教你如何实现ＵＲＬ重写(转发)

最新推荐文章于 2021-05-15 20:56:36 发布

Amiao999

最新推荐文章于 2021-05-15 20:56:36 发布

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本文介绍如何使用URLRewriter库在ASP.NET应用中进行URL重写，通过实例展示了如何配置并实施重写规则，使旧链接可以无缝跳转到新的页面。

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以下是你一个简单示例
一．新建一个空的网页项目程序：

二．将以下代码写在单独的类中，然后在页的ＣＳ文件中引入

using System;
using System.IO;
using System.Web;
using System.Web.UI;
namespace URL
{
public class OLPage : Page
{
public OLPage()
{ }
protected override void Render(HtmlTextWriter writer)
{
if (writer is System.Web.UI.Html32TextWriter)
{
writer = new FormFixerHtml32TextWriter(writer.InnerWriter);
}
else
{
writer = new FormFixerHtmlTextWriter(writer.InnerWriter);
}
base.Render(writer);
}
}

internal class FormFixerHtml32TextWriter : System.Web.UI.Html32TextWriter
{
private string _url; // 假的URL

internal FormFixerHtml32TextWriter(TextWriter writer)
: base(writer)
{
_url = HttpContext.Current.Request.RawUrl;
}

public override void WriteAttribute(string name, string value, bool encode)
{
if (_url != null && string.Compare(name, "action", true) == 0)
{
value = _url;
}
base.WriteAttribute(name, value, encode);

}
}

internal class FormFixerHtmlTextWriter : System.Web.UI.HtmlTextWriter
{
private string _url;
internal FormFixerHtmlTextWriter(TextWriter writer)
: base(writer)
{
_url = HttpContext.Current.Request.RawUrl;
}

public override void WriteAttribute(string name, string value, bool encode)
{
if (_url != null && string.Compare(name, "action", true) == 0)
{
value = _url;
}
base.WriteAttribute(name, value, encode);
}
}

}
三．以ＷＥＢ配置文件写成如下：
<?xml version="1.0"?>

<configuration>
<configSections>
<section name="RewriterConfig"

type="URLRewriter.Config.RewriterConfigSerializerSectionHandler, URLRewriter"/>
</configSections>
<RewriterConfig>
<Rules>
<RewriterRule>
<LookFor>~/d(\d+)\.aspx</LookFor>
<SendTo>~/default.aspx?id=$1</SendTo>
</RewriterRule>
<RewriterRule>
<LookFor>~/d(\d+)\.html</LookFor>
<SendTo>~/default.aspx?id=$1</SendTo>
</RewriterRule>
</Rules>
</RewriterConfig>
<system.web>
<httpHandlers>
<add verb="*" path="*.aspx"

type="URLRewriter.RewriterFactoryHandler, URLRewriter"/>
<add verb="*" path="*.html" type="URLRewriter.RewriterFactoryHandler, URLRewriter"/>
</httpHandlers>
<compilation debug="true"/></system.web>
</configuration>

四．将URLRewriter.dll文件下载，并将其放到要目录的ＢＩＮ目录内

五．将要实现转发的页的ＣＳ文件的将继承改为url.OLPage
例：
using System;
using System.Collections.Generic;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using URL;

public partial class _Default :URL.OLPage
{
protected void Page_Load(object sender, EventArgs e)
{
if (Request.QueryString.Count > 0)
{
Response.Write(Request.QueryString["id"].ToString());
}
}
}

最后，可以在将d4646.html或d454.aspx的页面转发到default.aspx?id=4646或default.aspx?id454
例：http://localhost:4875/URLRewriteTest2/d4546.html
实际为：http://localhost:4875/URLRewriteTest2/default.aspx?id=4546