原文地址：http://blog.csdn.net/ruishenh/article/details/23180707?utm_source=tuicool
1. 概述
Dubbo是一个分布式服务框架，致力于提供高性能和透明化的RPC远程服务调用方案，以及SOA服务治理方案
主要核心部件
Remoting: 网络通信框架，实现了sync-over-async 和 request-response 消息机制.
RPC: 一个远程过程调用的抽象，支持负载均衡、容灾和集群功能
Registry: 服务目录框架用于服务的注册和服务事件发布和订阅。
Dubbo采用全Spring配置方式，透明化接入应用，对应用没有任何API侵入，只需用Spring加载Dubbo的配置即可，Dubbo基于Spring的Schema扩展进行加载。
2. 简单实例
demo文件下载：http://download.csdn.net/detail/ruishenh/7164585
首先maven项目增加dubbo的jar依赖，因为要用到zookeeper注册中心，也要依赖但是要去掉自带的log4j不然会默认的版本依赖jms-1.1.jar jmxtools-1.2.1.jar jmxri-1.2.1.jar等3个包，下载挺麻烦，当然如果个人已经在自己的仓库中有了就无所谓了。
<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/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.ruishenh</groupId> <artifactId>gomeTest</artifactId> <packaging>war</packaging> <version>0.0.1-SNAPSHOT</version> <name>gomeTest Maven Webapp</name> <url>http://maven.apache.org</url> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <spring.version>3.1.0.RELEASE</spring.version> </properties> <dependencies> <dependency> <groupId>com.alibaba.rocketmq</groupId> <artifactId>rocketmq-all</artifactId> <version>3.0.4-open</version> <type>pom</type> </dependency> <dependency> <groupId>com.alibaba.rocketmq</groupId> <artifactId>rocketmq-client</artifactId> <version>3.0.4-open</version> </dependency> <dependency> <groupId>com.alibaba.rocketmq</groupId> <artifactId>rocketmq-common</artifactId> <version>3.0.4-open</version> </dependency> <dependency> <groupId>commons-httpclient</groupId> <artifactId>commons-httpclient</artifactId> <version>3.1</version> <scope>compile</scope> </dependency> <dependency> <groupId>org.apache.httpcomponents</groupId> <artifactId>httpclient</artifactId> <version>4.2.3</version> <scope>compile</scope> </dependency> <dependency> <groupId>org.apache.httpcomponents</groupId> <artifactId>httpcore</artifactId> <version>4.2.3</version> <scope>compile</scope> </dependency> <dependency> <groupId>org.apache.httpcomponents</groupId> <artifactId>httpmime</artifactId> <version>4.2.3</version> <scope>compile</scope> </dependency> <dependency> <groupId>ch.qos.logback</groupId> <artifactId>logback-classic</artifactId> <version>1.1.1</version> </dependency> <dependency> <groupId>ch.qos.logback</groupId> <artifactId>logback-core</artifactId> <version>1.1.1</version> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.10</version> <scope>test</scope> </dependency> <dependency> <groupId>org.swinglabs</groupId> <artifactId>swingx</artifactId> <version>1.6.1</version> </dependency> <!--Redis --> <dependency> <groupId>redis.clients</groupId> <artifactId>jedis</artifactId> <version>2.4.2</version> <type>jar</type> <scope>compile</scope> </dependency> <!-- spring --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spring.version}</version> <exclusions> <exclusion> <groupId>commons-logging</groupId> <artifactId>commons-logging</artifactId> </exclusion> </exclusions> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>${spring.version}</version> <exclusions> <exclusion> <groupId>commons-logging</groupId> <artifactId>commons-logging</artifactId> </exclusion> </exclusions> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-expression</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-tx</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-core</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-jdbc</artifactId> <version>${spring.version}</version> </dependency> <!