Spring Security整合OAuth 2.0

Spring Security是一个强大的安全框架，可以帮助我们实现各种安全需求。OAuth 2.0是一种授权框架，可以帮助我们实现授权需求。Spring Security可以与OAuth 2.0集成，以实现更强大的安全性。下面是Spring Security整合OAuth 2.0的步骤：

1.添加依赖项

在pom.xml文件中添加以下依赖项：

<dependency>
    <groupId>org.springframework.security.oauth</groupId>
    <artifactId>spring-security-oauth2</artifactId>
    <version>2.3.7.RELEASE</version>
</dependency>

2.配置授权服务器

在Spring Security配置类中添加以下代码：

@Configuration
@EnableAuthorizationServer
public class AuthorizationServerConfig extends AuthorizationServerConfigurerAdapter {

    @Autowired
    private AuthenticationManager authenticationManager;

    @Autowired
    private UserDetailsService userDetailsService;

    @Autowired
    private PasswordEncoder passwordEncoder;

    @Autowired
    private DataSource dataSource;

    @Override
    public void configure(ClientDetailsServiceConfigurer clients) throws Exception {
        clients.jdbc(dataSource);
    }

    @Override
    public void configure(AuthorizationServerEndpointsConfigurer endpoints) throws Exception {
        endpoints.authenticationManager(authenticationManager)
                .userDetailsService(userDetailsService);
    }

    @Override
    public void configure(AuthorizationServerSecurityConfigurer security) throws Exception {
        security.checkTokenAccess("isAuthenticated()");
    }

    @Bean
    public TokenStore tokenStore() {
        return new JdbcTokenStore(dataSource);
    }

    @Bean
    public ApprovalStore approvalStore() {
        return new JdbcApprovalStore(dataSource);
    }

    @Bean
    public ClientDetailsService clientDetailsService() {
        return new JdbcClientDetailsService(dataSource);
    }

    @Bean
    public DefaultTokenServices tokenServices() {
        DefaultTokenServices tokenServices = new DefaultTokenServices();
        tokenServices.setTokenStore(tokenStore());
        tokenServices.setSupportRefreshToken(true);
        return tokenServices;
    }

    @Bean
    public PasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();
    }

}

3.配置资源服务器

在Spring Security配置类中添加以下代码：

@Configuration
@EnableResourceServer
public class ResourceServerConfig extends ResourceServerConfigurerAdapter {

    @Override
    public void configure(HttpSecurity http) throws Exception {
        http.authorizeRequests()
                .antMatchers("/api/**").authenticated()
                .anyRequest().permitAll();
    }

}

4.配置安全

在Spring Security配置类中添加以下代码：

@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {

    @Autowired
    private UserDetailsService userDetailsService;

    @Autowired
    private PasswordEncoder passwordEncoder;

    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(userDetailsService)
                .passwordEncoder(passwordEncoder);
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.authorizeRequests()
                .antMatchers("/login").permitAll()
                .anyRequest().authenticated()
                .and()
                .formLogin().permitAll()
                .and()
                .logout().permitAll();
    }

    @Bean
    public PasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();
    }

}

5.创建用户

在数据库中创建用户表，并添加一些用户。

以上是Spring Security整合OAuth 2.0的步骤。通过这些步骤，我们可以实现一个安全的授权服务器和资源服务器。