Struts2(9):为<action>指定method属性_struts actionmethod-优快云博客

本文链接：https://blog.youkuaiyun.com/confirmAname/article/details/9156107

对于一个表单有多个提交按钮并且分别对应不同的处理逻辑的情形，Struts2还提供了一种处理方法，即将一个Action处理类定义成多个逻辑Action。如果在配置<action>元素时，为它指定method属性，则可以让Action调用指定方法，而不是默认的execute方法来处理用户请求。

login_register.jsp:

<%@ page contentType="text/html;charset=UTF-8" pageEncoding="UTF-8"%>
<html>
<head>
<title>Insert title here</title>
</head>
<body>

<script type="text/javascript">

function register(){
var targetForm=document.forms[0];
targetForm.action="register";
}

function login(){
var targetForm=document.forms[0];
targetForm.action="login";
}

</script>

<form action="login_register" method="post">
姓名:<input type="text" name="username"><br>
密码:<input type="password" name="password"><br>
<input type="submit" value="登录" onclick="login();">
<input type="submit" value="注册" onclick="register();">
</form>
</body>
</html>

ok.jsp:

<%@ page contentType="text/html;charset=UTF-8" pageEncoding="UTF-8"%>
<html>
<head>
<title>Insert title here</title>
</head>
<body>
<%
Object obj=session.getAttribute("username");
if(obj==null){
	response.sendRedirect("login_register.jsp");
}
%>
${loginInfo} ${registerInfo}<br>
welcome ${username}...
</body>
</html>

struts.xml:

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
    "-//Apache Software Foundation//DTD Struts Configuration 2.1.7//EN"
    "http://struts.apache.org/dtds/struts-2.1.7.dtd">

<struts>

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

<action name="login" class="action.LoginRegister" method="login">
<result name="success" type="dispatcher">/ok.jsp</result>
<result name="login" type="redirect">/login_register.jsp</result>
</action>

<action name="register" class="action.LoginRegister" method="register">
<result name="success" type="dispatcher">/ok.jsp</result>
<result name="login" type="redirect">/login_register.jsp</result>
</action>

</package>

</struts>

LoginRegister.java:

public class LoginRegister extends ActionSupport{

	private String username;
	private String password;
	
	public String getUsername() {
		return username;
	}
	public void setUsername(String username) {
		this.username = username;
	}
	public String getPassword() {
		return password;
	}
	public void setPassword(String password) {
		this.password = password;
	}
	public String login(){
		System.out.println("login...");
		if(getUsername().equals("scott")&& getPassword().equals("tiger")){
			ActionContext.getContext().getSession().put("username",getUsername());
			ServletActionContext.getRequest().setAttribute("loginInfo","login success !");
			return "success";
		}
		return "login";
	}
	
	public String register(){
		System.out.println("register...");
		if(getUsername().equals("scott")&& getPassword().equals("tiger")){
			ActionContext.getContext().getSession().put("username",getUsername());
			ServletActionContext.getRequest().setAttribute("registerInfo","register success !");
			return "success";
		}
		return "login";
	}
	
}