolationMode = InterpolationMode.HighQualityBicubic;

        //设置高质量,低速度呈现平滑程度
        g.SmoothingMode = SmoothingMode.HighQuality;

        //清空画布并以透明背景色填充
        g.Clear(Color.White);

        //在指定位置并且按指定大小绘制原图片的指定部分
        g.DrawImage(originalImage, new Rectangle(0, 0, towidth, toheight),
            new Rectangle(x, y, ow, oh),
            GraphicsUnit.Pixel);

        try
        {
            //以jpg格式保存缩略图
            bitmap.Save(thumbnailPath, ImageFormat.Jpeg);
        }
        catch (System.Exception ex)
        {
            isSuccess = false;
            ////DLog.WriteLog(DMessage.ERR, ex);
        }
        finally
        {
            originalImage.Dispose();
            bitmap.Dispose();
            g.Dispose();
        }
        return isSuccess;
    }

    /// <summary>
    /// 根据属性名提取属性值
    /// </summary>
    /// <typeparam name="T">类型</typeparam>
    /// <param name="obj">要提取的对象</param>
    /// <param name="name">属性名</param>
    /// <returns>提取出的属性值</returns>
    public static object GetPropertyByName<T>(T obj, string name)
    {
        try
        {
            Type t = obj.GetType();
            PropertyInfo pi = t.GetProperty(name);
            return pi.GetValue(obj, null);
        }
        catch (System.Exception ex)
        {
            //DLog.WriteLog(DMessage.ERR, ex);
        }
        return new Object();
    }

    /// <summary>
    /// 根据属性名设置值
    /// </summary>
    /// <typeparam name="T">类型</typeparam>
    /// <param name="obj">要设置的对象</param>
    /// <param name="name">属性名</param>
    /// <param name="val">属性值</param>
    /// <returns>设置值后的对象</returns>
    public static T SetPropertyByName<T>(T obj, string name, object val)
    {
        try
        {
            Type t = obj.GetType();
            PropertyInfo pi = t.GetProperty(name);
            pi.SetValue(obj, val, null);
        }
        catch (System.Exception ex)
        {
            //DLog.WriteLog(DMessage.ERR, ex);
        }
        return obj;
    }

    #endregion

    #region 网页

    #region 常用

    /// <summary>
    /// 提取网址
    /// </summary>
    /// <param name="url">地址</param>
    /// <returns>真实地址</returns>
    public static string GetResolvedUrl(this string url)
    {
        return DObject.CURRECT_PAGE.ResolveUrl(url);
    }

    #endregion

    #region 页面跳转

    /// <summary>
    /// 页面出错
    /// </summary>
    public static void GoError()
    {
        DObject.CURRECT_PAGE.Response.Redirect(DConfig.PAGE_ERROR);
    }

    /// <summary>
    /// 无访问权限
    /// </summary>
    public static void GoNoPower()
    {
        DObject.CURRECT_PAGE.Response.Redirect(DConfig.PAGE_NOACCESS);
    }

    /// <summary>
    /// 找不到页面
    /// </summary>
    public static void GoNoFound()
    {
        DObject.CURRECT_PAGE.Response.Redirect(DConfig.PAGE_NOFOUND);
    }

    /// <summary>
    /// 网站维护中
    /// </summary>
    public static void GoMaintenance()
    {
        DObject.CURRECT_PAGE.Response.Redirect(DConfig.PAGE_MAINTENANCE);
    }

    #endregion

    #region COOKIE

    /// <summary>
    /// 创建COOKIE对象并赋Value值，修改COOKIE的Value值也用此方法，因为对COOKIE修改必须重新设Expires
    /// </summary>
    /// <param name="strCookieName">COOKIE对象名</param>
    /// <param name="iExpires">COOKIE对象有效时间（秒数），0一周内有效，1表示永久有效，大于等于2表示具体有效秒数</param>
    /// <param name="strValue">COOKIE对象Value值</param>
    public static void SetCookie(string strCookieName, int iExpires, string strValue)
    {
        HttpCookie objCookie = new HttpCookie(strCookieName);
        objCookie.Value = UrlEncode(strValue.Trim());
        if (iExpires >= 0)
        {
            if (iExpires.Equals(0))
            {
                objCookie.Expires = DateTime.Now.AddDays(7);
            }
            else if (iExpires.Equals(1))
            {
                objCookie.Expires = DateTime.MaxValue;
            }
            else
            {
                objCookie.Expires = DateTime.Now.AddSeconds(iExpires);
            }
        }
        DObject.CURRECT_PAGE.Response.Cookies.Add(objCookie);
    }

