SpringCloud与Zookeeper整合(Zookeeper为注册中心)
可参照该博客：ZK可视化Web工具(zkui)安装与搭建(zookeeper)
SpringCloud与Zookeeper完美结合,搭建简易的服务注册中心，依赖的三脚架jar包如下
org.springframework.cloud
spring-cloud-starter-zookeeper-discovery
2.1.2.RELEASE
org.apache.zookeeper
zookeeper
3.4.10
org.slf4j
slf4j-log4j12
log4j
log4j
三脚架整合SpringCloud以Zookeeper作为服务注册中心。
服务提供者的pom.xml配置如下:
======================================pom.xml=========================
4.0.0
org.springframework.boot
spring-boot-starter-parent
2.1.2.RELEASE
com.dubbo.zookeeper.register
SSO-SpringCloud-Zookeeper
1.0-SNAPSHOT
SSO-SpringCloud-Zookeeper
repos
Repository
http://maven.aliyun.com/nexus/content/groups/public
central
Maven Repository Switchboard
default
http://repo1.maven.org/maven2
false
repos
Repository
http://maven.aliyun.com/nexus/content/groups/public
UTF-8
1.8
1.8
org.springframework.boot
spring-boot-starter-web
org.springframework.cloud
spring-cloud-starter-zookeeper-discovery
2.1.2.RELEASE
org.apache.zookeeper
zookeeper
3.4.10
org.slf4j
slf4j-log4j12
log4j
log4j
org.springframework.boot
spring-boot-maven-plugin
相关的*.properties配置文件如下：
===============================application.properties=============
spring.profiles.active=dev
===============================application-dev.properties===========
## 配置引用名称,会在/zk-server下生成该名称的节点
spring.application.name=spring-cloud-zookeeper-provider
## 配置服务端口
server.port=8888
## 关闭安全控制
management.security.enabled=false
## connect-string：连接zk服务的连接串
spring.cloud.zookeeper.connect-string=centoshadoop1:2181,centoshadoop2:2181,centoshadoop3:2181
# register: 是否启动服务注册
spring.cloud.zookeeper.discovery.enabled=true
spring.cloud.zookeeper.discovery.register=true
instance-id: zk唯一id的标识,会在/zk-server/spring-cloud-zookeeper-provider/下面生成该节点
spring.cloud.zookeeper.discovery.instance-id=zk-00001
root: zk根节点名称，默认/services
spring.cloud.zookeeper.discovery.root=/zk-server-provider
服务业务逻辑:
package com.dubbo.zookeeper.register.controller;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
@RestController
public class ZKUserController {
@Value("${server.port}")
private int port;
@Value("${spring.application.name}")
private String applicationName;
@GetMapping("/list")
public List findZkUser(){
List resultList = new ArrayList<>();
resultList.add(new Zkuser("zk-server-"+applicationName+"-"+new Random().nextInt(10000) ,new Random().nextInt(120),port));
resultList.add(new Zkuser("zk-server-"+applicationName+"-"+new Random().nextInt(10000) ,new Random().nextInt(120),port));
resultList.add(new Zkuser("zk-server-"+applicationName+"-"+new Random().nextInt(10000) ,new Random().nextInt(120),port));
resultList.add(new Zkuser("zk-server-"+applicationName+"-"+new Random().nextInt(10000) ,new Random().nextInt(120),port));
return resultList;
}
}
引用的辅助实体类:
package com.dubbo.zookeeper.register.controller;
import java.io.Serializable;
public class Zkuser implements Serializable {
private String name;
private int age;
private int port;
public Zkuser(String name, int age, int port) {
this.name = name;
this.age = age;
this.port = port;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public int getPort() {
return port;
}
public void setPort(int port) {
this.port = port;
}
@Override
public String toString() {
return "Zkuser{" +
"name='" + name + '\'' +
", age=" + age +
",server port=" + port +
'}';
}
}
服务提供者启动类：
package com.dubbo.zookeeper.register;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
/**
*
*zookeeper配置注册中心
*/
@SpringBootApplication
public class SpringCloudZookeeperApplication {
public static void main( String[] args ) {
SpringApplication.run(SpringCloudZookeeperApplication.class,args);
}
}
启动服务提供者:
访问:http://localhost:8888/list ,返回业务数据:
[
{"name":"zk-server-spring-cloud-zookeeper-server-5701","age":32,"port":8888},
