struts中使用UrlRewriteFilter

配置struts中要加上

<dispatcher>REQUEST</dispatcher>  

 <dispatcher>FORWARD</dispatcher>  

 <dispatcher>INCLUDE</dispatcher>

表示先经过UrlRewriteFilter过滤之后，传到struts

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> <welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>

<!-- struts2过滤器前配置 -重写Url-->

<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>

<!-- struts2过滤器-->
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
<dispatcher>REQUEST</dispatcher>
<dispatcher>FORWARD</dispatcher>
<dispatcher>INCLUDE</dispatcher>
</filter-mapping>

</web-app>
之后可以，配置urlrewrite，http://httpd.apache.org/docs/2.0/misc/rewriteguide.html，有好多例子

<?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">

<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.

-->

<!--
<rule>
<from>/jsp/2$</from>
<to>/index2.jsp</to>
</rule>
-->
<rule>
<from>/page$</from>
<to>/pageAction!displayHomepage</to>
</rule>
<rule>
<from>/user$</from>
<to>/pageAction!displayUserHomepage.action</to>
</rule>

</urlrewrite>

但是有一个地方需要注意的是action配置的时候
<action name="pageAction" class="pageAction" method="displayUserHomepage">
<exception-mapping result="error" exception="java.lang.Exception"/>
<result name="error">/index3.jsp</result>
</action>如上，会报错 The requested resource (There is no Action mapped for namespace / and action name index3.jsp.) is not available.

找了好久，原来是配置struts时加上了，之后，就把index3.jsp当做是了一个action

<dispatcher>REQUEST</dispatcher>  

 <dispatcher>FORWARD</dispatcher>  

 <dispatcher>INCLUDE</dispatcher>

解决的方法是，配置struts时，

将

<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
<dispatcher>REQUEST</dispatcher>
<dispatcher>FORWARD</dispatcher>
<dispatcher>INCLUDE</dispatcher>
</filter-mapping>改成,这样之后过滤action后缀的，不会处理jsp

<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*.action</url-pattern>
<dispatcher>REQUEST</dispatcher>
<dispatcher>FORWARD</dispatcher>
<dispatcher>INCLUDE</dispatcher>
</filter-mapping>