解决SpringCloud Feign传对象参数调用失败的问题方法

本篇文章小编给大家分享一下解决SpringCloud Feign传对象参数调用失败的问题方法，文章代码介绍的很详细，小编觉得挺不错的，现在分享给大家供大家参考，有需要的小伙伴们可以来看看。

SpringCloud Feign传对象参数调用失败

不支持GET请求方式

使用Apache HttpClient替换Feign原生httpclient

@RequestBody接收json参数

bootstrap-local.yml

feign:
  httpclient:
    enabled: true

pom.xml

    com.netflix.feign
    feign-httpclient
    8.18.0


    org.apache.httpcomponents
    httpclient
    4.5.3

feignClient：

@FeignClient(name = "hd-ucenter-server", fallback = SysTestServerFallbackImpl.class)
public interface SysTestServer { 
    @RequestMapping(value = "/test/test", method = RequestMethod.POST, consumes = "application/json")
    Object test(CurrentUser currentUser);
}

RestController：

@RestController
@PostMapping("/test")
public class TestController {
 
    @RequestMapping(value = "/test")
    public Object test(@RequestBody CurrentUser currentUser) {
        System.out.printf("调用testn");
       return currentUser;
    }
}

SpringCloud中Feign异常无法传递的问题

因为 cloud内部抛出异常不进行处理，Feign获取spring默认包装异常结果如下：

{

"timestamp": "2017-12-27 15:01:53",

"status": 500,

"error": "Internal Server Error",

"exception": "com.keruyun.loyalty.commons.master.exception.BusinessException",

"message": "Request processing failed; nested exception is {"code":1000, "message":"test Exception"}",

"path": "/coupon/cloud/commercial/8469"

}

自定义的异常处理下返回状态

@Slf4j
@RestControllerAdvice
public class GlobalExceptionHandlerResolver {
 
    //内部服务异常处理
    @ExceptionHandler(InternalApiException.class)
    public ResultResp handleGlobalException(HttpServletResponse response, InternalApiException internalApiException) {
        ResultResp resultResp = internalApiException.getResultResp();
        log.error(internalApiException.getMessage(), internalApiException);
        response.setStatus(HttpStatus.INTERNAL_SERVER_ERROR.value());//返回500异常
        response.setContentType(MediaType.APPLICATION_JSON_UTF8.toString());
        return resultResp;
    }
}