dubbo服务框架

       上一篇文章介绍了zookeeper，作为服务的注册中心，如何配置集群等，接下来使用dubbo开发接口作为服务的提供者，通过zookeeper把服务暴露给外界使用。

 

      首先，dubbo与zookeeper之间采用netty的NIO框架来进行通信的，并且对外提供服务，NIO的并发处理能力比较强，这个也是dubbo服务的性能好的主要原因。

 

     首先我们可以编译dubbo-admin 程序，用来监控我们要发布的dubbo服务。编译完成后，把war报部署在tomcat里面，这里有个配置文件,WEB-INF 下面的dubbo.properties

写道

dubbo.registry.address=zookeeper://127.0.0.1:4180
dubbo.admin.root.password=root
dubbo.admin.guest.password=guest

   注意修改自己的zookeeper集群地址

   接下来，开发服务注册的agent 

  

package com.mor.server.dubbo.service;


public interface DemoServer {

	String sayHello(String str);

}

 

/**
 * 
 */
package com.mor.server.dubbo.service;

import java.util.Date;

public class DemoServerImpl implements DemoServer {

	/**
	 * 返回添加后的语句
	 */
	public String sayHello(String str) {
		str = "Hello " + str + "  2:" + new Date();
		System.err.println("server:" + str);
		return str;
	}

}

 

/**
 * 
 */
package com.mor.main;

import java.io.IOException;

import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Main {

	public static void main(String[] args) throws IOException {
		ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(new String[] { "applicationProvider.xml" });
		context.start();
		System.out.println("按任意键退出");
		System.in.read();
	}

}

 

pom.xml 写道

<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.mor.maven</groupId>
<artifactId>dubboserver</artifactId>
<version>0.0.1</version>
<packaging>jar</packaging>

<name>dubboserver</name>
<url>http://maven.apache.org</url>

<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<spring.version>3.1.4.RELEASE</spring.version>
<slf4j.version>1.6.6</slf4j.version>
</properties>

<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<!-- Spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-asm</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-expression</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- spring end -->
<!-- log -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.16</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${slf4j.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>${slf4j.version}</version>
</dependency>
<!-- dubbo -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>dubbo</artifactId>
<version>2.5.3</version>
</dependency>
<!-- zkclient -->
<dependency>
<groupId>com.github.sgroschupf</groupId>
<artifactId>zkclient</artifactId>
<version>0.1</version>
</dependency>
<!-- zookeeper -->
<dependency>
<groupId>org.apache.zookeeper</groupId>
<artifactId>zookeeper</artifactId>
<version>3.3.6</version>
</dependency>
</dependencies>

<build>
<finalName>dubbo-demo</finalName>
<plugins>
<!-- 非多个资源配置 start-->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.1</version>
<configuration>
<source>1.5</source>
<target>1.5</target>
<encoding>UTF-8</encoding>
<failOnError>false</failOnError>
</configuration>
</plugin>
<!-- 非多个资源配置 end-->
</plugins>
</build>
</project>

 

   

applicationProvider.xml 写道

<?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" />
<!-- 本机 伪集群 测试 -->
<dubbo:registry protocol="zookeeper" address="127.0.0.1:4180,127.0.0.1:4181,127.0.0.1:4182" />
<dubbo:protocol name="dubbo" port="20882" />
<dubbo:service interface="com.mor.server.dubbo.service.DemoServer"
ref="demoService" /> <!-- 和本地bean一样实现服务 -->
<bean id="demoService" class="com.mor.server.dubbo.service.DemoServerImpl" />
</beans>

 

  完成后运行，打开dubbo 的admin管理界面，可以看到服务的注册信息等

 

   接着开发消费者

  

package com.mor.client.dubbo.action;

import java.util.Date;

import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.mor.server.dubbo.service.DemoServer;

public class ChatAction {

    public void SayHello(){ 
	ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(new String[] { "applicationConsumer.xml" });
	context.start();
	DemoServer demoServer = (DemoServer) context.getBean("demoService");
	System.out.println("client:"+demoServer.sayHello("Wanggq"+"1:"+new Date())+"3:"+new Date());
    }

}

 

package com.mor.client.dubbo.main;

import com.mor.client.dubbo.action.ChatAction;

public class Main {

    public static void main(String[] args) throws InterruptedException {
    	int i=0;
    	while(i++<100){
    		ChatAction act = new ChatAction();
    		act.SayHello();
    		Thread.sleep(3000);
    	}
    }

}

 

写道

<?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="consumer-of-helloworld-app" /> <!-- 使用multicast广播注册中心暴露发现服务地址 -->
<dubbo:registry protocol="zookeeper" address="127.0.0.1:4180,127.0.0.1:4181,127.0.0.1:4182" /> <!-- 生成远程服务代理，可以和本地bean一样使用demoService -->
<dubbo:reference id="demoService" interface="com.mor.server.dubbo.service.DemoServer" />
</beans>

 

pom.xml 写道

<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>demo-dubbo</groupId>
<artifactId>dubboclient</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>

<name>dubboclient</name>
<url>http://maven.apache.org</url>

<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<spring.version>3.1.4.RELEASE</spring.version>
<slf4j.version>1.6.6</slf4j.version>
</properties>

<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<!-- Spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-asm</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-expression</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- spring end -->
<!-- log -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.16</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${slf4j.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>${slf4j.version}</version>
</dependency>
<!-- dubbo -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>dubbo</artifactId>
<version>2.5.3</version>
</dependency>
<!-- zkclient -->
<dependency>
<groupId>com.github.sgroschupf</groupId>
<artifactId>zkclient</artifactId>
<version>0.1</version>
</dependency>
<!-- zookeeper -->
<dependency>
<groupId>org.apache.zookeeper</groupId>
<artifactId>zookeeper</artifactId>
<version>3.4.4</version>
</dependency>
</dependencies>

<build>
<finalName>dubbo-demo</finalName>
<plugins>
<!-- 非多个资源配置 start-->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.1</version>
<configuration>
<source>1.5</source>
<target>1.5</target>
<encoding>UTF-8</encoding>
<failOnError>false</failOnError>
</configuration>
</plugin>
<!-- 非多个资源配置 end-->
</plugins>
</build>
</project>

 

运行测试就可以看到效果了。