关于在Java中使用URLRewrite的问题

Question

今天用urlrewrite对URL做重写，用的jar包版本是3.2.0,按照要求配置了urlrewrite.xml,总是没起作用呀！不知道怎么回事，帮忙看下。
urlrewerite.xml代码如下：<rule>
   <note></note>
   <from>/page/news/news_details_([0-9]+)</from>
   <to>/news.do?method=newsinfo&amp;nid=$1</to>
</rule>
    
 <outbound-rule>
      <from>/news.do?method=newsinfo&amp;nid=([0-9]+)$</from>
      <to>/page/news/news_details_$1</to>
 </outbound-rule>
页面代码：<c:url var="news_url" value="/news.do?method=newsinfo&nid=${n.newId }" />
    <a href="${news_url }" title="点击查看新闻 ${n.newTitle }">${n.newTitle }</a>

Answer 1

struts2的过滤器配置有加入以下两项了吗，不加然会导致404错误
<dispatcher>REQUEST</dispatcher>   
<dispatcher>FORWARD</dispatcher>

Answer 2

加了，是一样的结果！关键是我URL地址根本没有被重写，还是原先的！
这两行代码是什么意思呢？

Answer 3

不介意的话把你的web.xml代码贴出来看下.......问题应该出现在你web.xml吧

Answer 4

以下是web.xml<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="2.5" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee   http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
  <servlet>
  
    <servlet-name>action</servlet-name>
    <servlet-class>org.apache.struts.action.ActionServlet</servlet-class>
    <init-param>
      <param-name>config</param-name>
      <param-value>/WEB-INF/struts-config.xml</param-value>
    </init-param>
    <init-param>
      <param-name>debug</param-name>
      <param-value>3</param-value>
    </init-param>
    <init-param>
      <param-name>detail</param-name>
      <param-value>3</param-value>
    </init-param>
    <load-on-startup>0</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>action</servlet-name>
    <url-pattern>*.do</url-pattern>
  </servlet-mapping>
 
  <filter>  
        <filter-name>urlRewriteFilter</filter-name>  
        <filter-class>org.tuckey.web.filters.urlrewrite.UrlRewriteFilter</filter-class> 
   </filter>  
   <filter-mapping>  
      <filter-name>urlRewriteFilter</filter-name>  
      <url-pattern>/*</url-pattern>
      <dispatcher>REQUEST</dispatcher>   
      <dispatcher>FORWARD</dispatcher>
   </filter-mapping>     
   <filter>
   <filter-name>loginFilter</filter-name>
   <filter-class>com.joye.filter.LoginFilter</filter-class>
  </filter>
  
   <filter-mapping>
   <filter-name>loginFilter</filter-name>
   <url-pattern>/admin/*</url-pattern>
  </filter-mapping> 
  
  <filter>  
       <filter-name>encodingFilter</filter-name>  
       <filter-class>com.joye.filter.CharacterSetEncodingFilter</filter-class>  
  </filter> 
  
  <filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>*.do</url-pattern>
 </filter-mapping>


  <welcome-file-list>
   <welcome-file>index.jsp</welcome-file>
    <welcome-file>page/index.jsp</welcome-file>
    <welcome-file>admin/login.jsp</welcome-file>
  </welcome-file-list><error-page>
<error-code>404</error-code>
<location>/notFontPage.jsp</location>
</error-page>
<!--  <error-page>
<error-code>500</error-code>
<location>/error.jsp</location>
</error-page>-->
  
</web-app>

Answer 5

<filter>  
        <filter-name>urlRewriteFilter</filter-name>  
        <filter-class>org.tuckey.web.filters.urlrewrite.UrlRewriteFilter</filter-class> 
   </filter>  
   <filter-mapping>  
      <filter-name>urlRewriteFilter</filter-name>  
      <url-pattern>/*</url-pattern>
      <dispatcher>REQUEST</dispatcher>   
      <dispatcher>FORWARD</dispatcher>
   </filter-mapping> 

这一段为web.xml中配置的URLRewrite

Answer 6

你web.xml可以说是没问题的，但严格来说还是存在问题的。例如：过滤器的排版顺序，这一点值得注意。
再此你url没办法重写原因在于你<outbound-rule>
      <from>/news.do?method=newsinfo&amp;nid=([0-9]+)$</from>
      <to>/page/news/news_details_$1</to>
 </outbound-rule问题就出在/news.do?这里，“？”得给它转义，也就是/new.do\?method=.....

Answer 7

那页面上这样写对吗？
<c:url var="news_url" value="/news.do?method=newsinfo&nid=${n.newId }" />
<a href="${news_url }" title="点击查看新闻 ${n.newTitle }">${n.newTitle}</a>这样，是鼠标放上面连接就了还是点了之后呢？

Answer 8

<to>/page/news/news_details_$1</to>这里要怎么写？我这是news_details_$1随便写的，IE显示404

Answer 9

我用的是Struts2,
<dispatcher>REQUEST</dispatcher> 
<dispatcher>FORWARD</dispatcher>
这两行是放在Struts的过滤器里面，如果放在urlrewrite的过滤器会报404错误<filter>
   <filter-name>struts2</filter-name>
   <filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class> 
   </filter>
   <!-- encoding filter-mapping-->
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>

<!-- struts2 filter-mapping-->
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
<dispatcher>REQUEST</dispatcher>    
        <dispatcher>FORWARD</dispatcher> 
</filter-mapping> <filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>*.do</url-pattern>
</filter-mapping>我没有用JSTL技术，在JSP是用response.encodeURL()
<a href="<%=response.encodeURL("news.do?id=1111") %>">view</a>
鼠标放上去已经是显示重写后的链接了

Answer 10

鼠标放上去就能看到你伪装的链接了。你页前台的代码不用改，改的是你的配置文件里头的
<rule>
   <note></note>
   <from>/page/news/news_details_([0-9]+)</from>
   <to>/news.do?method=newsinfo&amp;nid=$1</to>
</rule>
    
 <outbound-rule>
      <from>/news.do\?method=newsinfo&amp;nid=([0-9]+)$</from>
      <to>/page/news/news_details_$1</to>
 </outbound-rule>看看红色的地方与你之前的地方那个不同。你改一下，再试试

Answer 11

红色显示不出来呀。呵呵！
也就是"?" 问号前面加了个”\“符号而已。转义<rule>
   <note></note>
   <from>/page/news/news_details_([0-9]+)</from>
   <to>/news.do?method=newsinfo&amp;nid=$1</to>
</rule>
    
 <outbound-rule>
      <from>/news.do\?method=newsinfo&amp;nid=([0-9]+)$</from>
      <to>/page/news/news_details_$1</to>
 </outbound-rule>