自定义Interceptor(webwork)

package com.interceptor;

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

public class PojoInterceptor implements Interceptor{

	public void destroy() {
		
	}

	public void init() {
		
	}

	public String intercept(ActionInvocation invocation) throws Exception {
		String result = null;
		first(invocation);
		result = invocation.invoke();
		last(invocation);
		return result;
	}
	
	
	public void first(ActionInvocation invocation){
		System.out.println("first");
	}

	public void last(ActionInvocation invocation){
		System.out.println("last");
	}
}

<xwork>
	<include file="webwork-default.xml" />
	<package name="default" extends="webwork-default">
		<interceptors>
			<interceptor name="PojoInterceptor" class="com.interceptor.PojoInterceptor"/>
		</interceptors>
		<global-results>
			<result name="global">/global.jsp</result>
		</global-results>

		<action name="login" class="com.skyvision.web.LoginAction">
		
			<result>/index.jsp</result>
			<result name="login">/index1.jsp</result>
			<result name="input">/index.jsp</result>
			<result name="global">/global.jsp</result>
			<interceptor-ref name="PojoInterceptor"/>
		</action>


	</package>


</xwork>