Category: Feign Client

2021
0
SpringSpring Cloud

Spring Cloud - 30. Micro Service간 통신 ErrorDecoder 구현

목차 Spring Cloud - 30. Micro Service간 통신 ErrorDecoder 구현 Spring Cloud - 29. Micro Service간 통신 Feign client 예외 처리 Spring Cloud - 28. Micro Service간 통신 Feign client Spring Cloud - 27. Micro Service간 통신 ErrorDecoder 구현public class FeignErrorDecoder implements ErrorDecoder { @Override public Exception decode(String methodKey, Response response) { switch (response.status()) { case 400: break; case 404: if (methodKey.contains("getOrders")) { return new ResponseStatusException(HttpStatus.valueOf(response.status()) , "User's orders is empty."); } break; default: return new Exception(response.reason()); } return null; }} @SpringBootApplication@EnableDiscoveryClient@EnableFeignClients@Slf4jpublic class UserServiceApplication { public static void main(String[] args){ SpringApplication.run(UserServiceApplication.class, args); } @Bean public BCryptPasswordEncoder passwordEncoder() throws UnknownHostException { return new BCryptPasswordEncoder(); } @Bean @LoadBalanced public RestTemplate getRestTemplate(){ return new RestTemplate(); } @Bean public Logger.Level feignLoggerLevel(){ return Logger.Level.FULL; } @Bean public FeignErrorDecoder getFeignErrorDecoder(){ return new FeignErrorDecoder(); }} token: expiration_time: 84600000 secret: user_token_native_application_changedgateway: ip: 192.168.123.106order_service: url: http://ORDER-SERVICE/order-service/%s/orders exception: orders_is_empty: User's orders is empty. @Component@RequiredArgsConstructorpublic class FeignErrorDecoder implements ErrorDecoder { private final Environment env; @Override public Exception decode(String methodKey, Response response) { switch (response.status()) { case 400: break; case 404: if (methodKey.contains("getOrders")) { return new ResponseStatusException(HttpStatus.valueOf(response.status()) , env.getProperty("order_service.exception.orders_is_empty")); } break; default: return new Exception(response.reason()); } return null; }}

0
SpringSpring Cloud

Spring Cloud - 29. Micro Service간 통신 Feign client 예외 처리

목차 Spring Cloud - 30. Micro Service간 통신 ErrorDecoder 구현 Spring Cloud - 29. Micro Service간 통신 Feign client 예외 처리 Spring Cloud - 28. Micro Service간 통신 Feign client Spring Cloud - 27. Micro Service간 통신 User serviceserver: port: 0spring: application: name: user-service h2: console: enabled: true settings: web-allow-others: true datasource: username: sa password: driver-class-name: org.h2.Driver url: jdbc:h2:mem:testdb rabbitmq: host: 127.0.0.1 port: 5672 username: guest password: guesteureka: instance: instanceId: ${spring.application.name}:${spring.application.instance_id:${random.value}} client: register-with-eureka: true fetch-registry: true service-url: defaultZone: http://localhost:8761/eurekagreeting: message: Welcome to the Simple E-commerce.management: endpoints: web: exposure: include: refresh, health, beans, busrefreshlogging: level: com.example.userservice.client: DEBUG#token:# expiration_time: 84600000# secret: user_token @SpringBootApplication@EnableDiscoveryClient@EnableFeignClients@Slf4jpublic class UserServiceApplication { public static void main(String[] args){ SpringApplication.run(UserServiceApplication.class, args); } @Bean public BCryptPasswordEncoder passwordEncoder() throws UnknownHostException { return new BCryptPasswordEncoder(); } @Bean @LoadBalanced public RestTemplate getRestTemplate(){ return new RestTemplate(); } @Bean public Logger.Level feignLoggerLevel(){ return Logger.Level.FULL; }} @Overridepublic UserDto getUserByUserId(String userId) { UserEntity userEntity = userRepository.findByUserId(userId); if (userEntity == null) throw new UsernameNotFoundException("User not found"); UserDto userDto = new ModelMapper().map(userEntity, UserDto.class); List<ResponseOrder> orderList = null; try { orderList = orderServiceClient.getOrders(userId); } catch (FeignException ex) { log.error(ex.getMessage()); } userDto.setOrders(orderList); return userDto;}

0
SpringSpring Cloud

Spring Cloud - 28. Micro Service간 통신 Feign client

목차 Spring Cloud - 30. Micro Service간 통신 ErrorDecoder 구현 Spring Cloud - 29. Micro Service간 통신 Feign client 예외 처리 Spring Cloud - 28. Micro Service간 통신 Feign client Spring Cloud - 27. Micro Service간 통신 User service// https://mvnrepository.com/artifact/org.springframework.cloud/spring-cloud-starter-openfeignimplementation 'org.springframework.cloud:spring-cloud-starter-openfeign' @SpringBootApplication@EnableDiscoveryClient@EnableFeignClients@Slf4jpublic class UserServiceApplication { public static void main(String[] args){ SpringApplication.run(UserServiceApplication.class, args); } @Bean public BCryptPasswordEncoder passwordEncoder() throws UnknownHostException { return new BCryptPasswordEncoder(); } @Bean @LoadBalanced public RestTemplate getRestTemplate(){ return new RestTemplate(); }} FeignClient의 name속성에 들어가는 값은 eureka 서버에 등록 돼 있는 Application 이름이다. @FeignClient(name = "order-service")public interface OrderServiceClient { @GetMapping("/order-service/{userId}/orders") List<ResponseOrder> getOrders(@PathVariable String userId);} @Overridepublic UserDto getUserByUserId(String userId) { UserEntity userEntity = userRepository.findByUserId(userId); if (userEntity == null) throw new UsernameNotFoundException("User not found"); UserDto userDto = new ModelMapper().map(userEntity, UserDto.class); List<ResponseOrder> orderList = orderServiceClient.getOrders(userId); userDto.setOrders(orderList); return userDto;}