SpringCloud集成zookeeper&Feign API

不念不忘少年蓝@ 2022-03-25 10:56 185阅读 0赞

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][https_github.com_kevinLuan_spring-boot-zookeeper-demo.git]

[https_github.com_kevinLuan_spring-boot-zookeeper-demo.git]: https://github.com/kevinLuan/spring-boot-zookeeper-demo.git