    /// <summary>
    /// 读取Cookie某个对象的Value值，返回Value值，如果对象本就不存在，则返回字符串"CookieNonexistence"
    /// </summary>
    /// <param name="strCookieName">Cookie对象名称</param>
    /// <returns>Value值，如果对象本就不存在，则返回字符串""</returns>
    public static string GetCookie(string strCookieName)
    {
        if (DObject.CURRECT_PAGE.Request.Cookies[strCookieName].IsNull())
        {
            return String.Empty;
        }
        else
        {
            return UrlDecode(DObject.CURRECT_PAGE.Request.Cookies[strCookieName].Value);
        }
    }

    /// <summary>
    /// URL解码
    /// </summary>
    /// <param name="str">要解码的字符串</param>
    /// <returns>解码后的字符串</returns>
    public static string UrlDecode(this string str)
    {
        try
        {
            return HttpUtility.UrlDecode(str);
        }
        catch (Exception ex)
        {
            //DLog.WriteLog(DMessage.ERR, ex);
        }
        return str;
    }

    /// <summary>
    /// URL编码
    /// </summary>
    /// <param name="str">要编码的字符串</param>
    /// <returns>编码后的字符串</returns>
    public static string UrlEncode(this string str)
    {
        try
        {
            return HttpUtility.UrlEncode(str);
        }
        catch (Exception ex)
        {
            //DLog.WriteLog(DMessage.ERR, ex);
        }
        return str;
    }

    /// <summary>
    /// HTML解码
    /// </summary>
    /// <param name="str">要解码的字符串</param>
    /// <returns>解码后的字符串</returns>
    public static string HtmlDecode(this string str)
    {
        try
        {
            return HttpUtility.HtmlDecode(str);
        }
        catch (Exception ex)
        {
            //DLog.WriteLog(DMessage.ERR, ex);
        }
        return str;
    }

    /// <summary>
    /// HTML编码
    /// </summary>
    /// <param name="str">要编码的字符串</param>
    /// <returns>编码后的字符串</returns>
    public static string HtmlEncode(this string str)
    {
        try
        {
            return HttpUtility.HtmlEncode(str);
        }
        catch (Exception ex)
        {
            //DLog.WriteLog(DMessage.ERR, ex);
        }
        return str;
    }

    #endregion

    #region Session

    /// <summary>
    /// 读取session值
    /// </summary>
    /// <param name="name">名称</param>
    /// <returns>值</returns>
    public static object GetSession(string name)
    {
        object Str_Value = null;
        try
        {
            Str_Value = DObject.CURRECT_PAGE.Session[name];
        }
        catch (Exception ex)
        {
            Str_Value = null;
            //DLog.WriteLog(DMessage.ERR, ex);
        }
        return Str_Value;
    }

    /// <summary>
    /// 读取session值
    /// </summary>
    /// <param name="name">名称</param>
    /// <returns>值</returns>
    public static string GetStrSession(string name)
    {
        string Str_Value = null;
        try
        {
            Str_Value = DObject.CURRECT_PAGE.Session[name].ToString();
        }
        catch (Exception ex)
        {
            Str_Value = String.Empty;
            //DLog.WriteLog(DMessage.ERR, ex);
        }
        return Str_Value;
    }

    /// <summary>
    /// 设置session值
    /// </summary>
    /// <param name="name">名称</param>
    /// <param name="pObj_Value">值</param>
    public static void SetSession(string name, object value)
    {
        try
        {
            DObject.CURRECT_PAGE.Session[name] = value;
        }
        catch (Exception ex)
        {
            //DLog.WriteLog(DMessage.ERR, ex);
        }
    }

    #endregion

    #region HTML

    /// <summary>
    /// 读取提交值
    /// </summary>
    /// <param name="name">名称</param>
    /// <returns>提交值</returns>
    public static string GetQueryString(string name)
    {
        if (DObject.CURRECT_PAGE.Request[name].IsNull())
        {
            return String.Empty;
        }
        return DObject.CURRECT_PAGE.Request[name];
    }

    /// <summary>
    /// 取得当前URL
    /// </summary>
    /// <returns>当前URL</returns>
    public static string GetPath()
    {
        string strPath = String.Format(DString.STRING_URL,
                         HttpContext.Current.Request.ServerVariables[DString.STRING_HOST],
                         HttpContext.Current.Request.ServerVariables[DString.STRING_PATH_INFO],
                         HttpContext.Current.Request.ServerVariables[DString.STRING_QUERY_STRING]);
        if (strPath.IndexOf(DString.QM) > 0)
        {
            strPath = strPath.Substring(0, strPath.IndexOf(DString.QM));
        }
        return strPath;
    }

    /// <summary>
    /// Aspx 转换到 Html
    /// </summary>
    /// <param name="url">地址</param>
    /// <returns>字符串</returns>
    public static string AspxToHtml(this string url)
    {
        //判断路径是否为空
        if (!url.IsEmpty())
        {
            //分割路径
            string[] temp = url.Split(DString.CHAR_QM);

