<?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>

  <!--   採用注解的方式 -->

  	<constant name="struts.enable.DynamicMethodInvocation" value="true" />

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

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

        <!-- struts2捕获action类异常 -->

        <global-results>

			<result name="error">/error.jsp</result>

		</global-results>

		<global-exception-mappings>

			<exception-mapping result="error" exception="java.lang.Exception"></exception-mapping>

		</global-exception-mappings>

    	<action name="link" class="com.test.action.LoginAction">

    	    <result>/result.jsp</result>

    	</action>

    	<action name="linkIOC" class="com.test.action.LoginActionIOC">

    	    <result>/result.jsp</result>

    	</action>

    </package>

    <!-- Add packages here -->

</struts>

測试类

package com.test.action;

import java.util.Map;

import com.opensymphony.xwork2.ActionContext;

import com.opensymphony.xwork2.ActionSupport;

public class LoginAction extends ActionSupport{

	/**

	 *

	 */

	private static final long serialVersionUID = 1L;

	private Map request;

	private Map session;

	private Map application;

	public LoginAction()

	{

		System.out.println("loginaction构造函数！");

		request=(Map) ActionContext.getContext().get("request");

		session=ActionContext.getContext().getSession();

		application=ActionContext.getContext().getApplication();

	}

	public String execute()

	{

		//System.out.println(request);

		//System.out.println(session);

		//System.out.println(application);

		int i=100/0;/*这个地方会抛出异常，默认情况下struts2是不会捕获异常，直接抛出*/

		request.put("msg", "欢迎你！");

		return SUCCESS;

	}

}

输出结果