struts2 自定义拦截器

1.  自定义拦截类 implements  Interceptor实现里面的方法

import com.opensymphony.xwork2.ActionInvocation;
import com.opensymphony.xwork2.interceptor.Interceptor;

public class MyInterceptor implements  Interceptor {

 public void destroy() {
  // TODO Auto-generated method stub
  
 }

 public void init() {
  // TODO Auto-generated method stub
  
 }

 public String intercept(ActionInvocation arg0) throws Exception {
  long start  = System.currentTimeMillis();
  String  r =  arg0.invoke();
  long end  = System.currentTimeMillis();
  System.out.println("action time = " + (end - start));
  return r;
 }
 
 

}

 

2.  修改struts.xml配置文件

<package name="test" namespace="/" extends="struts-default">
 
  <interceptors>
   <interceptor name="my" class="com.awf.interceptor.MyInterceptor"></interceptor>
  </interceptors>

 

  <action name="test" class="com.awf.action.TestAction">
   <result>/test.jsp</result>
   
   <interceptor-ref name="my"></interceptor-ref>
   <interceptor-ref name="defaultStack"></interceptor-ref>
  </action>

 </package>

 

配置好自己的interceptor,还要记得加上默认的<interceptor-ref name="defaultStack"></interceptor-ref>