问题备忘：Spring Cloud OAuth2.0 开发过程中碰到的问题

问题： Spring Security – There is no PasswordEncoder mapped for the id “null”

解决方法一：
问题解决：https://blog.csdn.net/Hello_World_QWP/article/details/81811462

解决方法二：
因为5.x版本新增了多种密码加密方式，必须指定一种，比如这样解决

 @Bean
 public static NoOpPasswordEncoder passwordEncoder() {
   return (NoOpPasswordEncoder) NoOpPasswordEncoder.getInstance();
 }

问题2：调用接口/com-oauth/oauth/check_token失败

返回错误码：

{
  "timestamp": "2019-07-10T02:57:43.818+0000",
  "status": 403,
  "error": "Forbidden",
  "message": "Forbidden",
  "path": "/com-oauth/oauth/check_token"
}

解决方法一：
设置 security.tokenKeyAccess(“permitAll()”).checkTokenAccess(“permitAll()”);

@Configuration
@EnableAuthorizationServer
public class OAuth2AuthorizationServer extends AuthorizationServerConfigurerAdapter {

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

问题3： 在使用密码模式时，抛出异常：o.s.s.o.provider.endpoint.TokenEndpoint : Handling error: UnsupportedGrantTypeException, Unsupported grant type: password

解决方法：配置AuthenticationManager

@Configuration
@EnableAuthorizationServer
public class OAuth2AuthorizationServer extends AuthorizationServerConfigurerAdapter {


   // 用户认证
   @Autowired
   private AuthenticationManager authenticationManager;

   @Override
   public void configure(AuthorizationServerEndpointsConfigurer endpoints) throws Exception {
       super.configure(endpoints);
       // 密码模式必须有这个参数
       endpoints.authenticationManager(authenticationManager);
   }
}

问题4：Field authenticationManager in cn.springcloud.book.OAuthConfiguration required a bean of type ‘org.springframework.security.authentication.AuthenticationManager’ that could not be found

解决方法：
集成WebSecurityConfigurerAdapter 类，并重写方法authenticationManager()，使用 @Bean注解标记

@ComponentScan
@Configuration
public class MyWebSecurityConfigurerAdapter extends WebSecurityConfigurerAdapter {

    @Bean(name = BeanIds.AUTHENTICATION_MANAGER)
    @Override
    protected AuthenticationManager authenticationManager() throws Exception {
        return super.authenticationManager();
    }
}

问题5： 在passwod模式下，执行刷新token时，抛出异常Handling error: IllegalStateException, UserDetailsService is required.

执行以下命令，抛出异常Handling error: IllegalStateException, UserDetailsService is required

 curl -i -X POST -u 'clientapp2:112233'  http://10.216.33.211:10808/com-oauth/oauth/token -H "accept: application/json" -d 'grant_type=refresh_token&refresh_token=b610dfa9-2ee4-4214-bc57-f6b2937d4b27'

解决方法：
在AuthorizationServerConfigurerAdapter 中配置UserDetailsService对象

@Configuration
@EnableAuthorizationServer
public class OAuth2AuthorizationServer extends AuthorizationServerConfigurerAdapter {

    @Autowired
    private MyUserDetailsService myUserDetailsService;

    @Override
    public void configure(AuthorizationServerEndpointsConfigurer endpoints) throws Exception {
        // 执行token刷新需要带上此参数
        endpoints.userDetailsService(myUserDetailsService);
    }
}

问题6：不支持form表单提交

执行命令：

curl -X POST "http://10.216.33.211:10808/com-oauth/oauth/token" -d "grant_type=client_credentials&scope=read_contacts&client_id=clientapp&client_secret=112233"

返回错误：

{"timestamp":"2019-07-11T02:27:29.962+0000","status":401,"error":"Unauthorized","message":"Unauthorized","path":"/com-oauth/oauth/token"} 

解决方法：
支持Form表达提交： security.allowFormAuthenticationForClients();

@Configuration
@EnableAuthorizationServer
public class OAuth2AuthorizationServer extends AuthorizationServerConfigurerAdapter {

    @Override
    public void configure(AuthorizationServerSecurityConfigurer security) throws Exception {
        super.configure(security);
        security.tokenKeyAccess("permitAll()").checkTokenAccess("permitAll()");
        //允许表单认证
        security.allowFormAuthenticationForClients();
    }

 
}

执行命令：

 curl -X POST "http://10.216.33.211:10808/com-oauth/oauth/token" -d "grant_type=client_credentials&scope=read_contacts&client_id=clientapp&client_secret=112233"

返回正常结果：

{"access_token":"35ae4576-f7b3-480e-aeff-eee7ea2ce803","token_type":"bearer","refresh_token":"0493963a-22f5-4cff-8b50-3cc5da3577a6","expires_in":197,"scope":"read_contacts"}