-- 定时器 --> <dependency> <groupId>org.quartz-scheduler</groupId> <artifactId>quartz</artifactId> <version>1.7.2</version> </dependency> <!-- dubbo --> <dependency> <groupId>com.alibaba</groupId> <artifactId>dubbo</artifactId> <version>2.0.13</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> <!-- spring mvc 返回 json使用 --> <dependency> <groupId>org.codehaus.jackson</groupId> <artifactId>jackson-core-asl</artifactId> <version>1.8.4</version> </dependency> <dependency> <groupId>org.codehaus.jackson</groupId> <artifactId>jackson-mapper-asl</artifactId> <version>1.8.4</version> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>servlet-api</artifactId> <version>2.5</version> <scope>provided</scope> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>jsp-api</artifactId> <version>2.0</version> <scope>provided</scope> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-surefire-plugin</artifactId> <version>2.12.4</version> <configuration> <skipTests>true</skipTests> </configuration> </plugin> <plugin> <groupId>org.mortbay.jetty</groupId> <artifactId>maven-jetty-plugin</artifactId> <version>6.1.26</version> <configuration> <connectors> <connector implementation="org.mortbay.jetty.nio.SelectChannelConnector"> <port>8090</port> <maxIdleTime>60000</maxIdleTime> </connector> </connectors> </configuration> </plugin> </plugins> <finalName>gomeTest</finalName> </build> </project>
Spring的依赖自己添加就好了
因为要增加zookeeper的注册管理，所以如果有可用的zookeeper就用可用的zookeeper，没有可以按照如下的安装去本地安装一个。
zk 02之 Windows安装和使用zookeeper
项目结构图
/gomeTest/src/main/resources/spring/dubbo-provider.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 "> <dubbo:application name="hello-world-app" /> <!-- zookeeper注册中心 --> <dubbo:registry protocol="zookeeper" address="10.118.62.89:2181" /> <!-- 使用multicast广播注册中心暴露服务地址 --> <!-- <dubbo:registry address="multicast://10.57.41.19:1234" /> --> <dubbo:protocol name="dubbo" port="20880" /> <dubbo:service interface="com.ruishenh.dubbo.example.DemoService" ref="demoService" /> <!-- 和本地bean一样实现服务 --> <bean id="demoService" class="com.ruishenh.dubbo.example.DemoServiceImpl" /> </beans>
/gomeTest/src/main/resources/spring/dubbo-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 "> <!-- 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="10.118.62.89:2181" /> <!-- 使用multicast广播注册中心暴露的服务地址 --> <!--<dubbo:registry address="multicast://10.57.41.19:1234" /> --> <!-- 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.ruishenh.dubbo.example.DemoService" /> </beans>
/gomeTest/src/main/java/com/ruishenh/dubbo/example/DemoService.java
package com.ruishenh.dubbo.example; public interface DemoService { public void sayHello(); public String returnHello(); public MsgInfo returnMsgInfo(MsgInfo info); }
/gomeTest/src/main/java/com/ruishenh/dubbo/example/DemoServiceImpl.java
package com.ruishenh.dubbo.example; public class DemoServiceImpl implements DemoService{ 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; } }
/gomeTest/src/main/java/com/ruishenh/dubbo/example/LuncherProvider.java
