Dubbo+zookeeper服务注册与调用-优快云博客

本文链接：https://blog.youkuaiyun.com/linlinv3/article/details/52678851

一、配置zk

1、安装zk 下载地址http://www.apache.org/dyn/closer.cgi/zookeeper/

下载ZK后解压，然后进行启动。此处的zk部署在192.168.0.190机器上，使用默认端口2181

2、启动zk

  
  bin/zkServer.sh start

3、测试zk是否启动

  
   bin/zkCli.sh -server 192.168.0.190:2181

出现 Welcome to ZooKeeper! 启动成功

二、新建服务端项目

1、新建项目 dubboProvide 配置服务端

pom.xml 配置如下

  
  <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>dubboProvide</groupId>
  <artifactId>dubbo-providerDemo</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>jar</packaging>
  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
  </properties>
  <dependencies>
  	<dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>dubbo</artifactId>
            <version>2.4.10</version>
            <exclusions>
                <exclusion>
                    <groupId>org.springframework</groupId>
                    <artifactId>spring</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>com.101tec</groupId>
            <artifactId>zkclient</artifactId>
            <version>0.4</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>3.2.8.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>3.2.8.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-beans</artifactId>
            <version>3.2.8.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>3.2.8.RELEASE</version>
            <scope>test</scope>
        </dependency>
         
  </dependencies>
</project>

spring-dubbo-provide.xml配置如下

  
  <?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
 	xmlns:jee="http://www.springframework.org/schema/jee"
	xmlns:tx="http://www.springframework.org/schema/tx"
	 xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
	xmlns:context="http://www.springframework.org/schema/context"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
	http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
	http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.1.xsd
	 http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd 
	http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd"
	default-lazy-init="false" >
  	<!-- 提供方应用信息，用于计算依赖关系 -->  
    <dubbo:application name="dubboProvide"  />  
   
    <!-- 使用zookeeper注册中心暴露服务地址 -->  
    <dubbo:registry address="zookeeper://192.168.0.190:2181" />  
   
    <!-- 用dubbo协议在20880端口暴露服务 -->  
    <dubbo:protocol name="dubbo" port="20880" />  
   
    <!-- 声明需要暴露的服务接口 -->  
    <dubbo:service interface="com.lin.provider.DemoService" ref="demoServiceImpl" />  
   
    <!-- 和本地bean一样实现服务  -->
    <bean id="demoServiceImpl" class="com.lin.provider.DemoServiceImpl" />   
		
</beans>

DemoServcie 如下：

  
  package com.lin.provider;  
  
public interface DemoService {  
	
   public  String sayHello(String name);  
    
}

DemoServiceImpl 如下：

  
  package com.lin.provider;  
public class DemoServiceImpl implements DemoService{  
  
    @Override  
    public String sayHello(String name) {  
        return "Hello Dubbo,Hello " + name;  
    }  
  
}

服务端配置完毕，接下来启动项目，提供接口

Provider 如下：

  
  package com.lin.provider;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class Provider {
 
    public static void main(String[] args) throws Exception {
     
     ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(new String[] {"spring-dubbo-provider.xml"});
        context.start();
 
        System.out.println("---开启端口-----");
        
        System.in.read(); // 按任意键退出
    }
 
}

运行main方法，提供接口；此时服务端启动完毕。消费者就可以调用这个暴露的接口。

2、新建dubboCustom项目，实现消费者调用服务端。

pom.xml如上。

spring-dubbo-custoom.xml如下：

  
  <?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
 	xmlns:jee="http://www.springframework.org/schema/jee"
	xmlns:tx="http://www.springframework.org/schema/tx"
	 xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
	xmlns:context="http://www.springframework.org/schema/context"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
	http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
	http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.1.xsd
	 http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd 
	http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd"
	default-lazy-init="false" >
  	<!-- 提供方应用信息，用于计算依赖关系 -->  
    <dubbo:application name="dubboCustom"  />  
   
    <!-- 使用zookeeper注册中心暴露服务地址 -->  
    <dubbo:registry address="zookeeper://192.168.0.190:2181" />  
   
    <!-- 用dubbo协议在20880端口暴露服务 -->  
    <dubbo:protocol name="dubbo" port="20880" />  
   
    <!-- 声明需要暴露的服务接口 -->  
    <dubbo:reference id="demoServiceImpl"     interface="com.lin.provider.DemoService" />  
   
</beans>

消费者测试类，custom类如下：

  
  package dubboCustom;  
  
import org.springframework.context.support.ClassPathXmlApplicationContext;
import com.lin.provider.DemoService;
  
  
public class Custom {  
  
    public static void main(String[] args) throws Exception {  
        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(  
                new String[] { "spring-dubbo-custom.xml" });  
        context.start();  
  
        DemoService demoService = (DemoService) context.getBean("demoServiceImpl"); //  
        String hello = demoService.sayHello("lin"); // ִ  
        System.out.println(hello); //   
  
        System.in.read();  
    }  
  
}

运行main方法，可以看到，控制台输出

  
  log4j:WARN No appenders could be found for logger (org.springframework.core.env.StandardEnvironment).
log4j:WARN Please initialize the log4j system properly.
Hello Dubbo,Hello tom