{"name":"zk-server-spring-cloud-zookeeper-server-5338","age":96,"port":8888},
{"name":"zk-server-spring-cloud-zookeeper-server-5520","age":65,"port":8888},
{"name":"zk-server-spring-cloud-zookeeper-server-7225","age":65,"port":8888}
]=================服务消费者相关配置========================================
pom.xml配置
4.0.0
org.springframework.boot
spring-boot-starter-parent
2.1.2.RELEASE
com.zookeeper.dubbo.register.consumer
SSO-SpringCloud-Zookeeper-Consumer
1.0-SNAPSHOT
SSO-SpringCloud-Zookeeper-Consumer
repos
Repository
http://maven.aliyun.com/nexus/content/groups/public
central
Maven Repository Switchboard
default
http://repo1.maven.org/maven2
false
repos
Repository
http://maven.aliyun.com/nexus/content/groups/public
UTF-8
1.8
1.8
Finchley.SR2
org.springframework.cloud
spring-cloud-starter-feign
1.4.6.RELEASE
org.springframework.boot
spring-boot-starter-web
org.springframework.cloud
spring-cloud-starter-zookeeper-discovery
2.1.2.RELEASE
org.apache.zookeeper
zookeeper
3.4.10
org.slf4j
slf4j-log4j12
log4j
log4j
org.springframework.cloud
spring-cloud-dependencies
${spring-cloud.version}
pom
import
org.springframework.boot
spring-boot-maven-plugin
application-dev.properties 配置如下：
## 配置引用名称,会在/zk-server下生成该名称的节点
spring.application.name=spring-cloud-zookeeper-consumer
## 配置服务端口
server.port=7777
## 关闭安全控制
management.security.enabled=false
## connect-string：连接zk服务的连接串
spring.cloud.zookeeper.connect-string=centoshadoop1:2181,centoshadoop2:2181,centoshadoop3:2181
# register: 是否启动服务注册
spring.cloud.zookeeper.discovery.enabled=true
spring.cloud.zookeeper.discovery.register=true
# instance-id: zk唯一id的标识,会在/zk-server/spring-cloud-zookeeper-prover/下面生成该节点
spring.cloud.zookeeper.discovery.instance-id=zk-00001
# # root: zk根节点名称，默认/services,必須與服務提供者的相同 ,否則報錯com.netflix.client.ClientException: Load
# # balancer does not have available server for client: spring-cloud-zookeeper-provider
spring.cloud.zookeeper.discovery.root=/zk-server-provider
消费者代理接口package com.zookeeper.dubbo.register.consumer.service;
import com.zookeeper.dubbo.register.consumer.domain.Zkuser;
import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.GetMapping;
import java.util.List;
@Service
@FeignClient("spring-cloud-zookeeper-provider") // 该值为服务提供者的应用名称
public interface ZkUserService {
@GetMapping("/list")
List getList();
}
图为服务提供者，在zookeeper注册中心注册的服务提供者名称 spring-cloud-zookeeper-provider
controler类
package com.zookeeper.dubbo.register.consumer.controller;
import com.zookeeper.dubbo.register.consumer.domain.Zkuser;
import com.zookeeper.dubbo.register.consumer.service.ZkUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import java.util.List;
@RestController
public class ZkUserController {
@Autowired
private ZkUserService zkUserService;
@GetMapping("/consumerList")
public List getList() {
return zkUserService.getList();
}
}
启动类：
package com.zookeeper.dubbo.register.consumer;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.openfeign.EnableFeignClients;
/**
* zookeeper註冊中心消費者
*
*/
@SpringBootApplication
@EnableDiscoveryClient // 開啟服務方向機制
@EnableFeignClients
public class ZkConsumerApplication {
public static void main( String[] args ) {
SpringApplication.run(ZkConsumerApplication.class,args);
}
}
Zkuser类同提供者访问路径：http://localhost:7777/consumerList
[
{"name":"zk-server-spring-cloud-zookeeper-provider-5421","age":85,"port":8888},
{"name":"zk-server-spring-cloud-zookeeper-provider-8779","age":13,"port":8888},
{"name":"zk-server-spring-cloud-zookeeper-provider-6341","age":63,"port":8888},
{"name":"zk-server-spring-cloud-zookeeper-provider-903","age":16,"port":8888}
]可以在Zookeeper WebUI中看到已经注册的服务 zk-server-provider
完美SpringCloud以Zookeeper为注册中心整合成功！！
尽请关注下一篇:SpringCloud与Consul(Consul为注册中心)....
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