Dubbo zookeeper 初探

1.zookeeper
http://zookeeper.apache.org/ 官网下载，然后安装

启动时，需要将 zoo_sample.cfg 改成 zoo.cfg

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# The number of milliseconds of each tick

tickTime=2000

# The number of ticks that the initial

# synchronization phase can take

initLimit=10

# The number of ticks that can pass between

# sending a request and getting an acknowledgement

syncLimit=5

# the directory where the snapshot is stored.

# do not use /tmp for storage, /tmp here is just

# example sakes.

dataDir=D:\\Zookeeper-3.4.5\\data

# the port at which the clients will connect

clientPort=2181

#

# Be sure to read the maintenance section of the

# administrator guide before turning on autopurge.

#

# http://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_maintenance

#

# The number of snapshots to retain in dataDir

#autopurge.snapRetainCount=3

# Purge task interval in hours

# Set to "0" to disable auto purge feature

#autopurge.purgeInterval=1

2. dubbo-demo-api 定义接口

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public interface IProcessData {

public String deal(String data);

}

3.dubbo-demo-provider 服务提供者

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public class ProcessDataImpl implements IProcessData {



/*

* @see com.xxx.bubbo.provider.IProcessData#deal(java.lang.String)

*/

@Override

public String deal(String data) {

try {

Thread.sleep(1000);

} catch (InterruptedException e) {

e.printStackTrace();

}

return "Finished:" + data;

}

}

provider.xml配置

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<?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

">



<!-- Application name -->

<dubbo:application name="hello-world-app" />



<!-- registry address, used for service to register itself -->

<dubbo:registry address="zookeeper://127.0.0.1:2181" />



<!-- expose this service through dubbo protocol, through port 20880 -->

<!--

<dubbo:protocol name="dubbo" port="20880" />



<dubbo:protocol name="dubbo" port="9090" server="netty"

client="netty" codec="dubbo" serialization="hessian2" charset="UTF-8"

threadpool="fixed" threads="100" queues="0" iothreads="9" buffer="8192"

accepts="1000" payload="8388608" />

-->

<!-- Service interface Concurrent Control -->

<dubbo:service interface="com.bestpay.dubbo.provider.IProcessData"

ref="demoService" executes="10" />



<!-- Default Protocol -->

<!--

<dubbo:protocol server="netty" />

-->



<!-- designate implementation -->

<bean id="demoService" class="com.xxx.dubbo.provider.ProcessDataImpl" />



</beans>

启动服务

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public class DubboProviderMain {



/**

* @Title main

* @Description TODO

* @Author weizhi2018

* @param args

* @throws

*/



public static void main(String[] args) throws Exception {

ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(

new String[]{"provider.xml"});

context.start();



System.out.println("Press any key to exit.");

System.in.read();

}

}

引用jar



3.dubbo-demo-consumer

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public class ConsumerThd implements Runnable {



/*

* @see java.lang.Runnable#run()

*/

@Override

public void run() {

ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(

new String[]{"consumer.xml"});

context.start();



IProcessData demoService = (IProcessData) context.getBean("demoService"); // get

// service

// invocation

// proxy

String hello = demoService.deal("nihao"); // do invoke!



System.out.println(Thread.currentThread().getName() + " "+hello);

}



}

consumer.xml

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<?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

">



<!-- consumer application name -->

<dubbo:application name="consumer-of-helloworld-app" />



<!-- registry address, used for consumer to discover services -->

<dubbo:registry address="zookeeper://127.0.0.1:2181" />

<dubbo:consumer timeout="5000"/>

<!-- which service to consume? -->

<dubbo:reference id="demoService" interface="com.xxx.dubbo.provider.IProcessData" />

</beans>

4.dubbo-admin

下载dubbo-admin项目，部署到tomcat6下面，启动tomcat ，在浏览器打开：http://localhost:8080/dubbo-admin, 输入用户名/密码：root/root



原文地址：http://blog.csdn.net/u011270461/article/details/12144623