㐅韵味十足的 - 云代码空间
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.forezp</groupId> <artifactId>service-feign</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>jar</packaging> <name>service-feign</name> <description>Demo project for Spring Boot</description> <parent> <groupId>com.forezp</groupId> <artifactId>sc-f-chapter3</artifactId> <version>0.0.1-SNAPSHOT</version> </parent> <dependencies> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-openfeign</artifactId> </dependency> </dependencies> </project>
eureka: client: serviceUrl: defaultZone: http://localhost:8761/eureka/ server: port: 8765 spring: application: name: service-feign
@SpringBootApplication @EnableEurekaClient @EnableDiscoveryClient @EnableFeignClients public class ServiceFeignApplication { public static void main(String[] args) { SpringApplication.run( ServiceFeignApplication.class, args ); } }定义一个feign接口,通过@ FeignClient(“服务名”),来指定调用哪个服务。比如在代码中调用了service-hi服务的“/hi”接口,代码如下:
@FeignClient(value = "service-hi") public interface SchedualServiceHi { @RequestMapping(value = "/hi",method = RequestMethod.GET) String sayHiFromClientOne(@RequestParam(value = "name") String name); }
@RestController public class HiController { //编译器报错,无视。 因为这个Bean是在程序启动的时候注入的,编译器感知不到,所以报错。 @Autowired SchedualServiceHi schedualServiceHi; @GetMapping(value = "/hi") public String sayHi(@RequestParam String name) { return schedualServiceHi.sayHiFromClientOne( name ); } }启动程序,多次访问http://localhost:8765/hi?name=forezp,浏览器交替显示: