网关 Spring Cloud Zuul 抓取404异常

深藏阁楼爱情的钟 2023-01-14 11:56 65阅读 0赞

**问题描述**：

网关zuul配置如下

zuul:
      routes:
        laker:
          path: /laker/**
          url: http://httpbin.org

**正常访问**：http://localhost:8080/laker/get 路由到 http://httpbin.org/get

**异常访问**：http://localhost:8080/lake123 返回错误页面如下：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2FidTkzNTAwOTA2Ng_size_16_color_FFFFFF_t_70][]

想要达到自定义返回json格式的效果。

**直接上解决代码**

@RestController
    @Slf4j
    public class DefaultUncaughtErrorControllor implements ErrorController { 
    
        @RequestMapping("/error")
        public Response error(HttpServletRequest request, HttpServletResponse response) { 
            HttpStatus statusCode = getHttpStatusCode(request);
            String uri = (String) request.getAttribute(RequestDispatcher.ERROR_REQUEST_URI);
            log.error("error,code:{},uri:{}", statusCode.value(), uri);
            return Response.error(statusCode.value(), "未找到接口", uri);
        }
    
        private HttpStatus getHttpStatusCode(HttpServletRequest request) { 
            try { 
                Integer statusCode = (Integer) request.getAttribute(RequestDispatcher.ERROR_STATUS_CODE);
                if (statusCode == null) { 
                    return HttpStatus.INTERNAL_SERVER_ERROR;
                }
                return HttpStatus.valueOf(statusCode);
            } catch (Exception e) { 
                return HttpStatus.INTERNAL_SERVER_ERROR;
            }
        }
    
    
        @Override
        public String getErrorPath() { 
            return null;
        }
    }

具体细节参考我另一篇文章：[从零搭建开发脚手架 捕获404异常][_404]

**效果如下**：

![20210420154044273.png][]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2FidTkzNTAwOTA2Ng_size_16_color_FFFFFF_t_70]: /images/20221022/7b6a57f4a2bd4fa8a357aea72feefe10.png
[_404]: https://blog.csdn.net/abu935009066/article/details/115729015
[20210420154044273.png]: /images/20221022/8e2451330b774d579fe4c406ad246cd9.png