Spring Cloud Feign 請求動態URL

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:

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


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

    @RequestLine("GET")
    ResponseDto getSomething(URI baseUri, XxxDto xxxDto);
  
}

ClientCaller類

@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) throws URISyntaxException {
        return xxxFeignClient.notifySomething(new URI(url), dto);
    }


    public String test() throws URISyntaxException {
        String url = "http://localhost:9104/";
        return xxxFeignClient.getSomething(new URI(url));

    }


}

 

測試成功. 有點蛋疼.

 

參考鏈接:

https://stackoverflow.com/questions/43733569/how-can-i-change-the-feign-url-during-the-runtime