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- using System;
- using System.Collections.Generic;
- using System.Linq;
- using System.Text;
- using System.IO;
- using System.Configuration;
- namespace Ant.Frame.Tool
- {
- class DeleteKeyword
- {
- private static string keyword = ConfigurationManager.AppSettings["keyword"].ToLower();
- /// <summary>
- /// 屏蔽非法字符串(如果有出现非法字符,那么用"***"来替换)
- /// </summary>
- /// <param name="strText">要检测的字符串</param>
- /// <returns>返还一个健康的字符</returns>
- public static string CheckKeyword(string strText)
- {
- IList<string> list = new List<string>(); //实例化一个数据集
- string strpath = System.Web.HttpContext.Current.Server.MapPath(keyword); //获取文本文档路径
- int a = strpath.LastIndexOf("IFSns");
- int b = strpath.IndexOf("function");
- string m = strpath.Substring(a + 5, b - a - 6);
- string PathTxt = strpath.Replace(m, ""); //获取调用这个方法的相对路径
- FileStream fs = new FileStream(PathTxt, FileMode.Open, FileAccess.Read); //打开txt文档,将数据存到文件流中
- StreamReader reader = new StreamReader(fs, Encoding.Default); //文件读取
- string strLine = reader.ReadLine();
- while (strLine != null && strLine.Length != 0) //有数据
- {
- list.Add(strLine.Trim().Replace(" ", "")); //如果读取到的数据有空格,则删除空格,并且存到string数据集中
- strLine = reader.ReadLine(); //每读取一次,从该行下一行开始继续读取
- }
- fs.Close(); //关闭文件流
- foreach (string str in list) //循环遍历文件流
- {
- if (strText.Contains(str))
- {
- int lg = str.Length;
- string sg = "";
- for (int i = 0; i < lg; i++)
- {
- sg += "*";
- }
- strText = strText.Replace(str, sg); //如果含有txt文档中的关键字,则替换为"***"
- }
- }
- return strText;
- }
- }
- }
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