解决方案是使用@RequestHeader注解，而不是伪造特定的注解

@FeignClient(name="Simple-Gateway")
interface GatewayClient {    
    @RequestMapping(method = RequestMethod.GET, value = "/gateway/test")
    String getSessionId(@RequestHeader("X-Auth-Token") String token);
}

@RequestHeader对我不起作用。起作用的是：

@Headers("X-Auth-Token: {access_token}")
@RequestLine("GET /orders/{id}")
Order get(@Param("id") String id, @Param("access_token") String accessToken);

@HeaderMap、@Header和@Param对我不起作用，下面是在使用FeignClient传递多个头参数时使用@RequestHeader的解决方案

@PostMapping("/api/channelUpdate")
EmployeeDTO updateRecord(
      @RequestHeader Map<String, String> headerMap,
      @RequestBody RequestDTO request);

调用代理的代码如下：

Map<String, String> headers = new HashMap<>();
headers.put("channelID", "NET");
headers.put("msgUID", "1234567889");
ResponseDTO response = proxy.updateRecord(headers,requestDTO.getTxnRequest());

我有这个例子，我使用@HeaderParam代替@RequestHeader：

import rx.Single;

import javax.ws.rs.Consumes;
import javax.ws.rs.HeaderParam;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.core.HttpHeaders;
import javax.ws.rs.core.MediaType;

@Consumes(MediaType.APPLICATION_JSON)
public interface  FeignRepository {

  @POST
  @Path("/Vehicles")
  Single<CarAddResponse> add(@HeaderParam(HttpHeaders.AUTHORIZATION) String authorizationHeader, VehicleDto vehicleDto);

}

您可以使用HttpHeaders。

@PostMapping(path = "${path}", consumes = MediaType.APPLICATION_JSON_VALUE, produces = MediaType.APPLICATION_JSON_VALUE)
ResponseEntity<?> callService(@RequestHeader HttpHeaders headers, @RequestBody Object object);

private HttpHeaders getHeaders() {
  HttpHeaders headers = new HttpHeaders();

  headers.add("Authorization", "1234");
  headers.add("CLIENT_IT", "dummy");
  return headers;
}

我使用@HeaderMap，因为如果你使用Open feign，它看起来非常方便。使用这种方式，你可以动态地传递头键和值。

@Headers({"Content-Type: application/json"})
public interface NotificationClient {

    @RequestLine("POST")
    String notify(URI uri, @HeaderMap Map<String, Object> headers, NotificationBody body);
}

现在创建伪REST客户机来调用服务端点，创建头属性Map并将其传入方法参数。

NotificationClient notificationClient = Feign.builder()
    .encoder(new JacksonEncoder())
    .decoder(customDecoder())
    .target(Target.EmptyTarget.create(NotificationClient.class));

Map<String, Object> headers = new HashMap<>();
headers.put("x-api-key", "x-api-value");

ResponseEntity<String> response = notificationClient.notify(new URI("https://stackoverflow.com/example"), headers, new NotificationBody());

现在讲这个有点晚了，但是如果需要一个强制的、模板化的值，我发现这在 Boot 中是有效的，显然，只要toString()给出一个有效的头值，就可以使用任何类型。

@FeignClient(
    name = "my-feign-client",
    url = "http://my-url.com"
)
public interface MyClient {
    @GetMapping(
        path = "/the/endpoint",
        produces = MediaType.APPLICATION_JSON_VALUE
    )
    DataResponse getData(@RequestHeader(HttpHeaders.AUTHORIZATION) BearerHeader bearerHeader);

final class BearerHeader {
    private final String token;

    private BearerHeader(String token) {
        this.token = token;
    }

    @Override
    public String toString() {
        return String.format("Bearer %s", token);
    }

    public static BearerHeader of(String token) {
        return new BearerHeader(token);
    }
}