package com.ruishenh.dubbo.example; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; public class LuncherProvider { public static void main(String[] args) throws InterruptedException{ LuncherProvider luncher=new LuncherProvider(); luncher.start(); Thread.sleep(1000*60*10); } void start(){ String configLocation="spring/dubbo-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(); } }
/gomeTest/src/main/java/com/ruishenh/dubbo/example/LuncherConsumer.java
package com.ruishenh.dubbo.example; import java.util.ArrayList; import java.util.List; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; public class LuncherConsumer { public static void main(String[] args) throws InterruptedException{ LuncherConsumer luncher=new LuncherConsumer(); luncher.start(); } void start(){ String configLocation="spring/dubbo-consumer.xml"; ApplicationContext context =new ClassPathXmlApplicationContext(configLocation); DemoService ds=(DemoService) context.getBean("demoService"); 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("ruisheh"); 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()); } }
/gomeTest/src/main/java/com/ruishenh/dubbo/example/MsgInfo.java
package com.ruishenh.dubbo.example; import java.io.Serializable; import java.util.List; public class MsgInfo implements Serializable { private static final long serialVersionUID = -2814022769568306965L; 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; } }
//启动provider：运行LuncherProvider.java
- Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@5829428e: startup date [Fri Mar 31 16:21:30 CST 2017]; root of context hierarchy - Loading XML bean definitions from class path resource [spring/dubbo-provider.xml] - using logger: com.alibaba.dubbo.common.logger.support.Log4jLoggerFactory - Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@7cfefe3f: defining beans [hello-world-app,com.alibaba.dubbo.config.RegistryConfig,dubbo,com.ruishenh.dubbo.example.DemoService,demoService]; root of factory hierarchy - [DUBBO] No dubbo.properties found on the class path., dubbo version: 2.0.13, current host: 127.0.0.1 - [DUBBO] Export dubbo service com.ruishenh.dubbo.example.DemoService to url dubbo://10.118.62.89:20880/com.ruishenh.dubbo.example.DemoService?anyhost=true&application=hello-world-app&dubbo=2.0.13&interface=com.ruishenh.dubbo.example.DemoService&methods=returnMsgInfo,returnHello,sayHello&prompt=dubbo&revision=, dubbo version: 2.0.13, current host: 127.0.0.1 - [DUBBO] Register dubbo service com.ruishenh.dubbo.example.DemoService url dubbo://10.118.62.89:20880/com.ruishenh.dubbo.example.DemoService?anyhost=true&application=hello-world-app&dubbo=2.0.13&interface=com.ruishenh.dubbo.example.DemoService&methods=returnMsgInfo,returnHello,sayHello&prompt=dubbo&revision= to registry registry://10.118.62.89:2181/com.alibaba.dubbo.registry.RegistryService?application=hello-world-app®istry=zookeeper, dubbo version: 2.0.13, current host: 127.0.0.1 - [DUBBO] Start NettyServer bind /0.0.0.0:20880, export /10.118.62.89:20880, dubbo version: 2.0.13, current host: 127.0.0.1 - Client environment:zookeeper.version=3.3.6-1366786, built on 07/29/2012 06:22 GMT - Client environment:host.name=SF0001107252A.sf.com - Client environment:java.version=1.6.0_29 - Client environment:java.vendor=Sun Microsystems Inc. - Client environment:java.home=C:Javajdk1.6.0_29jre - Client environment:java.class.path=D:shivaomcsgomeTest