spring security自定义用户登入

1.设置security的配置类

@Configuration
public class SecurityConfig extends WebSecurityConfigurerAdapter {
   
    
    @Autowired
    private UserDetailsService userDetailsService;

	//注入数据源
    @Autowired
    private DataSource dataSource;
    //配置对象
    @Bean
    public PersistentTokenRepository persistentTokenRepository(){
   
        JdbcTokenRepositoryImpl jdbcTokenRepository = new JdbcTokenRepositoryImpl();
        jdbcTokenRepository.setDataSource(dataSource);
        return jdbcTokenRepository;
    }     

    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
   
        auth.userDetailsService(userDetailsSe