关于<s:submit>中action属性失效的原因

最新推荐文章于 2019-10-19 18:38:24 发布

原创最新推荐文章于 2019-10-19 18:38:24 发布 · 2.5k 阅读

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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。