CAS单点登录 - 跳转至登录

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我是靠谱客的博主阳光石头，最近开发中收集的这篇文章主要介绍CAS单点登录 - 跳转至登录，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>

<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="UTF-8">
<title>SSO单点登录</title>
</head>
<body>
<h1>欢迎访问单点登录系统</h1>
<form action="doLogin" method="post">
<input type="text" name="username" placeholder="请输入用户名"/>
<input type="password" name="password" placeholder="请输入密码"/>
<input type="hidden" name="returnUrl" th:value="${returnUrl}">
<input type="submit" value="提交登录"/>
</form>
<span style="color:red" th:text="${errmsg}"></span>
</body>
</html>


thymeleaf:
mode: HTML
encoding: UTF-8
prefix: classpath:/templates/
suffix: .html

@GetMapping("/login")
public String login(String returnUrl,
Model model,
HttpServletRequest request,
HttpServletResponse response) {
model.addAttribute("returnUrl", returnUrl);
// 1. 获取userTicket门票，如果cookie中能够获取到，证明用户登录过，此时签发一个一次性的临时票据并且回跳
String userTicket = getCookie(request, COOKIE_USER_TICKET);
boolean isVerified = verifyUserTicket(userTicket);
if (isVerified) {
String tmpTicket = createTmpTicket();
return "redirect:" + returnUrl + "?tmpTicket=" + tmpTicket;
}
// 2. 用户从未登录过，第一次进入则跳转到CAS的统一登录页面
return "login";
}