struts2实现登陆功能

struts2实现登陆主要是为了学习获取请求参数,以及向页面回传数据

jsp代码

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
   <%
    String path = request.getContextPath() + "/";
   %>
<!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>
    <form action="<%=path %>user/login.action" method="post">
        账号:<input type="text" name="account"><br>
        密码:<input type="password" name="pwd"><br>
        <input type="submit" value="登陆"><br>
    </form>

</body>
</html>

action类代码

package com.xingxue.action;

public class UserAction {
    public String account;
    public String pwd;

    public String msg;

    public String userLogin() {

        if("admin".equals(account) && "123123".equals(pwd)) {
            msg = "loign ok!";
            return "OK";
        }else {
            msg = "loign no!";
            return "NO";
        }
    }

}

主要:此处只要保证属性为public,名字和页面上传的参数名相同,strus2会自动将请求参数注入到我们的action的属性中,及获取到了请求参数

跳转页面代码

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
   <%
    String path = request.getContextPath() + "/";
   %>
<!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>

    nononoon
    ${msg }<br>
    ${account }<br>
    ${pwd }<br>

</body>
</html>

只要是action的属性 在跳转页面都可以进行获取,此处struts2在跳转页面的时候会自动将参数传入request对象中,然后在跳转页面

xml代码

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转载自blog.csdn.net/sky274548769/article/details/81164430