我设置了我的spring Boot 应用程序

@EnableJpaRepositories(...)
@EntityScan(...)

它运行良好，连接到数据库，创建表和检索数据所需的。
下一步我决定按照一个例子来介绍社交登录功能和添加配置：

@Configuration
@EnableWebSecurity
public class WebSecurityConfig {

    @Bean
    public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
        http.authorizeRequests()
                .requestMatchers("/", "/login").permitAll()
                .anyRequest().authenticated()
                .and()
                .formLogin().permitAll()
                .loginPage("/login")
                .usernameParameter("email")
                .passwordParameter("pass")
                .successHandler(databaseLoginSuccessHandler)
                .and()
                .oauth2Login()
                .loginPage("/login")
                .userInfoEndpoint()
                .userService(oauth2UserService)
                .and()
                .successHandler(oauthLoginSuccessHandler)
                .and()
                .logout().logoutSuccessUrl("/").permitAll()
                .and()
                .exceptionHandling().accessDeniedPage("/403");
        return http.build();
    }

    @Autowired
    private CustomOAuth2UserService oauth2UserService;

    @Autowired
    private OAuthLoginSuccessHandler oauthLoginSuccessHandler;

    @Autowired
    private DatabaseLoginSuccessHandler databaseLoginSuccessHandler;
}

它停止工作，出现错误：

Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured.

Reason: Failed to determine a suitable driver class

应用程序.yaml提供：

spring:
  datasource:
    driver-class-name=org.postgresql.Driver
    url:jdbc:postgresql://localhost:5432/pennantrace
    username:admin
    password:123456
  jpa:
    hibernate:
      ddl-auto:create
    properties:
      hibernate:
        dialect: org.hibernate.dialect.PostgreSQLDialect
  security:
    oauth2:
      client:
        registration:
          google:
             etc ...

这些配置哪里出错了？