Spring Cloud Zookeeper服务注册与发现 基于Spring Cloud Zookeeper实现服务注册与发现
自律给我自由 人气:0服务注册
1.添加Spring Cloud Zookeeper依赖:
<dependencies> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-zookeeper-discovery</artifactId> <exclusions> <exclusion> <groupId>org.apache.zookeeper</groupId> <artifactId>zookeeper</artifactId> </exclusion> </exclusions> </dependency> <dependency> <groupId>org.apache.zookeeper</groupId> <artifactId>zookeeper</artifactId> <version>3.6.2</version> <exclusions> <exclusion> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> </exclusion> </exclusions> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> </dependencies>
2.在服务配置文件中添加zookeeper配置:
spring: cloud: zookeeper: connect-string: localhost:2181 #zookeeper地址
3.启动zookeeper服务器和服务（我这边是启动了两个服务，分别是provider和consumer），然后在zookeeper客户端中可以查看已经注册到zookeeper中的服务:
服务发现
1.创建controller
消费者controller:
package com.buhe.zk.controller;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;
import java.util.List;
@RestController
public class ZkConsumerController {
private static final String SERVICE_NAME = "provider";
private static final String SERVICE_PATH = "/zk/provider";
@Autowired
private RestTemplate restTemplate;
@Autowired
private DiscoveryClient discoveryClient;
/**
* 调用提供者服务
* @return
*/
@GetMapping("/zk/consumer")
public String zkConsumer(){
return "我吃了" + restTemplate.getForObject("http://" + SERVICE_NAME + SERVICE_PATH, String.class);
}
/**
* 获取提供者服务URL
* @return
*/
@GetMapping("/zk/url")
public String serviceUrl() {
List<ServiceInstance> list = discoveryClient.getInstances(SERVICE_NAME);
if (list != null && list.size() > 0 ) {
return list.get(0).getUri().toString() + SERVICE_PATH;
}
return null;
}
}
要使用RestTemplate别忘了加配置：
@Bean
@LoadBalanced
public RestTemplate restTemplate(){
return new RestTemplate();
}
提供者controller:
package com.buhe.zk.controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
public class ZkProviderController {
@GetMapping("/zk/provider")
public String zkProvider(){
return "10个苹果";
}
}
2.服务调用
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