mvc lb调用

服务名模式

    @Resource
    private LoadBalancerClient loadBalancerClient;
    @Resource
    private RestTemplate restTemplate;

  ServiceInstance instance = loadBalancerClient.choose(Constant.INSTANCE_GATEWAY);
            URI uri = instance.getUri();
            HttpHeaders httpHeaders = new HttpHeaders();
            httpHeaders.set("Authorization", token);
            Map paramMap = new HashMap<>();
            HttpEntity httpEntity = new HttpEntity(httpHeaders);
            ResponseEntity<返回类> exchange = restTemplate.exchange(
                    uri + "/上下文", HttpMethod.GET
                    , httpEntity, 返回.class, paramMap);
  if (exchange返回类处理) {

//可选
               // ObjectMapper mapper = new ObjectMapper();
               // Map data = mapper.convertValue(exchange.getBody().getData(), Map.class);