【OpenFeign】OpenFeig使用问题

一、参考资料

1. 问题描述

21-11-23 11:33:22.941 ERROR [XNIO-1 task-1] c.e.rpc.http.GlobalExceptionHandler     :115 - Servlet exception caught: Handler dispatch failed; nested exception is java.lang.NoSuchMethodError: feign.Request.requestBody()Lfeign/Request$Body;

2. 问题分析

Spring-cloud升级异常:java.lang.NoSuchMethodError: feign.Request.requestBody()Lfeign/Request$Body；_一只小码渣的博客-CSDN博客

nacos使用openfeign调用服务 - 简书

使用HttpClient和OkHttp调用服务的区别（附示例代码） - 骑着蜗牛看海呀 - 博客园

https://segmentfault.com/a/1190000039889836?utm_source=sf-hot-article

排查源码最后发现是uri=/，原来是RequestMapping的value写成了name

原来是RequestMapping的value写成了name

@Service
@FeignClient(value = "appcore")
public interface AppCoreService {
    @GetMapping(value = "/status")
    String status();
}

@RequestMapping与@GetMapping和@PostMapping等新注释 -解道Jdon

最终发现问题没有指定包

@EnableFeignClients(basePackages = "com.xxx.xxx.openfeign.*")

终于解决了

// https://mvnrepository.com/artifact/org.springframework.cloud/spring-cloud-openfeign-core
implementation 'org.springframework.cloud:spring-cloud-openfeign-core:2.2.10.RELEASE'

Feign全局异常处理 - 简书

Spring Cloud Feign(第四篇)之Fallback_孙平平的博客-CSDN博客