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本文介绍了一种在Struts2框架中测量Action执行时间的方法。通过配置自定义拦截器，可以在Action执行前后记录时间戳，进而计算出Action执行所需的具体时间。

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如何测定执行一个action所需要的时间

1 struts.xml

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

<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN" "http://struts.apache.org/dtds/struts-2.3.dtd">

   <!--注册拦截器-->

   <interceptors>

     <interceptor name="timeintercept" class="com.time.action.TimeIntercept"></interceptor>

   </interceptors>
   
   <action name="timer" class="com.time.action.TimeAction">

      <result>/success.jsp</result>
   <!引用默认拦截器>
 
     <interceptor-ref name="default-Stack"></interceptor-ref>
      <!-- 引用拦截器 -->

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

   </action>

</package>

</struts>

2 TimeAction.java
package com.time.action;

import com.opensymphony.xwork2.ActionSupport;

public class TimeAction extends ActionSupport {

@Override
public String execute() throws Exception {

	for(int i=0;i<100;i++){

		System.out.println("I love you");

	}

	return SUCCESS;
}

}

3TimeIncepet.java

package com.time.action;

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

public class TimeIntercept extends AbstractInterceptor {

@Override
public String intercept(ActionInvocation invocation) throws Exception {

	long start=System.currentTimeMillis();

	String result=invocation.invoke();

	long end=System.currentTimeMillis();

	System.out.println("之心action所用的时间:"+(end-start)+"ms");	

	return result;

}

}

转载于:https://my.oschina.net/u/2511906/blog/839345