argetclasses;D:local epocomalibaba ocketmq ocketmq-client3.0.4-open ocketmq-client-3.0.4-open.jar;D:local epocomalibaba ocketmq ocketmq-common3.0.4-open ocketmq-common-3.0.4-open.jar;D:local epocomalibaba ocketmq ocketmq-remoting3.0.4-open ocketmq-remoting-3.0.4-open.jar;D:local epocomalibabafastjson1.1.33fastjson-1.1.33.jar;D:local epoio etty etty-all4.0.9.Final etty-all-4.0.9.Final.jar;D:local epocommons-clicommons-cli1.2commons-cli-1.2.jar;D:local epocommons-iocommons-io2.4commons-io-2.4.jar;D:local epocommons-httpclientcommons-httpclient3.1commons-httpclient-3.1.jar;D:local epocommons-loggingcommons-logging1.0.4commons-logging-1.0.4.jar;D:local epocommons-codeccommons-codec1.2commons-codec-1.2.jar;D:local epoorgapachehttpcomponentshttpclient4.2.3httpclient-4.2.3.jar;D:local epoorgapachehttpcomponentshttpcore4.2.3httpcore-4.2.3.jar;D:local epoorgapachehttpcomponentshttpmime4.2.3httpmime-4.2.3.jar;D:local epochqoslogbacklogback-classic1.1.1logback-classic-1.1.1.jar;D:local epoorgslf4jslf4j-api1.7.6slf4j-api-1.7.6.jar;D:local epochqoslogbacklogback-core1.1.1logback-core-1.1.1.jar;D:local epoorgswinglabsswingx1.6.1swingx-1.6.1.jar;D:local epocomjhlabsfilters2.0.235filters-2.0.235.jar;D:local epoorgswinglabsswing-worker1.1swing-worker-1.1.jar;D:local epo edisclientsjedis2.4.2jedis-2.4.2.jar;D:local epoorgapachecommonscommons-pool22.0commons-pool2-2.0.jar;D:local epoorgspringframeworkspring-webmvc3.1.0.RELEASEspring-webmvc-3.1.0.RELEASE.jar;D:local epoorgspringframeworkspring-asm3.1.0.RELEASEspring-asm-3.1.0.RELEASE.jar;D:local epoorgspringframeworkspring-context-support3.1.0.RELEASEspring-context-support-3.1.0.RELEASE.jar;D:local epoorgspringframeworkspring-web3.1.0.RELEASEspring-web-3.1.0.RELEASE.jar;D:local epoaopallianceaopalliance1.0aopalliance-1.0.jar;D:local epoorgspringframeworkspring-test3.1.0.RELEASEspring-test-3.1.0.RELEASE.jar;D:local epoorgspringframeworkspring-expression3.1.0.RELEASEspring-expression-3.1.0.RELEASE.jar;D:local epoorgspringframeworkspring-tx3.1.0.RELEASEspring-tx-3.1.0.RELEASE.jar;D:local epoorgspringframeworkspring-aop3.1.0.RELEASEspring-aop-3.1.0.RELEASE.jar;D:local epoorgspringframeworkspring-beans3.1.0.RELEASEspring-beans-3.1.0.RELEASE.jar;D:local epoorgspringframeworkspring-core3.1.0.RELEASEspring-core-3.1.0.RELEASE.jar;D:local epoorgspringframeworkspring-context3.1.0.RELEASEspring-context-3.1.0.RELEASE.jar;D:local epoorgspringframeworkspring-jdbc3.1.0.RELEASEspring-jdbc-3.1.0.RELEASE.jar;D:local epoorgquartz-schedulerquartz1.7.2quartz-1.7.2.jar;D:local epocomalibabadubbo2.0.13dubbo-2.0.13.jar;D:local epoorgspringframeworkspring2.5.6.SEC03spring-2.5.6.SEC03.jar;D:local epoorgjavassistjavassist3.15.0-GAjavassist-3.15.0-GA.jar;D:local epoorgjboss etty etty3.2.5.Final etty-3.2.5.Final.jar;D:local epoorgapachezookeeperzookeeper3.3.6zookeeper-3.3.6.jar;D:local epojlinejline .9.94jline-0.9.94.jar;D:local epolog4jlog4j1.2.16log4j-1.2.16.jar;D:local epoorgcodehausjacksonjackson-core-asl1.8.4jackson-core-asl-1.8.4.jar;D:local epoorgcodehausjacksonjackson-mapper-asl1.8.4jackson-mapper-asl-1.8.4.jar;D:local epojavaxservletservlet-api2.5servlet-api-2.5.jar;D:local epojavaxservletjsp-api2.0jsp-api-2.0.jar - Client environment:java.library.path=C:Javajdk1.6.0_29in;C:WindowsSunJavain;C:Windowssystem32;C:Windows;C:/Java/jre1.8.0_31/bin/server;C:/Java/jre1.8.0_31/bin;C:/Java/jre1.8.0_31/lib/amd64;C:ProgramDataOracleJavajavapath;C:Javajdk1.8.0_31in;C:Javajdk1.8.0_31jrein;C:WindowsSystem32;d:Program Files (x86)Lua5.1clibs;GRADLE_HOME/bin;C:Python27;D:softmavenapache-maven-3.3.9in;$STORM_HOME/bin;C:Program FilesTortoiseGitin;C:Program FilesMercurial;D:softgradle-2.12-allin;D:softsparkspark-2.1.0-bin-hadoop2.7in;%system%system32;C:Program Files (x86)GoogleChromeApplication;C:ProgramDataOracleJavajavapath;C:Javajdk1.8.0_31in;C:Javajdk1.8.0_31jrein;C:WindowsSystem32;d:Program Files (x86)Lua5.1clibs;GRADLE_HOME/bin;C:Python27;D:softmavenapache-maven-3.3.9in;$STORM_HOMEin;D:softgradle-2.12-allin;D:softdeveloper toolseclipse-jee-mars-2-win32-x86_64eclipse;;. - Client environment:java.io.tmpdir=C:Users 1107252AppDataLocalTemp - Client environment:java.compiler=<NA> - Client environment:os.name=Windows 7 - Client environment:os.arch=amd64 - Client environment:os.version=6.1 - Client environment:user.name=01107252 - Client environment:user.home=d:user 1107252 - Client environment:user.dir=D:shivaomcsgomeTest - Initiating client connection, connectString=10.118.62.89:2181 sessionTimeout=60000 watcher=com.alibaba.dubbo.registry.zookeeper.ZookeeperRegistry$1@6b12da40 - [DUBBO] Register: dubbo://10.118.62.89:20880/com.ruishenh.dubbo.example.DemoService?anyhost=true&application=hello-world-app&dubbo=2.0.13&interface=com.ruishenh.dubbo.example.DemoService&methods=returnMsgInfo,returnHello,sayHello&prompt=dubbo&revision=, dubbo version: 2.0.13, current host: 127.0.0.1 - Opening socket connection to server /10.118.62.89:2181 - Socket connection established to SF0001107252A.sf.com/10.118.62.89:2181, initiating session - Session establishment complete on server SF0001107252A.sf.com/10.118.62.89:2181, sessionid = 0x15b23746f340000, negotiated timeout = 40000 - [DUBBO] Recover register services [dubbo://10.118.62.89:20880/com.ruishenh.dubbo.example.DemoService?anyhost=true&application=hello-world-app&dubbo=2.0.13&interface=com.ruishenh.dubbo.example.DemoService&methods=returnMsgInfo,returnHello,sayHello&prompt=dubbo&revision=], dubbo version: 2.0.13, current host: 127.0.0.1 - [DUBBO] Register: dubbo://10.118.62.89:20880/com.ruishenh.dubbo.example.DemoService?anyhost=true&application=hello-world-app&dubbo=2.0.13&interface=com.ruishenh.dubbo.example.DemoService&methods=returnMsgInfo,returnHello,sayHello&prompt=dubbo&revision=, dubbo version: 2.0.13, current host: 127.0.0.1 Beans:hello-world-app,com.alibaba.dubbo.config.RegistryConfig,dubbo,com.ruishenh.dubbo.example.DemoService,demoService, - [DUBBO] All clients has discontected from /10.118.62.89:20880. You can graceful shutdown now., dubbo version: 2.0.13, current host: 127.0.0.1 - [DUBBO] disconected from /10.118.62.89:57216,url:dubbo://10.118.62.89:20880/com.ruishenh.dubbo.example.DemoService?anyhost=true&application=hello-world-app&channel.readonly.sent=true&codec=dubbo&codec.downstream=dubbo&dubbo=2.0.13&interface=com.ruishenh.dubbo.example.DemoService&methods=returnMsgInfo,returnHello,sayHello&prompt=dubbo&revision=, dubbo version: 2.0.13, current host: 127.0.0.1
//启动Consumer:运行LuncherConsumer.java
- Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@7d2a1e44: startup date [Fri Mar 31 16:21:40 CST 2017]; root of context hierarchy - Loading XML bean definitions from class path resource [spring/dubbo-consumer.xml] - using logger: com.alibaba.dubbo.common.logger.support.Log4jLoggerFactory - Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@667cbde6: defining beans [consumer-of-helloworld-app,com.alibaba.dubbo.config.RegistryConfig,demoService]; root of factory hierarchy - [DUBBO] No dubbo.properties found on the class path., dubbo version: 2.0.13, current host: 127.0.0.1 - Client environment:zookeeper.version=3.3.6-1366786, built on 07/29/2012 06:22 GMT - Client environment:host.name=SF0001107252A.sf.com - Client environment:java.version=1.6.0_29 - Client environment:java.vendor=Sun Microsystems Inc. - Client environment:java.home=C:Javajdk1.6.0_29jre - Client environment:java.class.path=D:shivaomcsgomeTest argetclasses;D:local epocomalibaba ocketmq ocketmq-client3.0.4-open ocketmq-client-3.0.4-open.jar;D:local epocomalibaba ocketmq ocketmq-common3.0.4-open ocketmq-common-3.0.4-open.jar;D:local epocomalibaba ocketmq ocketmq-remoting3.0.4-open ocketmq-remoting-3.0.4-open.jar;D:local epocomalibabafastjson1.1.33fastjson-1.1.33.jar;D:local epoio etty etty-all4.0.9.Final etty-all-4.0.9.Final.jar;D:local epocommons-clicommons-cli1.2commons-cli-1.2.jar;D:local epocommons-iocommons-io2.4commons-io-2.4.jar;D:local epocommons-httpclientcommons-httpclient3.1commons-httpclient-3.1.jar;D:local epocommons-loggingcommons-logging1.0.4commons-logging-1.0.4.jar;D:local epocommons-codeccommons-codec1.2commons-codec-1.2.jar;D:local epoorgapachehttpcomponentshttpclient4.2.3httpclient-4.2.3.jar;D:local epoorgapachehttpcomponentshttpcore4.2.3httpcore-4.2.3.jar;D:local epoorgapachehttpcomponentshttpmime4.2.3httpmime-4.2.3.jar;D:local epochqoslogbacklogback-classic1.1.1logback-classic-1.1.1.jar;D:local epoorgslf4jslf4j-api1.7.6slf4j-api-1.7.6.jar;D:local epochqoslogbacklogback-core1.1.1logback-core-1.1.1.jar;D:local epoorgswinglabsswingx1.6.1swingx-1.6.1.jar;D:local epocomjhlabsfilters2.0.235filters-2.0.235.jar;D:local epoorgswinglabsswing-worker1.1swing-worker-1.1.jar;D:local epo edisclientsjedis2.4.2jedis-2.4.2.jar;D:local epoorgapachecommonscommons-pool22.0commons-pool2-2.0.jar;D:local epoorgspringframeworkspring-webmvc3.1.0.RELEASEspring-webmvc-3.1.0.RELEASE.jar;D:local epoorgspringframeworkspring-asm3.1.0.RELEASEspring-asm-3.1.0.RELEASE.jar;D:local epoorgspringframeworkspring-context-support3.1.0.RELEASEspring-context-support-3.1.0.RELEASE.jar;D:local epoorgspringframeworkspring-web3.1.0.RELEASEspring-web-3.1.0.RELEASE.jar;D:local epoaopallianceaopalliance1.0aopalliance-1.0.jar;D:local epoorgspringframeworkspring-test3.1.0.RELEASEspring-test-3.1.0.RELEASE.jar;D:local epoorgspringframeworkspring-expression3.1.0.RELEASEspring-expression-3.1.0.RELEASE.jar;D:local epoorgspringframeworkspring-tx3.1.0.RELEASEspring-tx-3.1.0.RELEASE.jar;D:local epoorgspringframeworkspring-aop3.1.0.RELEASEspring-aop-3.1.0.RELEASE.jar;D:local epoorgspringframeworkspring-beans3.1.0.RELEASEspring-beans-3.1.0.RELEASE.jar;D:local epoorgspringframeworkspring-core3.1.0.RELEASEspring-core-3.1.0.RELEASE.jar;D:local epoorgspringframeworkspring-context3.1.0.RELEASEspring-context-3.1.0.RELEASE.jar;D:local epoorgspringframeworkspring-jdbc3.1.0.RELEASEspring-jdbc-3.1.0.RELEASE.jar;D:local