Springboot集成feign远程调用

需求：在leadnews-wemedia微服务里需要调用leadnews-article微服务的接口。新建一个支持feign调用的名为heima-leadnews-feign-api的模块

1. heima-leadnews-feign-api的pom文件里导入openfeign依赖

<dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-openfeign</artifactId>
</dependency>

2. heima-leadnews-feign-api里定义远程调用接口

@FeignClient(value = "leadnews-article",path = "/api/v1/article")
public interface IArticleClient {/****、* 文章保存*/@PostMapping(value = "/save")ResponseResult<Long> save(@RequestBody ArticleDto dto);
}

3. 在leadnews-wemedia的pom文件中引入

<dependency><groupId>com.heima</groupId><artifactId>heima-leadnews-feign-api</artifactId>
</dependency>

4. 在leadnews-wemedia的启动类上添加@EnableFeignClients注解

@EnableFeignClients(basePackages = "com.xxx.feign.article")

5. leadnews-article的其他文件

• ApArticleController

@RestController
@RequestMapping(value = "/api/v1/article")
public class ApArticleController {@Autowiredprivate ApArticleService apArticleService;/****、* 文章保存*/@PostMapping(value = "/save")public ResponseResult<Long> save(@RequestBody ArticleDto dto){return apArticleService.saveArticle(dto);}...}

• leadnews-article配置

server:port: 51802
spring:application:name: leadnews-articlecloud:nacos:discovery:server-addr: 192.168.33.31:8848config:server-addr: 192.168.33.31:8848file-extension: yml
...
...