在<tomcat安装目录>\webapps中创建了一个filter目录。
并创建filter\WEB-INF\web.xml文件，内容如下：
<?xml version="1.0" encoding="ISO-8859-1"?>
<web-app 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"
version="2.5">
<filter>
<filter-name>FirstFilter</filter-name>
<filter-class>FirstFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>GB2312</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>FirstFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<filter-mapping>
<filter-name>FirstFilter</filter-name>
<servlet-name>default</servlet-name>
</filter-mapping>
<filter-mapping>
<filter-name>FirstFilter</filter-name>
<url-pattern>/test.html</url-pattern>
</filter-mapping>
</web-app>
重启 tomcat服务器，tomcat服务器命令行窗口出现如下错误：
2009-2-14 23:09:49 org.apache.catalina.core.StandardContext start
严重: Error filterStart
2009-2-14 23:09:49 org.apache.catalina.core.StandardContext start
严重: Context [/filter] startup failed due to previous errors
请高手指点一下这是什么原因？
该如何解决？
------解决方案--------------------
你的 <filter-mapping> 多了两个改一下：
- XML code
<?xml version="1.0" encoding="ISO-8859-1"?> <web-app 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" version="2.5"> <filter> <filter-name>FirstFilter </filter-name> <filter-class>FirstFilter </filter-class> <init-param> <param-name>encoding </param-name> <param-value>GB2312 </param-value> </init-param> </filter> <filter-mapping> <filter-name>FirstFilter </filter-name> <url-pattern>/* </url-pattern> </filter-mapping> </web-app>