Dubbo入门及Demo运行实例
前言：运行需要自己安装zookeeper，自己创建maven工程，不会的自行百度。1、先展示目录结构2、新建maven工程3、修改pom，引入对应jar<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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前言：
运行需要自己安装zookeeper，自己创建maven工程，不会的自行百度。
1、先展示目录结构
2、新建maven工程
3、修改pom，引入对应jar
<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>com.sino.mars.dubbo</groupId>
<artifactId>demo.paractice</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>demo.paractice</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/com.alibaba/dubbo -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>dubbo</artifactId>
<version>2.5.3</version>
</dependency>
<dependency>
<groupId>org.apache.zookeeper</groupId>
<artifactId>zookeeper</artifactId>
<version>3.3.6</version>
<exclusions>
<exclusion>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.16</version>
</dependency>
<!-- zookeeper_service 出错 java.lang.NoClassDefFoundError: org/I0Itec/zkclient/exception/ZkNoNodeException -->
<dependency>
<groupId>com.101tec</groupId>
<artifactId>zkclient</artifactId>
<version>0.10</version>
</dependency>
</dependencies>
</project>
4、创建model
package com.sino.mars.dubbo.demo.paractice.model;
import java.io.Serializable;
import java.util.List;
public class MsgInfo implements Serializable {
private static final long serialVersionUID = -357956654466558490L;
int id;
String name;
List<String> msgs;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public List<String> getMsgs() {
return msgs;
}
public void setMsgs(List<String> msgs) {
this.msgs = msgs;
}
}
5、创建helloservice
package com.sino.mars.dubbo.demo.paractice.service;
import com.sino.mars.dubbo.demo.paractice.model.MsgInfo;
/**
*
* @版权：SINOSERVICES 版权所有 (c) 2013
* @author:Mars
* @version Revision 1.0.0
* @email:Mars.Wei@sinoservices.com
* @see:
* @创建日期：2017年5月23日
* @功能说明：
* @begin
* @修改记录:
* @修改后版本 修改人 修改内容
* @2017年5月23日 Mars 创建
* @end
*/
public interface HelloService {
public void sayHello();
public String returnHello();
public MsgInfo returnMsgInfo(MsgInfo info);
}
package com.sino.mars.dubbo.demo.paractice.service.impl;
import com.sino.mars.dubbo.demo.paractice.model.MsgInfo;
import com.sino.mars.dubbo.demo.paractice.service.HelloService;
/**
*
* @版权：SINOSERVICES 版权所有 (c) 2013
* @author:Mars
* @version Revision 1.0.0
* @email:Mars.Wei@sinoservices.com
* @see:
* @创建日期：2017年5月23日
* @功能说明：
* @begin
* @修改记录:
* @修改后版本 修改人 修改内容
* @2017年5月23日 Mars 创建
* @end
*/
public class HelloServiceImpl implements HelloService {
public void sayHello() {
System.out.println("------hello world!");
}
public String returnHello() {
return "hello world!";
}
public MsgInfo returnMsgInfo(MsgInfo info) {
info.getMsgs().add("处理完毕");
return info;
}
}
<?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:dubbo="http://code.alibabatech.com/schema/dubbo"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://code.alibabatech.com/schema/dubbo
http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
<dubbo:application name="hello-world-app" />
<!--zookeeper注册中心 -->
<dubbo:registry protocol="zookeeper" address="127.0.0.1:2182" />
<dubbo:protocol name="dubbo" port="20880" />
<dubbo:service
interface="com.sino.mars.dubbo.demo.paractice.service.HelloService" ref="helloService" />
<!-- 和本地bean一样实现服务 -->
<bean id="helloService" class="com.sino.mars.dubbo.demo.paractice.service.impl.HelloServiceImpl" />
</beans>8、创建消费者consumer.xml配置文件
<?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:dubbo="http://code.alibabatech.com/schema/dubbo"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://code.alibabatech.com/schema/dubbo
http://code.alibabatech.com/schema/dubbo/dubbo.xsd
">
<!--消费方应用名，用于计算依赖关系，不是匹配条件，不要与提供方一样 -->
<dubbo:application name="consumer-of-helloworld-app" />
<!--zookeeper注册中心 -->
<dubbo:registry protocol="zookeeper" address="127.0.0.1:2182" />
<!-- 生成远程服务代理，可以和本地bean一样使用demoService -->
<dubbo:reference id="helloService"
interface="com.sino.mars.dubbo.demo.paractice.service.HelloService" />
</beans>9、创建生产者主程序
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class ProviderMain {
public static void main(String[] args) throws InterruptedException {
ProviderMain providerMain = new ProviderMain();
providerMain.start();
Thread.sleep(1000 * 60 * 10);
}
public void start() {
String configLocation = "provider.xml";
ApplicationContext context = new ClassPathXmlApplicationContext(configLocation);
String[] names = context.getBeanDefinitionNames();
System.out.print("Beans:");
for (String string : names)
System.out.print(string + ",");
System.out.println();
}
}
10、创建消费者主程序
import java.util.ArrayList;
import java.util.List;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import com.sino.mars.dubbo.demo.paractice.model.MsgInfo;
import com.sino.mars.dubbo.demo.paractice.service.HelloService;
public class ConsumerMain {
public static void main(String[] args) throws InterruptedException {
ConsumerMain luncher = new ConsumerMain();
luncher.start();
}
void start() {
String configLocation = "consumer.xml";
ApplicationContext context = new ClassPathXmlApplicationContext(configLocation);
HelloService ds = (HelloService) context.getBean("helloService");
String[] names = context.getBeanDefinitionNames();
System.out.print("Beans:");
for (String string : names) {
System.out.print(string);
System.out.print(",");
}
System.out.println();
MsgInfo info = new MsgInfo();
info.setId(1);
info.setName("mars");
List<String> msgs = new ArrayList<String>();
msgs.add("I");
msgs.add("am");
msgs.add("test");
info.setMsgs(msgs);
System.out.println(ds.returnMsgInfo(info).getMsgs());
ds.sayHello();
System.err.println(ds.returnHello());
}
}
11、先启动生产者主程序
12、再启动消费者主程序
至此：生产者--消费者已经运行完毕。
附：Dubbo后台管理页面查看我们刚创建的服务。
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