Dubbo zookeeper 初探
1.zookeeperhttp://zookeeper.apache.org/ 官网下载，然后安装
启动时，需要将 zoo_sample.cfg 改成 zoo.cfg
# 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
public interface IProcessData {
public String deal(String data);
}
3.dubbo-demo-provider 服务提供者
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
<?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
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
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
<?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
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