URLRewriter实现伪静态
URLREwriter组件
下载地址:http://www.chx99.cn/file/URLRewriter.rar
实现url重写的步骤：
首先，通过上述的网址将URLREwriter组件下载到本地，放到项目下的/WEB-INF/lib目录下
再从网上找到如下的配置文件urlrewrite.xml，如下：（放在/WEB-INF目录下）
<?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>
<note>
The rule means that requests to /test/status/ will be redirected to /rewrite-status
the url will be rewritten.
</note>
<from>/test/status/</from>
<to type="redirect">%{context-path}/rewrite-status</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>
<!--
INSTALLATION
in your web.xml add...
<filter>
<filter-name>UrlRewriteFilter</filter-name>
<filter-class>org.tuckey.web.filters.urlrewrite.UrlRewriteFilter</filter-class>
<init-param>
<param-name>logLevel</param-name>
<param-value>WARN</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>UrlRewriteFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
EXAMPLES
Redirect one url
<rule>
<from>/some/old/page.html</from>
<to type="redirect">/very/new/page.html</to>
</rule>
Redirect a directory
<rule>
<from>/some/olddir/(.*)</from>
<to type="redirect">/very/newdir/$1</to>
</rule>
Clean a url
<rule>
<from>/products/([0-9]+)</from>
<to>/products/index.jsp?product_id=$1</to>
</rule>
eg, /products/1234 will be passed on to /products/index.jsp?product_id=1234 without the user noticing.
Browser detection
<rule>
<condition name="user-agent">Mozilla/[1-4]</condition>
<from>/some/page.html</from>
<to>/some/page-for-old-browsers.html</to>
</rule>
eg, will pass the request for /some/page.html on to /some/page-for-old-browsers.html only for older
browsers whose user agent srtings match Mozilla/1, Mozilla/2, Mozilla/3 or Mozilla/4.
-->
</urlrewrite>
接下类就可以进行伪静态的实现了：
在上述的配置文件中加入下面代码：（缩减版）
<?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>
<note>
The rule means that requests to /test/status/ will be redirected to /rewrite-status
the url will be rewritten.
</note>
<from>/test/status/</from>
<to type="redirect">%{context-path}/rewrite-status</to>
</rule>
<rule>
<from>/student.html/([a-z]+)</from>
<to>/student.do?cmd=$1</to>
</rule>
<rule>
<from>/student2.html/([a-z]+)_([0-9]+)</from>
<to>/student.do?cmd=$1&id=$2</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>
最后在你的项目中就可以将路径写成伪静态的样子，如：
<a href="student.html/list">查看学生列表</a>
通过urlrewrite.xml的解析
<rule>
<from>/student.html/([a-z]+)</from>
<to>/student.do?cmd=$1</to>
</rule>
就将该路径转化为：
student.do?cmd=list (这是真实的请求路径)
又如：
<a href="student2.html/loadedit_2">查看学生列表</a>
通过urlrewrite.xml的解析
<rule>
<from>/student2.html/([a-z]+)_([0-9]+)</from>
<to>/student.do?cmd=$1&id=$2</to>
</rule>
就将该路径转化为：
student.do?cmd=loadedit&id=2 (这是真实的请求路径)
由于伪路径经常带有“/”，会将页面路径嵌套，所以建议使用绝对路径
在jsp页面上写上：
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
则上面的路径可以写成：
<a href="<%=basePath%>student2.html/loadedit_2">查看学生列表</a>