web.xml和Filter的对应关系

1.在SSM中的web.xml和Filter的对应关系

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

package com.qingfeng.filter;   public class UserFilter implements Filter {     @Override     public void init(FilterConfig filterConfig) throws ServletException {         System.out.println("进入了init方法。。。。。。" );     }     @Override     public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {         System.out.println("进入了doFilter方法。。。。。。" );     }     @Override     public void destroy() {  System.out.println("进入了destroy方法。。。。。。" );     } }

 

2.　过滤器

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19

<!-- 配置过滤器 -->     <filter>         <filter-name>UserFilter</filter-name>         <filter-class>cn.tedu.store.filter. UserFilter </filter-class>           <!--  给对象属性赋值-->           <init-param>             <param-name>serverName1</param-name>             <param-value>http://localhost:8080</param-value>         </init-param>         <init-param>             <param-name>serverName2</param-name>             <param-value>http://localhost:8082</param-value>         </init-param>     </filter>     <filter-mapping>         <filter-name>UserFilter</filter-name> 　　　　　　　　　　<!--这里使用*.do的请求才能filter过滤，允许访问，没有以.do结尾的都要被拦截，不被访问-->         <url-pattern>*.do</url-pattern>     </filter-mapping>

　　

3.web.xml和Filter的对应关系