struts2动作方法通配符

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>
	<!-- 覆盖掉Struts2一些常量的默认值 -->
    <constant name="struts.enable.DynamicMethodInvocation" value="false" />
    <constant name="struts.devMode" value="true" />
    <constant name="struts.action.extension" value="action,,do"></constant>
    <constant name="struts.configuration.xml.reload" value="true"></constant>
	<package name="default" namespace="/hello/xxx" extends="struts-default">
		<action name="test1">
			<result>/index.jsp</result>
		</action>
	</package>
	<package name="p1" extends="struts-default">
		<action name="test2" class="com.opensymphony.xwork2.ActionSupport" method="execute">
			<result name="success" type="dispatcher">/index.jsp</result>
		</action>
		<action name="test3" class="com.itheima.actions.ActionDemo1" method="doSomething">
			<result>/index.jsp</result>
		</action>
		<!--
		<action name="testAdd" class="com.itheima.actions.ActionDemo1" method="addMethod">
			<result>/index.jsp</result>
		</action>
		<action name="testUpdate" class="com.itheima.actions.ActionDemo1" method="updateMethod">
			<result>/index.jsp</result>
		</action>
		 -->
		 <!-- 动作方法通配符 -->
		 <!--
		 约定优于配置
		 路径：http://localhost:8080/day24_03struts2_constant/CustomerAction_addCustomer.action
		 	动作类：CustomerAction 动作方法：addCustomer 结果转向的页面：addCustomer.jsp
		  -->
		<action name="*_*" class="com.itheima.actions.{1}" method="{2}">
			<result>/{2}.jsp</result>
		</action>
	</package>
</struts>

注意第十行，value="action,,do“ 中间两个逗号，这样配置可以在访问路径的时候省略后面的.action

CustomerAction.java:

package com.itheima.actions;

import com.opensymphony.xwork2.ActionSupport;

public class CustomerAction extends ActionSupport{
	public String addCustomer(){
		System.out.println("addCustomer");
		return SUCCESS;
	}
	public String delCustomer(){
		System.out.println("delCustomer");
		return SUCCESS;
	}
	public String updateCustomer(){
		System.out.println("updateCustomer");
		return SUCCESS;
	}
}