struts2攔截器，攔截指定方法

Struts.xml配置檔案

<?xml version="1.0"encoding="UTF-8"?>

<!DOCTYPE strutsPUBLIC

   "-//Apache Software Foundation//DTD StrutsConfiguration 2.0//EN"

   "http://struts.apache.org/dtds/struts-2.0.dtd">

<struts>

    <!-- 開發模式 -->

    <constant name="struts.devMode"value="true" />

    <!-- spring管理struts -->

    <constant name="struts.objectFactory"value="spring" />

 

    <package name="struts-shop" extends="struts-default">

 

       <interceptors>

           <!-- 先定義攔截器自己寫的攔截器類 name随便寫 class為全限定名 -->

           <interceptor name="filterInterceptor"class="com.bw.lanjieqi.FilterInterceptor"/>

             

           <!-- 加到自己設定的攔截器棧裡邊去 -->

           <interceptor-stack name="myStack">

<!--   name為上面interceptor标簽裡面定義的name-->

              <interceptor-ref name="filterInterceptor">

                  <!--攔截器黑白名單   includeMethods為攔截的方法 excludeMethods不攔截這倆可以單獨存在 -->

                  <param name="includeMethods">toAdd</param>

                  <param name="excludeMethods">toUpdate</param>

                  <!--指定參數name的值   可以不寫不需要就不寫-->

                  <param name="name">FilterMethod</param>

              </interceptor-ref>

<!--   在自己配置的攔截器基礎上，必須有struts2預設的攔截器，不然出錯 -->

              <interceptor-ref name="defaultStack"></interceptor-ref>

           </interceptor-stack>

 

       </interceptors>

       <!-- 應用攔截器不寫攔截器不生效 -->

       <default-interceptor-ref name="myStack"/>

 

    </package>

 

    <!-- 将其他的struts2的配置檔案加載到主配置檔案struts.xml裡 -->

    <include file="struts-action.xml" />

 

</struts>

 

 

Struts-action.xml配置檔案

<?xml version="1.0"encoding="UTF-8"?>

<!DOCTYPE strutsPUBLIC

   "-//Apache Software Foundation//DTD StrutsConfiguration 2.0//EN"

   "http://struts.apache.org/dtds/struts-2.0.dtd">

<struts>

 

    <!-- extends繼承struts.xml裡的攔截器的配置 -->

    <package name="city"extends="struts-shop">

 

       <action name="city_*"class="com.bw.action.CityAction" method="{1}">

           <result name="list">/WEB-INF/view/list.jsp</result>

           <result name="toAdd">/WEB-INF/view/add.jsp</result>

           <result name="toUpdate">/WEB-INF/view/update.jsp</result>

           <result name="success"type="redirect">city_list</result>

 

          

       </action>

 

 

 

    </package>

 

 

 

</struts>
           

FilterInterceptor

package com.bw.lanjieqi;

 

 

import java.util.Date; 

 

import com.bw.action.CityAction;

import com.opensymphony.xwork2.ActionInvocation; 

importcom.opensymphony.xwork2.interceptor.MethodFilterInterceptor; 

 

publicclass FilterInterceptor extends MethodFilterInterceptor{ 

    //配置檔案中指定的參數可以不用

    private String name; 

     

 

    public String getName() { 

        returnname; 

    } 

 

 

    publicvoid setName(Stringname) { 

        this.name = name; 

    } 

 

    @Override

    protected StringdoIntercept(ActionInvocation invocation) throws Exception { 

        // TODO Auto-generated method stub 

        //擷取要攔截的action  如果不過過多的處理可以不寫

        CityActionfa= (CityAction)invocation.getAction(); 

        System.out.println(name+"攔截器在Action執行前攔截"+new Date()); 

        String result=invocation.invoke(); 

        System.out.println(name+"攔截器在Action執行後攔截"+new Date()); 

        return result; 

    } 

 

}