jsp 用urlrewrite 实现URL 重写

    是否看到别人的网站网址名都不带后缀名比较酷，比如qq空间的地址，其实用urlrewrite这个包很容易就实现了。
    下面是使用说明：

1.下载urlrewrite,官方下载地址：http://tuckey.org/urlrewrite/dist/urlrewritefilter-2.6.zip

2.解压缩文件，压缩包内文件copy到项目中(压缩包位置 -> 项目位置)：

urlrewrite-2.6.0-src/webapp/WEB-INF/lib/urlrewrite-2.6.0.jar -> WebRoot/WEB-INF/lib/urlrewrite-2.6.0.jar

urlrewrite-2.6.0-src/webapp/WEB-INF/urlrewrite.xml -> WebRoot/WEB-INF/urlrewrite.xml
3.将以下代码添加到web.xml里
Xml代码 
<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> 
    </filter-mapping> 

4.修改urlrewrite.xml
Xml代码 
<?xml version="1.0" encoding="utf-8"?>  
<!DOCTYPE urlrewrite PUBLIC "-//tuckey.org//DTD UrlRewrite 2.6//EN"  
"http://tuckey.org/res/dtds/urlrewrite2.6.dtd">  
 
<!--  
 
Configuration file for UrlRewriteFilter  
http://tuckey.org/urlrewrite/  
 
-->  
<urlrewrite>  
    <rule>  
        <from>^/([a-z]+)$</from>  
        <to type= "forward" >/world.jsp?id=$1</to>  
    </rule>  
    <rule> 
        <from>^/world/(.*)$</from> 
        <to>/world.jsp?tid=$1</to> 
    </rule> 
    <rule> 
        <from>^/(.*).html$</from> 
        <to>/test1/$1.jsp</to> 
    </rule> 
     
    <outbound-rule>  
        <note>  
        The outbound-rule specifies that when response.encodeURL is called (if you are using JSTL c:url)  
        the url /rewrite-status will be rewritten to /test/status/.  
         
        The above rule and this outbound-rule means that end users should never see the  
        url /rewrite-status only /test/status/ both in thier location bar and in hyperlinks  
        in your pages.  
        </note>  
        <from>/rewrite-status</from>  
        <to>/test/status/</to>  
    </outbound-rule> 
</urlrewrite>  


rule是url重写规则,from是显示出来的地址,to是映射的实际地址,$1是重写参数,可以为多个,()里是匹配的正则表达式.
好了,在项目中新建world.jsp,启动tomcat,输入
http://localhost:8080/mysite/world/1

mysite是你的项目名

实际上访问的是http://localhost:8080/mysite/world.jsp?tid=1
这样就简单的实现了伪静态的效果