两个将简体中文网页自动转为繁体中文网的页简单方法 (原理非常简单,尚不完善 IHttpHandler Proxy / Response.Filter)

一:

/*

将"任意"在线简体中文网页转为繁体中文页简单方法

以前都写在 Aspx 的 Codebehind 里用 WebRequest 抓别人的网页

ASP 时代用 XMLHTTP Object 抓

1. Microshaoft.HttpHandlers.cs 保存到 IIS 站点或某虚拟目录下的 \bin\Microshaoft.HttpHandlers.cs

2. csc /t:library Microshaoft.HttpHandlers.cs /r:C:\WINNT\Microsoft.NET\Framework\v1.1.4322\Microsoft.VisualBasic.dll

生成 IIS 站点或某虚拟目录下的 \bin\Microshaoft.HttpHandlers.dll

3. IIS 站点或某虚拟目录下 Web.Config:

<?xml version="1.0" encoding="utf-8" ?>

<configuration>

 <system.web>

  <compilation defaultLanguage="c#" debug="true" />

  <httpHandlers>

   <add verb="*" path="sina.aspx" type="Microshaoft.HttpHandlers.StrConvHttpHandler,Microshaoft.HttpHandlers"/>

  </httpHandlers>

 </system.web>

</configuration>

4.新建文本文件,更名为 sina.aspx ,保存到 IIS 站点或某虚拟目录下 sina.aspx

5.这里只考虑了 get 请求! post 请求请参阅:

补充 宝玉 之《URL欺骗之以假乱真!》之 POST 方法提交数据 之 处理!

http://blog.csdn.net/playyuer/archive/2005/02/25/301895.aspx

6. 了解 IHttpHandler 接口参阅:

ms-help://MS.NETFrameworkSDKv1.1.CHS/cpref/html/frlrfSystemWebIHttpHandlerClassProcessRequestTopic.htm

*/

namespace Microshaoft.HttpHandlers

{

 using System.IO;

 using System.Net;

 using System.Web;

 using System.Text;

 public class StrConvHttpHandler : IHttpHandler

 {

  static void Main()

  {

   StrConvHttpHandler x = new StrConvHttpHandler();

   string s = "http://www.sina.com.cn";

   s = x.HttpGetRequestReponse(s);

   s = Microsoft.VisualBasic.Strings.StrConv(s, Microsoft.VisualBasic.VbStrConv.TraditionalChinese, System.Globalization.CultureInfo.CurrentCulture.LCID);

   //s = TCSCConvert(s);

   System.Console.WriteLine(s);

  }

  public void ProcessRequest(HttpContext context)

  {

   string s = context.Request.RawUrl.ToLower();

   //s = s.Replace("http://localhost:8081","http://210.72.237.99/BOTH/1.2/Blog/portal");

   s = "http://210.72.237.99/BOTH/1.2/Blog/portal/Default.aspx";

   s = "http://www.sina.com.cn";

   s = this.HttpGetRequestReponse(s);

   s = Microsoft.VisualBasic.Strings.StrConv(s, Microsoft.VisualBasic.VbStrConv.TraditionalChinese, System.Globalization.CultureInfo.CurrentCulture.LCID);

   //s = TCSCConvert(s);

   context.Response.Write(s);

  }

  public bool IsReusable

  {

   get

   {

    return true;

   }

  }

  public string HttpGetRequestReponse(string URL)

  {

   HttpWebRequest hwrq = (HttpWebRequest) WebRequest.Create(URL);

   HttpWebResponse hwrp = (HttpWebResponse) hwrq.GetResponse();

   Stream S = hwrp.GetResponseStream();

   StreamReader sr = new StreamReader(S,this.GetEncoding(hwrp));

   string ss = null;

   string s;

   while( (s = sr.ReadLine())!=null )

   {

    ss += s + "\r\n";

   }

   S.Close();

   S = null;

   return ss;

  }

  public Encoding GetEncoding(HttpWebResponse response)

  {

   string name = response.ContentEncoding;

   Encoding code = Encoding.Default;

   if (name == "")

   {

    string contentType = response.ContentType;

    if (contentType.ToLower().IndexOf("charset") != -1)

    {

     name = contentType.Substring(contentType.ToLower().IndexOf("charset=") + "charset=".Length);

    }

   }

   if (name != "")

   {

    try

    {

     code = Encoding.GetEncoding(name);

    }

    catch{}

   }

   return code;

  }

  //经测试,用 COM Word Object 转的效果全好,但是慢!

  //private static Word.DocumentClass _d;

  private static string TCSCConvert(string s)

  {

   if (s.Length > 0)

   {

    //    if (_d == null)

    //    {

    //     _d = new Word.DocumentClass();

    //    }

    //    _d.Content.Text = s;

    //    _d.Content.TCSCConverter(

    //     Word.WdTCSCConverterDirection.wdTCSCConverterDirectionSCTC,

    //     true,

    //     true

    //     );

    //    s = _d.Content.Text;

   }

   return s;

  }

 }

}

//==========================================

二:

如果是自己写的 Asp.Net 的页面还有更好的方法:

自己实现一个类继承于 Stream,作为 HttpResponse 的 Filter 属性:

namespace Microshaoft //(\bin\XXX.dll,也可直接放在 Page 的 codebehind)

{

 using System;

 using System.Text;

 using System.Text.RegularExpressions;

 using System.IO;

 using System.Web;

 public class StrConvFilter : Stream

 {

  private Stream _sink;

  private long _position;

  public StrConvFilter(Stream sink)

  {

   _sink = sink;

  }

  public override bool CanRead

  {

   get

   {

    return true;

   }

  }

  public override bool CanSeek

  {

   get

   {

    return true;

   }

  }

  public override bool CanWrite

  {

   get

   {

    return true;

   }

  }

  public override long Length

  {

   get

   {

    return 0;

   }

  }

  public override long Position

  {

   get

   {

    return _position;

   }

   set

   {

    _position = value;

   }

  }

  public override long Seek(long offset, System.IO.SeekOrigin direction)

  {

   return _sink.Seek(offset, direction);

  }

  public override void SetLength(long length)

  {

   _sink.SetLength(length);

  }

  public override void Close()

  {

   _sink.Close();

  }

  public override void Flush()

  {

   _sink.Flush();

  }

  public override int Read(byte[] buffer, int offset, int count)

  {

   return _sink.Read(buffer, offset, count);

  }

  public override void Write(byte[] buffer, int offset, int count)

  {

   if (HttpContext.Current.Response.ContentType == "text/html")

   {

    Encoding e = Encoding.GetEncoding(HttpContext.Current.Response.Charset);

    string s = e.GetString(buffer, offset, count);

    s = Microsoft.VisualBasic.Strings.StrConv(s, Microsoft.VisualBasic.VbStrConv.TraditionalChinese, System.Globalization.CultureInfo.CurrentCulture.LCID);

    _sink.Write(e.GetBytes(s), 0, e.GetByteCount(s));

   }

   else

   {

    _sink.Write(buffer, offset, count);

   }

  }

 }

}

然后:

private void Page_Load(object sender, System.EventArgs e)

{

 // 在此处放置用户代码以初始化页面

 this.Response.Filter = new Microshaoft.StrConvFilter(this.Response.Filter);

}