SpringCloud_Zookeeper服务注册与发现

Eureka停止更新了,怎么办?

Zookeeper是一个分布式协调工具,可以实现注册中心功能
关闭Linux服务器防火墙后启动Zookeeper服务器
Zookeeper服务器取代Eureka服务器,zk作为服务注册中心
Zookeeper_安装部署原理及应用

微服务提供者

1. pom

<!-- SpringBoot整合zookeeper客户端 -->
<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-zookeeper-discovery</artifactId>
    <!--先排除自带的zookeeper3.5.3-->
    <exclusions>
        <exclusion>
            <groupId>org.apache.zookeeper</groupId>
            <artifactId>zookeeper</artifactId>
        </exclusion>
    </exclusions>
</dependency>
<!--添加zookeeper3.4.9版本-->
<dependency>
    <groupId>org.apache.zookeeper</groupId>
    <artifactId>zookeeper</artifactId>
    <version>3.4.9</version>
</dependency>

2. yaml

#8004表示注册到zookeeper服务器的支付服务提供者端口号
server:
  port: 8004

#服务别名----注册zookeeper到注册中心名称
spring:
  application:
    name: cloud-provider-payment
  cloud:
    zookeeper:
      connect-string: 192.168.111.144:2181

3. 主启动类

@SpringBootApplication
//该注解用于向使用consul或者zookeeper作为注册中心时注册服务
@EnableDiscoveryClient 
public class PaymentMain8004
{
    public static void main(String[] args) {
            SpringApplication.run(PaymentMain8004.class, args);
    }
}

微服务消费者

1. pom

<!-- SpringBoot整合zookeeper客户端 -->
<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-zookeeper-discovery</artifactId>
    <!--先排除自带的zookeeper-->
    <exclusions>
        <exclusion>
            <groupId>org.apache.zookeeper</groupId>
            <artifactId>zookeeper</artifactId>
        </exclusion>
    </exclusions>
</dependency>
<!--添加zookeeper3.4.9版本-->
<dependency>
    <groupId>org.apache.zookeeper</groupId>
    <artifactId>zookeeper</artifactId>
    <version>3.4.9</version>
</dependency>

2. yaml

server:
  port: 80

spring:
  application:
    name: cloud-consumer-order
  cloud:
  #注册到zookeeper地址
    zookeeper:
      connect-string: 192.168.111.144:2181

3. 主启动类

@SpringBootApplication
@EnableDiscoveryClient
public class OrderZKMain80
{
    public static void main(String[] args) {
            SpringApplication.run(OrderZKMain80.class, args);
    }
}

4. @LoadBalanced负载均衡

@Configuration
public class ApplicationContextConfig
{
    @Bean
    @LoadBalanced
    public RestTemplate getRestTemplate()
    {
        return new RestTemplate();
    }
}

5. controller

@RestController
@Slf4j
public class OrderZKController
{
    public static final String INVOKE_URL = "http://cloud-provider-payment";

    @Resource
    private RestTemplate restTemplate;

    @GetMapping(value = "/consumer/payment/zk")
    public String paymentInfo()
    {
        String result = restTemplate.getForObject(INVOKE_URL+"/payment/zk",String.class);
        return result;
    }
}

参考Demo

https://github.com/zzyybs/atguigu_spirngcloud2020