Java 为什么不是'；我的Spring Boot api是否使用正确的用户名/密码验证MySQL数据库中的用户？

我是spring boot的新手，我正在制作一个用于练习的web应用程序。我正在尝试为我的Spring Boot项目设置身份验证。我在学习一个教程，他们提到在

UserDetailsService

（我的实现）中，我应该自动连接返回现有用户的JPA存储库。用户名匹配。一旦UserDetails对象被传递回AuthenticationProvider，我就用调试器逐行跟踪程序的流程，它似乎遇到了“InvocationTargetException”，然而，我的控制台stacktrace上没有显示任何内容。 我可能做错了什么

另一个问题是，应该在哪里验证密码？

authenticationmanager

是否在内部处理该问题

身份验证控制器：

@RestController
@RequestMapping("api/auth")
public class Auth {
    
    @Autowired
    private AuthService authService;

    
    @PostMapping("login")
    public AuthenticationResponse login(@RequestBody LoginRequest loginRequest) {
        System.out.println("part 1");
        return authService.login(loginRequest);
    } 

授权服务：

@AllArgsConstructor
@Service
public class AuthService {

    private final PasswordEncoder passwordEncoder;
    private final HunterRepository hunterRepo;
    private final AuthenticationManager authenticationManager;

    public AuthenticationResponse login(LoginRequest loginRequest) {
        org.springframework.security.core.Authentication authenticate = 
               authenticationManager.authenticate(new 
                          UsernamePasswordAuthenticationToken(loginRequest.getUsername(),
                                          loginRequest.getPassword()));

           System.out.println("check 2: " + authenticate.isAuthenticated());
           SecurityContextHolder.getContext().setAuthentication(authenticate);
           String token = jwtProvider.generateToken(authenticate);
           System.out.println("this is token: " + token);
           return new AuthenticationResponse(token, loginRequest.getUsername());
    }

SecurityConfig：

@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {

    private final UserDetailsServiceImpl userDetailsService;

    public SecurityConfig(UserDetailsServiceImpl userDetailsService){
      this.userDetailsService = userDetailsService;
    }   

    @Bean(BeanIds.AUTHENTICATION_MANAGER)
    @Override
    public AuthenticationManager authenticationManagerBean() throws Exception {
        return super.authenticationManagerBean();
    }
    
    @Override
    public void configure(HttpSecurity httpSecurity) throws Exception {
        httpSecurity.cors().and()
        .csrf().disable()
        .authorizeRequests()
        .antMatchers(HttpMethod.POST, "/api/**")
        .permitAll()
        .antMatchers("/api/**")
        .permitAll()
        .antMatchers(HttpMethod.GET, "/api/posts/")
        .permitAll()
        .antMatchers(HttpMethod.GET, "/api/posts/**")
        .permitAll()
        // change the bottom matchers to my site's urls
        .antMatchers("/v2/api-docs",
                "/configuration/ui",
                "/swagger-resources/**",
                "/configuration/security",
                "/swagger-ui.html",
                "/webjars/**")
        .permitAll()
        .anyRequest()
        .authenticated();
    }
    
    @Autowired
    public void configureGlobal(AuthenticationManagerBuilder authenticationManager) throws Exception 
   {
        authenticationManager.userDetailsService(userDetailsService)
        .passwordEncoder(passwordEncoder());
    }
    
    @Bean
    PasswordEncoder passwordEncoder() {
        /*
         * passwordEncoder is part of spring security. it is used to encrypt passwords with a 
         * BCrypt hashing algorithm
         */
        return new BCryptPasswordEncoder();
    }
}

UserDetailsServiceImpl

@Service
@AllArgsConstructor
public class UserDetailsServiceImpl implements UserDetailsService {
    
    private final HunterRepository hunterRepo;

    @Override
    @Transactional
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        System.out.println("check 2: " + username);
        Optional<Hunter> userOptional = hunterRepo.findByUsername(username);

        System.out.println("check 3, is value present?" + userOptional.isPresent());
        
//      Hunter hunter = userOptional
//          .orElseThrow(() -> new UsernameNotFoundException("No user " +
//                          "Found with username : " + username));
        Hunter hunter = null;
        if (userOptional.isPresent())
        {
            System.out.println("userOptional is present");
            hunter = userOptional.get();
        }
        else
        {
            System.out.println("userOptional is not present");
            throw new UsernameNotFoundException("no user found with username");
        }
            
            return new org.springframework.security
                    .core.userdetails.User(hunter.getUsername(), hunter.getPassword(),
                    hunter.isEnabled(), true, true,
                    true, getAuthorities("USER"));
    }
    
      private Collection<? extends GrantedAuthority> getAuthorities(String role) {
            //return Collections.singletonList(new SimpleGrantedAuthority(role));
          return Arrays.asList(new SimpleGrantedAuthority(role));
        }

}

@服务
@AllArgsConstructor
公共类UserDetailsServiceImpl实现UserDetailsService{
私人最终亨特雷波公寓；
@凌驾
@交易的
public UserDetails loadUserByUsername（字符串用户名）引发UsernameNotFoundException{
System.out.println（“检查2:+用户名）；
可选userOptional=hunterRepo.findByUsername（用户名）；
System.out.println（“检查3，值是否存在？”+userOptional.isPresent（））；
//Hunter=userOptional
//.orelsetrow（（）->新用户名NotFoundException（“无用户”）+
//使用用户名找到：“+username”）；
Hunter=null；
if（userOptional.isPresent（））
{
System.out.println（“存在用户可选”）；
hunter=userOptional.get（）；
}
其他的
{
System.out.println（“userOptional不存在”）；
抛出新的UsernameNotFoundException（“找不到用户名为的用户”）；
}
返回新的org.springframework.security
.core.userdetails.User（hunter.getUsername（），hunter.getPassword（），
hunter.isEnabled（），真的，真的，
正确，GetAuthories（“用户”）；
}
private Collection能否显示
InvocationTargetException
的堆栈跟踪？尤其是由
节引起的最后一个
。@dan1st堆栈跟踪没有抛出任何错误。我应该显示什么？如果调试器显示它，请在出现它的位置添加一个try-catch并执行
e.printStackTrace（）
。
public interface HunterRepository extends CrudRepository<Hunter, Integer>{
    Optional<Hunter> findByUsername(String username);
}