Spring boot自定义OAuth Provider没有返回任何状态代码401的响应

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我试图使用spring boot编写OAuth提供商，但我得到了以下问题，我使用Postman使用/oauth/token，但它返回401 Unauthorized，没有响应。

以下是我试图遵循的例子链接： Spring Cloud Security - OAuth2 Authorization using Jdbc Token Store | Codeaches

在我的需求中，我需要使用MS SQL Server数据库，所以我按照链接中的脚本，尝试转换为SQL Server脚本，这里也是我尝试的代码部分。

WebSecurityConfig.java

@Configuration
@EnableWebSecurity
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {

    @Autowired
    DataSource dataSource;


    @Override
    @Bean("userDetailsService")
    public UserDetailsService userDetailsServiceBean() throws Exception {
        return super.userDetailsServiceBean();
    }

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

    @Bean("authenticationManager")
    @Override
    public AuthenticationManager authenticationManagerBean() throws Exception {
        return super.authenticationManagerBean();
    }

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

        JdbcUserDetailsManagerConfigurer<AuthenticationManagerBuilder> cfg = auth.jdbcAuthentication()
            .passwordEncoder(passwordEncoder()).dataSource(dataSource);

        cfg.getUserDetailsService().setEnableGroups(true);
        cfg.getUserDetailsService().setEnableAuthorities(false);
    }
}

CustomTokenEnhancer.java

public class CustomTokenEnhancer implements TokenEnhancer {

    @Override
    public OAuth2AccessToken enhance(OAuth2AccessToken accessToken, OAuth2Authentication authentication) {
        ((DefaultOAuth2AccessToken) accessToken).setTokenType("Bearer");

        return accessToken;
    }

}

OAuth2AuthorizationServer

@Configuration
@EnableAuthorizationServer
public class OAuth2AuthorizationServer extends AuthorizationServerConfigurerAdapter {

    @Autowired
    private PasswordEncoder passwordEncoder;

    @Autowired
    private AuthenticationManager authenticationManager;

    @Autowired
    private UserDetailsService userDetailsService;

    @Autowired
    DataSource dataSource;

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

    @Bean
    public TokenEnhancer tokenEnhancer() {
        return new CustomTokenEnhancer();
    }

    @Override
    public void configure(AuthorizationServerEndpointsConfigurer endpoints) throws Exception {
        final TokenEnhancerChain tokenEnhancerChain = new TokenEnhancerChain();
        tokenEnhancerChain.setTokenEnhancers(Arrays.asList(tokenEnhancer()));
        endpoints.tokenStore(tokenStore()).authenticationManager(authenticationManager)
            .userDetailsService(userDetailsService);
    }

    @Override
    public void configure(AuthorizationServerSecurityConfigurer oauthServer) throws Exception {
        oauthServer.passwordEncoder(passwordEncoder).tokenKeyAccess("permitAll()")
            .checkTokenAccess("isAuthenticated()");
    }

}

我知道有些代码已经过时了，但根据我的要求，它不能与外界连接（我认为他们不想为此打开防火墙。

回到问题上来，我有什么遗漏吗？

StackOverflow：java - Spring boot custom OAuth Provider didn't return any response with status code 401 - Stack Overflow