epoorgquartz-schedulerquartz1.7.2quartz-1.7.2.jar;D:local epocomalibabadubbo2.0.13dubbo-2.0.13.jar;D:local epoorgspringframeworkspring2.5.6.SEC03spring-2.5.6.SEC03.jar;D:local epoorgjavassistjavassist3.15.0-GAjavassist-3.15.0-GA.jar;D:local epoorgjboss etty etty3.2.5.Final etty-3.2.5.Final.jar;D:local epoorgapachezookeeperzookeeper3.3.6zookeeper-3.3.6.jar;D:local epojlinejline .9.94jline-0.9.94.jar;D:local epolog4jlog4j1.2.16log4j-1.2.16.jar;D:local epoorgcodehausjacksonjackson-core-asl1.8.4jackson-core-asl-1.8.4.jar;D:local epoorgcodehausjacksonjackson-mapper-asl1.8.4jackson-mapper-asl-1.8.4.jar;D:local epojavaxservletservlet-api2.5servlet-api-2.5.jar;D:local epojavaxservletjsp-api2.0jsp-api-2.0.jar - Client environment:java.library.path=C:Javajdk1.6.0_29in;C:WindowsSunJavain;C:Windowssystem32;C:Windows;C:/Java/jre1.8.0_31/bin/server;C:/Java/jre1.8.0_31/bin;C:/Java/jre1.8.0_31/lib/amd64;C:ProgramDataOracleJavajavapath;C:Javajdk1.8.0_31in;C:Javajdk1.8.0_31jrein;C:WindowsSystem32;d:Program Files (x86)Lua5.1clibs;GRADLE_HOME/bin;C:Python27;D:softmavenapache-maven-3.3.9in;$STORM_HOME/bin;C:Program FilesTortoiseGitin;C:Program FilesMercurial;D:softgradle-2.12-allin;D:softsparkspark-2.1.0-bin-hadoop2.7in;%system%system32;C:Program Files (x86)GoogleChromeApplication;C:ProgramDataOracleJavajavapath;C:Javajdk1.8.0_31in;C:Javajdk1.8.0_31jrein;C:WindowsSystem32;d:Program Files (x86)Lua5.1clibs;GRADLE_HOME/bin;C:Python27;D:softmavenapache-maven-3.3.9in;$STORM_HOMEin;D:softgradle-2.12-allin;D:softdeveloper toolseclipse-jee-mars-2-win32-x86_64eclipse;;. - Client environment:java.io.tmpdir=C:Users 1107252AppDataLocalTemp - Client environment:java.compiler=<NA> - Client environment:os.name=Windows 7 - Client environment:os.arch=amd64 - Client environment:os.version=6.1 - Client environment:user.name=01107252 - Client environment:user.home=d:user 1107252 - Client environment:user.dir=D:shivaomcsgomeTest - Initiating client connection, connectString=10.118.62.89:2181 sessionTimeout=60000 watcher=com.alibaba.dubbo.registry.zookeeper.ZookeeperRegistry$1@1d96f4b5 - Opening socket connection to server /10.118.62.89:2181 - Socket connection established to SF0001107252A.sf.com/10.118.62.89:2181, initiating session - [DUBBO] Subscribe: subscribe://10.118.62.89/com.ruishenh.dubbo.example.DemoService?application=consumer-of-helloworld-app&dubbo=2.0.13&id=demoService&interface=com.ruishenh.dubbo.example.DemoService&methods=returnMsgInfo,returnHello,sayHello, dubbo version: 2.0.13, current host: 10.118.62.89 - [DUBBO] Register: subscribe://10.118.62.89/com.ruishenh.dubbo.example.DemoService?application=consumer-of-helloworld-app&dubbo=2.0.13&id=demoService&interface=com.ruishenh.dubbo.example.DemoService&methods=returnMsgInfo,returnHello,sayHello, dubbo version: 2.0.13, current host: 10.118.62.89 - Session establishment complete on server SF0001107252A.sf.com/10.118.62.89:2181, sessionid = 0x15b23746f340001, negotiated timeout = 40000 - [DUBBO] Recover register services [subscribe://10.118.62.89/com.ruishenh.dubbo.example.DemoService?application=consumer-of-helloworld-app&dubbo=2.0.13&id=demoService&interface=com.ruishenh.dubbo.example.DemoService&methods=returnMsgInfo,returnHello,sayHello], dubbo version: 