SpringCloud集成zookeeper&Feign API_feignclient调用zookeeper中的api

SpringBoot 2.0增加了zookeeper作为注册中心，使用Feign API 的方式演示使用zookeeper作为注册中心，spring-boot-zookeeper 同样内置实现了服务发现，负载均衡等

下面是使用示例

@EnableFeignClients(clients = HelloApi.class)
@EnableDiscoveryClient
@SpringBootApplication
public class SystemApplication {
 
	public static void main(String[] args) {
		SpringApplication.run(SystemApplication.class, args);
	}
 
}

zookeeper配置

#zookeeper注册中心配置
#Connection string to the Zookeeper cluster
spring.cloud.zookeeper.connectString=localhost:2181
#Is Zookeeper enabled
spring.cloud.zookeeper.enabled=true

定义Feign API

@FeignClient(value = "spring-boot-zookeeper-demo", path = "api/hello")
public interface HelloApi {
 
  @RequestMapping(value = "/{name}/getUniqueId")
  public String getUniqueId(@PathVariable("name") String name);
 
  @RequestMapping(value = "/getValue")
  public String getValue(@RequestParam(value = "id") int id);
}

服务提供者

/**
 * 服务端-API
 */
@RestController
@RequestMapping("/api/hello")
public class HelloServerController implements HelloApi {
 
  @RequestMapping(value = "/{name}/getUniqueId")
  public String getUniqueId(@PathVariable("name") String name) {
    System.out.println("SERVER--->>>>"+name);
    return "hello world->"+name+"  "+new Random().nextDouble();
  }
 
  @RequestMapping(value = "/getValue")
  public String getValue(@RequestParam(value = "id") int id) {
    return "ok:"+new Random().nextDouble();
  }
}

服务消费者示例

/**
 * 客户端测试
 */
@RestController()
public class HelloClientController {
  @Autowired
  HelloApi helloApi;
 
  @RequestMapping(value="/test/feign")
  public Object test(){
    return helloApi.getUniqueId("zhangsan");
  }
}

详细了解可以下载源码:  https://github.com/kevinLuan/spring-boot-zookeeper-demo.git