实现基于Spring Boot和OAuth2的单点登录(SSO)系统 大家好,我是微赚淘客系统3.0的小编,是个冬天不穿秋裤,天冷也要风度的程序猿!
单点登录(SSO)系统是现代应用程序中常见的身份认证解决方案,它允许用户使用一组凭据(用户名和密码)登录到多个关联的应用程序而无需重复认证。本文将详细介绍如何利用Spring Boot和OAuth2框架来实现一个基本的单点登录系统,并演示其在实际应用中的应用。
1. 搭建Spring Boot应用
首先,我们创建一个基本的Spring Boot应用作为SSO系统的基础。
package cn.juwatech.sso;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class SSOApplication {
public static void main(String[] args) {
SpringApplication.run(SSOApplication.class, args);
}
}
2. 配置OAuth2认证服务器
接下来,配置Spring Security和OAuth2来实现认证服务器。
package cn.juwatech.sso.config;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {
private final UserDetailsService userDetailsService;
public SecurityConfig(UserDetailsService userDetailsService) {
this.userDetailsService = userDetailsService;
}
@Override
protected void configure(HttpSecurity http) throws Exception {
http
.authorizeRequests()
.antMatchers("/oauth/token").permitAll()
.anyRequest().authenticated()
.and()
.csrf().disable();
}
@Override
protected void configure(AuthenticationManagerBuilder auth) throws Exception {
auth.userDetailsService(userDetailsService).passwordEncoder(new BCryptPasswordEncoder());
}
}
3. 配置OAuth2客户端
在应用中配置OAuth2客户端,允许其他应用通过OAuth2协议进行认证和授权。
package cn.juwatech.sso.config;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.oauth2.client.registration.ClientRegistration;
import org.springframework.security.oauth2.client.registration.ClientRegistrationRepository;
import org.springframework.security.oauth2.core.AuthorizationGrantType;
import org.springframework.security.oauth2.core.ClientAuthenticationMethod;
@Configuration
public class OAuth2ClientConfig {
private static String CLIENT_ID = "your_client_id";
private static String CLIENT_SECRET = "your_client_secret";
private static String AUTHORIZATION_URI = "http://localhost:8080/oauth/authorize";
private static String TOKEN_URI = "http://localhost:8080/oauth/token";
private static String REDIRECT_URI = "{baseUrl}/login/oauth2/code/{registrationId}";
@Autowired
public void configure(ClientRegistrationRepository clients) throws Exception {
ClientRegistration registration = ClientRegistration.withRegistrationId("custom")
.clientId(CLIENT_ID)
.clientSecret(CLIENT_SECRET)
.clientAuthenticationMethod(ClientAuthenticationMethod.BASIC)
.authorizationGrantType(AuthorizationGrantType.AUTHORIZATION_CODE)
.redirectUriTemplate(REDIRECT_URI)
.authorizationUri(AUTHORIZATION_URI)
.tokenUri(TOKEN_URI)
.scope("read", "write")
.build();
clients.addRegistration("custom", registration);
}
}
4. 创建认证用户服务
定义一个简单的用户服务,用于验证用户身份。
package cn.juwatech.sso.service;
import org.springframework.security.core.userdetails.User;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.stereotype.Service;
@Service
public class UserDetailsServiceImpl implements UserDetailsService {
@Override
public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
// 此处应该从数据库或其他存储中获取用户信息
// 这里演示一个简单的用户验证过程
if ("user".equals(username)) {
return User.withUsername(username)
.password("{bcrypt}$2a$10$uNVPZcCoeVbVsBv6ufr/ZuIbB2BtIT2frM1gE.6kKgdmLs0wS9Nk6")
.roles("USER")
.build();
} else {
throw new UsernameNotFoundException("User not found with username: " + username);
}
}
}
5. 编写控制器和页面
最后,创建一个简单的控制器和页面来演示SSO登录流程。
package cn.juwatech.sso.controller;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
@Controller
public class HomeController {
@GetMapping("/")
public String home() {
return "home";
}
@GetMapping("/login")
public String login() {
return "login";
}
}
结论
通过本文的实例,我们深入探讨了如何利用Spring Boot和OAuth2框架构建一个基本的单点登录(SSO)系统。从搭建Spring Boot应用到配置OAuth2认证服务器和客户端,再到实现用户认证和授权,这些步骤为实现安全且高效的身份验证提供了基础。
本文著作权归聚娃科技微赚淘客系统开发者团队,转载请注明出处!