提供接口的服務為被調用方,發起Feign 請求的服務為調用方,Feign 配置在調用方,也成為 Feign client 用戶端
1. 在調用方配置pom,引入依賴
<dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-feign</artifactId> </dependency>
2. 寫一個 interface
//www.1b23.com @FeignClient("xing-user")//服務名public interface UserInterface { @RequestMapping(value ="/user/findByNameEn/{nameEn}" ,method =RequestMethod.GET )//必須使用RequestMapper,使用GetMapping啟動報錯 public User findByNameEn(@PathVariable("nameEn") String nameEn);//@PathVariable後面需要指定nameEn,不然可能報錯 }
3. 啟動類上加上注解
@EnableFeignClients(basePackages = {"org.fh.movie"})指定上面接口所在的類,可以隻到父包
4. 在處理類 Controller 中調用上面寫上
@Autowired private UserInterface userInterface; //www.1b23.com @GetMapping(value = "/findUserByNameEn/{nameEn}",produces = { "application/json;charset=UTF-8" })public User findUserByNameEn(@PathVariable String nameEn) { User user = userInterface.findByNameEn(nameEn); System.out.println("findUserByNameEn----"+user); return user; }
被調用方,接口正常寫即可