Feign 請求動態URL

注意事項

1. FeignClient 中不要寫url, 使用 @RequestLine修飾方法
2. 調用地方必須引入 FeignClientConfiguration, 必須有Decoder, Encoder
3. 調用類必須以構建函數(Constructor) 的方式注入 FeignClient 類
4. 傳入URL作爲參數;

代碼如下:

FeignClient類:

@CompileStatic
@FeignClient(name = "xxxxClient")
public interface XxxFeignClient {


    @RequestLine("POST")
    ResponseDto notifySomething(URI baseUri, ApproveNotifyDto notifyDto);

    /**
     * 
     * @param uri
     * @param queryMap: {userId: userId}
     * @return
     */
    @RequestLine("GET")
    ResponseDto getSomething(URI baseUri, @QueryMap Map<String, String> queryMap)
  
}

ClientCaller類：

@CompileStatic
@Slf4j
@Component
@Import(FeignClientsConfiguration.class)
public class CallerService {

    private XxxFeignClient xxxFeignClient

    @Autowired
    public CallerService(Decoder decoder, Encoder encoder) {
        xxxFeignClient = Feign.builder()
                //.client(client)
                .encoder(encoder)
                .decoder(decoder)
                .target(Target.EmptyTarget.create(XxxFeignClient.class))
    }

    public ResponseDto notifySomething(String url, XxxxDto dto) {
        return xxxFeignClient.notifySomething(URI.create(url), dto)
    }

    /**
     * @param url: http://localhost:9104/
     * @param userId 
     */
    public String getSomething(String url, String userId) {
        return xxxFeignClient.getSomething(URI.create(url), ["userId": userId])
    }

}