1.Strus2系统拦截器中,timer拦截器可以实现输出Action的执行时间,素以也可以称timer拦截器为耗时拦截器。下面就在实例中使用该拦截器。从而观察Aciont的执行时间。
action
struts.xml
--访问
http://localhost:8080/Struts2_TimerInterceptor/timerInterceptor.action
--控制台打印的结果
信息: Executed action [//timerInterceptor!execute] took 2656 ms.
action
package com.sh.action;
import com.opensymphony.xwork2.ActionSupport;
public class TimerInterceptorAction extends ActionSupport {
public String execute(){
try {
Thread.sleep(1000);
} catch (Exception e) {
e.printStackTrace();
}
return SUCCESS;
}
}
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"> <struts> <!-- 如果 注解的action配置改变时候不需要重新启动tomcate --> <constant name="struts.devMode" value="false"/> <constant name="struts.convention.classes.reload" value="true" /> <package name="default" extends="struts-default"> <action name="timerInterceptor" class="com.sh.action.TimerInterceptorAction"> <result>/index.jsp</result> <interceptor-ref name="timer"/> </action> </package> </struts>
--访问
http://localhost:8080/Struts2_TimerInterceptor/timerInterceptor.action
--控制台打印的结果
信息: Executed action [//timerInterceptor!execute] took 2656 ms.