关于<s:submit>中action属性失效的原因

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看了几个struts2的demo,有个关于表单多个submit的,可以通过<s:submit>设置不同的action属性来达到不同提交的目的。

但是再测试的时候,发现不管怎么设置,都是提交的<s:form>的action。


struts.xml

<!DOCTYPE struts PUBLIC"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN""http://struts.apache.org/dtds/struts-2.0.dtd"><struts>   <package name="default" extends="struts-default">        <action name="*User" class="vaannila.UserAction" method="{1}">            <result name="success">/success.jsp</result>        </action>          </package></struts>


页面文件

index.jsp

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"    pageEncoding="ISO-8859-1"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><%@taglib uri="/struts-tags" prefix="s" %><html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Insert title here</title></head><body><s:form action="User.action"><s:submit name="action:addUser" value="Add" /><s:submit action="updateUser" value="Update" /><s:submit action="deleteUser" value="Delete" /></s:form> </body></html>
success.jsp
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"    pageEncoding="ISO-8859-1"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Insert title here</title></head><body>${message}</body></html>

package vaannila;import com.opensymphony.xwork2.ActionSupport;public class UserAction extends ActionSupport{private String message;public String execute(){message = "Inside execute method";System.out.println(message);return SUCCESS;}public String add(){message = "Inside add method";System.out.println(message);return SUCCESS;}public String update(){message = "Inside update method";System.out.println(message);return SUCCESS;}public String delete(){message = "Inside delete method";System.out.println(message);return SUCCESS;}public String getMessage() {return message;}public void setMessage(String message) {this.message = message;}}

不管怎么修改<s:submit>的属性,都是提交的User.action

而单独在浏览器用链接访问addUser.action deleteUser.action updateUser.action 可用。
这是什么原因呢?思考无果,先记录一下。



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