            //路径不合法
            if (temp.Length != 1 && temp.Length != 2)
            {
                return url;
            }

            //获取路径后缀
            string ext = Path.GetExtension(temp[0]);
            //后缀不为ASPX直接返回
            if (!(ext.Equals(DString.STRING_ASPX, StringComparison.OrdinalIgnoreCase)))
            {
                return url;
            }

            //截取.aspx中前面的内容
            int offset = temp[0].LastIndexOf(DString.CHAR_POINT);
            string resource = temp[0].Substring(0, offset);

            //路径不带参数时
            if (temp.Length == 1 || string.IsNullOrEmpty(temp[1]))
            {
                return string.Format(DString.STRING_HTML0, resource);
            }
            string aurl = temp[1].Replace(DString.CHAR_EQ, DString.CHAR_UNDERLINE);
            //路径带参数时
            return string.Format(DString.STRING_HTML01, resource, aurl.Replace(DString.AMP, DString.UNDERLINE_T));

        }
        return String.Empty;
    }

    /// <summary>
    /// Html 转换到 Aspx
    /// </summary>
    /// <param name="url">地址</param>
    /// <returns>字符串</returns>
    public static string HtmlToAspx(this string url)
    {
        //判断路径是否为空
        if (!url.IsEmpty())
        {
            string ext = Path.GetExtension(url);
            //路径不为HTML
            if (!(ext.Equals(DString.STRING_HTML, StringComparison.OrdinalIgnoreCase)))
            {
                return url;
            }

            string[] temp = url.Split(new String[] { DString.UNDERLINE_TH, DString.POINT }, StringSplitOptions.RemoveEmptyEntries);
            if (temp.Length == 2)
            {
                return string.Format(DString.STRING_ASPX0, temp[0]);
            }

            if (temp.Length == 3)
            {
                string aurl = temp[1].Replace(DString.UNDERLINE_T, DString.AMP);
                return String.Format(DString.STRING_ASPX01, temp[0], aurl.Replace(DString.CHAR_UNDERLINE, DString.CHAR_EQ));
            }
        }

        return String.Empty;
    }

    /// <summary>
    /// 过滤HTML代码
    /// </summary>
    /// <param name="fieldValue">要过滤的数据</param>
    /// <returns>过滤后的数据</returns>
    public static string FilterHTML(this string str)
    {
        Regex regexScript = new Regex(DString.STRING_SCRIPT, RegexOptions.IgnoreCase);
        Regex regexHref = new Regex(DString.STRING_HREFSCRIPT, RegexOptions.IgnoreCase);
        Regex regexOn = new Regex(DString.HTML_EVEN, RegexOptions.IgnoreCase);
        Regex regexIframe = new Regex(DString.STRING_IFRAME, RegexOptions.IgnoreCase);
        Regex regexFrameset = new Regex(DString.HTML_IFRAMESET, RegexOptions.IgnoreCase);
        string html = str.Trim();
        html = regexScript.Replace(html, String.Empty); //过滤<script></script>标记
        html = regexHref.Replace(html, String.Empty); //过滤href=javascript: (<A>) 属性
        html = regexOn.Replace(html, DString.HTML_EVEN_R); //过滤其它控件的on事件
        html = regexIframe.Replace(html, String.Empty); //过滤iframe
        html = regexFrameset.Replace(html, String.Empty); //过滤frameset
        return html;
    }

    #endregion

    #endregion

    #region 类型转换


    /// <summary>
    /// 转换成INT
    /// </summary>
    /// <param name="obj">要转换的对象</param>
    /// <returns>转换结果</returns>
    public static int ToInt32(this object obj)
    {
        try
        {
            if (obj.IsNull())
            {
                return 0;
            }
            int ret = Convert.ToInt32(obj);
            return ret;
        }
        catch (Exception ex)
        {
            //DLog.WriteLog(DMessage.ERR, ex);
        }
        return 0;
    }

    /// <summary>
    /// 转换成DataTable
    /// </summary>
    /// <param name="obj"></param>
    /// <returns></returns>
    public static DataTable ToDataTable(this object obj)
    {
        try
        {
            if (obj.IsNull())
            {
                return new DataTable();
            }
            DataTable ret =  obj as DataTable;
            return ret;
        }
        catch (Exception ex)
        {
            //DLog.WriteLog(DMessage.ERR, ex);
        }
        return new DataTable();
    }
    /// <summary>
    /// 转换成List集合
    /// </summary>
    /// <typeparam name="T"></typeparam>
    /// <param name="obj"></param>
    /// <returns></returns>
    public static List<T> ToModList<T>(this object obj) where T : new()
    {
        try
        {
            if (obj.IsNull())
            {
                return new List<T>();
            }
            List<T> ret = obj as List<T>;
            return ret;
        }
        catch (Exception ex)
        {
            //DLog.WriteLog(DMessage.ERR, ex);
        }
        return new List<T>();
    }

