OAuth2 Client<\/li>\n<\/ul>\n3.2 Configure application.yml<\/h3>\n
After the project is created, set the Google OAuth2 client ID and client secret in the src\/main\/resources\/application.yml<\/code> file.<\/p>\nspring:\n security:\n oauth2:\n client:\n registration:\n google:\n client-id: YOUR_CLIENT_ID\n client-secret: YOUR_CLIENT_SECRET\n scope: profile, email\n redirect-uri: \"{baseUrl}\/login\/oauth2\/code\/{registrationId}\"\n provider:\n google:\n authorization-uri: https:\/\/accounts.google.com\/o\/oauth2\/auth\n token-uri: https:\/\/oauth2.googleapis.com\/token\n user-info-uri: https:\/\/www.googleapis.com\/oauth2\/v3\/userinfo\n user-info-authentication-method: header\n<\/code><\/pre>\n3.3 Configure WebSecurityConfigurerAdapter<\/h3>\n
We configure Spring Security to enable OAuth2 support. We will extend WebSecurityConfigurerAdapter<\/code> and define the necessary configurations.<\/p>\nimport org.springframework.context.annotation.Configuration;\nimport org.springframework.security.config.annotation.web.builders.HttpSecurity;\nimport org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;\nimport org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;\n\n@Configuration\n@EnableWebSecurity\npublic class SecurityConfig extends WebSecurityConfigurerAdapter {\n @Override\n protected void configure(HttpSecurity http) throws Exception {\n http\n .authorizeRequests()\n .antMatchers(\"\/\", \"\/login\").permitAll()\n .anyRequest().authenticated()\n .and()\n .oauth2Login()\n .loginPage(\"\/login\")\n .defaultSuccessUrl(\"\/home\", true);\n }\n}\n<\/code><\/pre>\n3.4 Add Login Controller<\/h3>\n
Add a controller to redirect after login.<\/p>\n
import org.springframework.stereotype.Controller;\nimport org.springframework.web.bind.annotation.GetMapping;\n\n@Controller\npublic class HomeController {\n \n @GetMapping(\"\/\")\n public String index() {\n return \"index\"; \/\/ Return index page view\n }\n\n @GetMapping(\"\/home\")\n public String home() {\n return \"home\"; \/\/ Return home page view\n }\n}\n<\/code><\/pre>\n3.5 Create HTML Views<\/h3>\n
Create two HTML files to be used in Spring Boot. Generate the src\/main\/resources\/templates\/index.html<\/code> file.<\/p>\n<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n <meta charset=\"UTF-8\">\n <title>OAuth Login<\/title>\n<\/head>\n<body>\n <h1>Welcome!<\/h1>\n <a href=\"\/oauth2\/authorization\/google\">Login with Google<\/a>\n<\/body>\n<\/html>\n<\/code><\/pre>\nNext, create the src\/main\/resources\/templates\/home.html<\/code> file.<\/p>\n<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n <meta charset=\"UTF-8\">\n <title>Home<\/title>\n<\/head>\n<body>\n <h1>Hello, <span th:text=\"${#authentication.details.name}\"><\/span>!<\/h1>\n <a href=\"\/logout\">Logout<\/a>\n<\/body>\n<\/html>\n<\/code><\/pre>\n3.6 Run the Application<\/h3>\n
When you build and run the project, you will see a Google login link on the application’s main page. Clicking this will redirect you to the Google login page, and upon successful login, you will return to the home page.<\/p>\n
4. Conclusion<\/h2>\n
We have successfully implemented login and logout features using Spring Boot and OAuth2. OAuth2 enables secure sharing of data between various services, providing an enhanced user experience. Additionally, you can choose an authentication method that fits your business logic by utilizing various features of OAuth2.<\/p>\n
If you want more resources and information, please refer to the official Spring Boot documentation and various materials on OAuth2. Feel free to leave your questions in the comments, and I will do my best to help with what I know. Thank you!<\/p>\n
<\/body><\/p>\n","protected":false},"excerpt":{"rendered":"
Hello! In this blog post, we will learn how to implement secure login and logout features using OAuth 2.0 with Spring Boot. We will start by understanding what OAuth is and its basic concepts, followed by a detailed look at how to use OAuth2 in Spring Boot through practical code examples. 1. What is OAuth? … \ub354 \ubcf4\uae30 “Spring Boot Backend Development Course, Implementing Login and Logout with OAuth2, What is OAuth”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[131],"tags":[],"class_list":["post-33015","post","type-post","status-publish","format-standard","hentry","category-spring-boot-backend-development"],"yoast_head":"\nSpring Boot Backend Development Course, Implementing Login and Logout with OAuth2, What is OAuth - \ub77c\uc774\ube0c\uc2a4\ub9c8\ud2b8<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/atmokpo.com\/w\/33015\/\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Spring Boot Backend Development Course, Implementing Login and Logout with OAuth2, What is OAuth - \ub77c\uc774\ube0c\uc2a4\ub9c8\ud2b8\" \/>\n<meta property=\"og:description\" content=\"Hello! 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