前端代码如下：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>登录</title>
<script src="/js/jquery-3.3.1.min.js"></script>
</head>
<body>
<h1>登录</h1>
<form>
<div id="fir"></div>
账号<input type="text" name="username" id="username"><br>
密码<input type="password" name="password" id="password">
<button id="btn">提交</button>
</form>
</body>
<script>
$("#btn").click(function () {
var username = $("#username").val();
var password = $("#password").val();
$.post("/login",{username:username,password:password},function (data) {
alert(data);
if (data===200){
window.location.href = "/index.html";
}else if(data == 201){
window.location.href = "/user.html";
} else {
$("#fir").html("<p style='color: red'>账号密码错误</p>");
alert("账号密码错误!");
window.location.href = "/login.html";
}
});
})
</script>
</html>
后端代码如下
/**
* 处理登录身份认证
* @return
*/
@PostMapping("/login")
public int login(String username, String password){
//获取主体对象
Subject subject = SecurityUtils.getSubject();
try {
subject.login(new UsernamePasswordToken(username,password));
System.out.println("登录通过");
if (subject.hasRole("admin")){
System.out.println(">>>>>>>>>admin欢迎您>>>>>>>>>>>>>>");
return 200;
}else if (subject.hasRole("user")){
System.out.println(">>>>>>>>>user欢迎您>>>>>>>>>>>>>>");
return 201;
}
}catch (UnknownAccountException e){
System.out.println("用户名错误！");
}catch (IncorrectCredentialsException e){
System.out.println("密码错误");
}
return 500;
}