    /// <summary>
    /// 转换成List集合
    /// </summary>
    /// <typeparam name="T"></typeparam>
    /// <param name="obj"></param>
    /// <returns></returns>
    public static T ToMod<T>(this object obj) where T : new()
    {
        try
        {
            if (obj.IsNull())
            {
                return new T();
            }
            T ret = (T)obj;
            return ret;
        }
        catch (Exception ex)
        {
            //DLog.WriteLog(DMessage.ERR, ex);
        }
        return new T();
    }
    /// <summary>
    /// 转换成INT
    /// </summary>
    /// <param name="obj">要转换的对象</param>
    /// <returns>转换结果</returns>
    public static int ToInt32(this object obj, int defValue)
    {
        try
        {
            if (obj.IsNull())
            {
                return defValue;
            }
            int ret = Convert.ToInt32(obj);
            return ret;
        }
        catch (Exception ex)
        {
            //DLog.WriteLog(DMessage.ERR, ex);
        }
        return defValue;
    }
    /// <summary>
    /// 转换成INT
    /// </summary>
    /// <param name="obj">要转换的对象</param>
    /// <returns>转换结果</returns>
    public static decimal ToDec(this object obj)
    {
        try
        {
            if (obj.IsNull())
            {
                return 0;
            }
            decimal ret = Convert.ToDecimal(obj);
            return ret;
        }
        catch (Exception ex)
        {
            //DLog.WriteLog(DMessage.ERR, ex);
        }
        return 0;
    }

    /// <summary>
    /// 转换成INT
    /// </summary>
    /// <param name="obj">要转换的对象</param>
    /// <returns>转换结果</returns>
    public static decimal ToDec(this object obj, decimal defValue)
    {
        try
        {
            if (obj.IsNull())
            {
                return defValue;
            }
            decimal ret = Convert.ToDecimal(obj);
            return ret;
        }
        catch (Exception ex)
        {
            //DLog.WriteLog(DMessage.ERR, ex);
        }
        return defValue;
    }
    /// <summary>
    /// 转换成BOOL
    /// </summary>
    /// <param name="obj">要转换的对象</param>
    /// <returns>转换结果</returns>
    public static double ToDou(this object obj)
    {
        try
        {
            if (obj.IsNull())
            {
                return 0;
            }
            double ret = Convert.ToDouble(obj);
            return ret;
        }
        catch (Exception ex)
        {
            //DLog.WriteLog(DMessage.ERR, ex);
        }
        return 0;
    }

    public static float ToFloat(this object obj, int defValue)
    {
        try
        {
            if (obj.IsNull())
            {
                return defValue;
            }
            float ret = Convert.ToInt32(obj);
            return ret;
        }
        catch (Exception ex)
        {
            //DLog.WriteLog(DMessage.ERR, ex);
        }
        return defValue;
    }

    /// <summary>
    /// 转换成BOOL
    /// </summary>
    /// <param name="obj">要转换的对象</param>
    /// <returns>转换结果</returns>
    public static double ToDou(this object obj, double defValue)
    {
        try
        {
            if (obj.IsNull())
            {
                return defValue;
            }
            double ret = Convert.ToDouble(obj);
            return ret;
        }
        catch (Exception ex)
        {
            //DLog.WriteLog(DMessage.ERR, ex);
        }
        return defValue;
    }
    /// <summary>
    /// 转换成BOOL
    /// </summary>
    /// <param name="obj">要转换的对象</param>
    /// <returns>转换结果</returns>
    public static bool ToBool(this object obj)
    {
        try
        {
            if (obj.IsNull())
            {
                return false;
            }
            bool ret = Convert.ToBoolean(obj);
            return ret;
        }
        catch (Exception ex)
        {
            //DLog.WriteLog(DMessage.ERR, ex);
        }
        return false;
    }

    /// <summary>
    /// 转换成BOOL
    /// </summary>
    /// <param name="obj">要转换的对象</param>
    /// <returns>转换结果</returns>
    public static DateTime ToDateTime(this object obj)
    {
        try
        {
            DateTime ret = Convert.ToDateTime(obj);
            return ret;
        }
        catch (Exception ex)
        {
            //DLog.WriteLog(DMessage.ERR, ex);
        }
        return DObject.EMPTY_DATE_TIME;
    }

    public static string ToDateTimeStr(this DateTime obj)
    {
        try
        {
            return obj.ToString("yyyy-MM-dd");
        }
        catch (Exception ex)
        {
            //DLog.WriteLog(DMessage.ERR, ex);
        }
        return "";
    }

    #endregion
}