HttpModule 实现 ASP.Net (*.aspx) 中文简繁体的自动转换,不用修改原有的任何代码,直接部署即可!

http://Microshaoft.cnblogs.com/archive/2005/03/22/123365.aspx#288944
于是根据该网友的建议:
用 HttpModule 实现了 ASP.Net (*.aspx) 中文简繁体的自动转换!
思路相当简单!
Global.asax 的 Codebehind 的 Application_BeginRequest 的事件处理函数也应可以实现!
HttpHandler 是不能实现的,因为它是"截流"!


效果不错!可以处理任意 ASP.Net 站点、虚拟目录!不用修改原有的任何代码!
代码如下:
StrConvHttpModule.cs
/**//*
csc.exe /t:library StrConvHttpModule.cs /r:C:\windows\Microsoft.NET\Framework\v1.1.4322\Microsoft.VisualBasic.dll
*/
namespace Microshaoft.HttpModules
{
using System;
using System.Web;
using System.Collections;

using Microshaoft.IO;

public class StrConvHttpModule : IHttpModule
{
public string ModuleName
{
get
{
return "StrConvHttpModule";
}
}

public void Init(HttpApplication application)
{
application.BeginRequest += (new EventHandler(this.Application_BeginRequest));
}

private void Application_BeginRequest(object sender, EventArgs e)
{
HttpApplication application = (HttpApplication) sender;
HttpContext context = application.Context;
context.Response.Filter = new StrConvFilterStream(context.Response.Filter);
}

public void Dispose()
{
}
}
}

namespace Microshaoft.IO
{
using System;
using System.IO;
using System.Web;
using System.Text;
using System.Globalization;

using Microsoft.VisualBasic;

public class StrConvFilterStream : Stream
{
private Stream _sink;
private long _position;

public StrConvFilterStream(Stream sink)
{
this._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 this._position;
}
set
{
this._position = value;
}
}

public override long Seek(long offset, SeekOrigin direction)
{
return this._sink.Seek(offset, direction);
}

public override void SetLength(long length)
{
this._sink.SetLength(length);
}

public override void Close()
{
this._sink.Close();
}

public override void Flush()
{
this._sink.Flush();
}

public override int Read(byte[] buffer, int offset, int count)
{
return this._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 = Strings.StrConv(s, VbStrConv.TraditionalChinese, CultureInfo.CurrentCulture.LCID);
this._sink.Write(e.GetBytes(s), 0, e.GetByteCount(s));
}
else
{
this._sink.Write(buffer, offset, count);
}
}
}
}

将 StrConvHttpModule.cs 编译为 StrConvHttpModule.dll:
csc.exe /t:library StrConvHttpModule.cs /r:C:\windows\Microsoft.NET\Framework\v1.1.4322\Microsoft.VisualBasic.dll

以 Microsoft .NET Framework SDK 自带的 QuickStart 教程站点为例
http://localhost/quickstart/
修改 quickstart 虚拟目录下的 web.config, 在 ... 区域添加如下配置节:






将 StrConvHttpModule.dll 复制到 该虚拟目录的 bin\ 目录下
,以及该虚拟目录下的各级子虚拟目录下的 bin\ 目录下