本文主要是介绍Java17 --- SpringSecurity之OAuth2，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
一、OAuth2
1.1、使用github以授权码方式
1.1.1、注册应用程序
1.1.2、测试代码
pom依赖
<dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-oauth2-client</artifactId></dependency>spring:security:oauth2:client:registration:github:client-id: Ov23liQnQPka0x1qX6ZIclient-secret: 278f3ad4ecdd8dad4b318d7bd8d33f2bb9428019@Controller
public class IndexController {@GetMapping("/")public String index(Model model, @RegisteredOAuth2AuthorizedClient OAuth2AuthorizedClient authorizedClient,@AuthenticationPrincipal OAuth2User oauth2User) {model.addAttribute("userName", oauth2User.getName());model.addAttribute("clientName", authorizedClient.getClientRegistration().getClientName());model.addAttribute("userAttributes", oauth2User.getAttributes());return "index";}
}<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="https://www.thymeleaf.org" xmlns:sec="https://www.thymeleaf.org/thymeleaf-extras-springsecurity5">
<head><title>Spring Security - OAuth 2.0 Login</title><meta charset="utf-8" />
</head>
<body>
<div style="float: right" th:fragment="logout" sec:authorize="isAuthenticated()"><div style="float:left"><span style="font-weight:bold">User: </span><span sec:authentication="name"></span></div><div style="float:none"> </div><div style="float:right"><form action="#" th:action="@{/logout}" method="post"><input type="submit" value="Logout" /></form></div>
</div>
<h1>OAuth 2.0 Login with Spring Security</h1>
<div>You are successfully logged in <span style="font-weight:bold" th:text="${userName}"></span>via the OAuth 2.0 Client <span style="font-weight:bold" th:text="${clientName}"></span>
</div>
<div> </div>
<div><span style="font-weight:bold">User Attributes:</span><ul><li th:each="userAttribute : ${userAttributes}"><span style="font-weight:bold" th:text="${userAttribute.key}"></span>: <span th:text="${userAttribute.value}"></span></li></ul>
</div>
</body>
</html>
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