2.0.13, current host: 10.118.62.89 - [DUBBO] Register: subscribe://10.118.62.89/com.ruishenh.dubbo.example.DemoService?application=consumer-of-helloworld-app&dubbo=2.0.13&id=demoService&interface=com.ruishenh.dubbo.example.DemoService&methods=returnMsgInfo,returnHello,sayHello, dubbo version: 2.0.13, current host: 10.118.62.89 - [DUBBO] Recover subscribe services {subscribe://10.118.62.89/com.ruishenh.dubbo.example.DemoService?application=consumer-of-helloworld-app&dubbo=2.0.13&id=demoService&interface=com.ruishenh.dubbo.example.DemoService&methods=returnMsgInfo,returnHello,sayHello=[com.alibaba.dubbo.registry.support.RegistryDirectory@57922f46]}, dubbo version: 2.0.13, current host: 10.118.62.89 - [DUBBO] Subscribe: subscribe://10.118.62.89/com.ruishenh.dubbo.example.DemoService?application=consumer-of-helloworld-app&dubbo=2.0.13&id=demoService&interface=com.ruishenh.dubbo.example.DemoService&methods=returnMsgInfo,returnHello,sayHello, dubbo version: 2.0.13, current host: 10.118.62.89 - [DUBBO] Register: subscribe://10.118.62.89/com.ruishenh.dubbo.example.DemoService?application=consumer-of-helloworld-app&dubbo=2.0.13&id=demoService&interface=com.ruishenh.dubbo.example.DemoService&methods=returnMsgInfo,returnHello,sayHello, dubbo version: 2.0.13, current host: 10.118.62.89 - [DUBBO] Start NettyClient SF0001107252A/10.118.62.89 connect to the server /10.118.62.89:20880, dubbo version: 2.0.13, current host: 10.118.62.89 - [DUBBO] Refer dubbo service com.ruishenh.dubbo.example.DemoService from url zookeeper://10.118.62.89:2181/com.alibaba.dubbo.registry.RegistryService?anyhost=true&application=consumer-of-helloworld-app&dubbo=2.0.13&id=demoService&interface=com.ruishenh.dubbo.example.DemoService&methods=returnMsgInfo,returnHello,sayHello&prompt=dubbo&revision=, dubbo version: 2.0.13, current host: 10.118.62.89 Beans:consumer-of-helloworld-app,com.alibaba.dubbo.config.RegistryConfig,demoService, [I, am, test, 处理完毕] - [DUBBO] Run shutdown hook now., dubbo version: 2.0.13, current host: 10.118.62.89 - [DUBBO] Close all registries [zookeeper://10.118.62.89:2181/com.alibaba.dubbo.registry.RegistryService?application=consumer-of-helloworld-app&refer=application%3Dconsumer-of-helloworld-app%26dubbo%3D2.0.13%26id%3DdemoService%26interface%3Dcom.ruishenh.dubbo.example.DemoService%26methods%3DreturnMsgInfo%2CreturnHello%2CsayHello], dubbo version: 2.0.13, current host: 10.118.62.89 - [DUBBO] Destroy registry: zookeeper://10.118.62.89:2181/com.alibaba.dubbo.registry.RegistryService?application=consumer-of-helloworld-app&refer=application%3Dconsumer-of-helloworld-app%26dubbo%3D2.0.13%26id%3DdemoService%26interface%3Dcom.ruishenh.dubbo.example.DemoService%26methods%3DreturnMsgInfo%2CreturnHello%2CsayHello, dubbo version: 2.0.13, current host: 10.118.62.89 - [DUBBO] Unregister: subscribe://10.118.62.89/com.ruishenh.dubbo.example.DemoService?application=consumer-of-helloworld-app&dubbo=2.0.13&id=demoService&interface=com.ruishenh.dubbo.example.DemoService&methods=returnMsgInfo,returnHello,sayHello, dubbo version: 2.0.13, current host: 10.118.62.89 - Session: 0x15b23746f340001 closed - [DUBBO] Destroy reference: dubbo://10.118.62.89:20880/com.ruishenh.dubbo.example.DemoService?anyhost=true&application=consumer-of-helloworld-app&check=false&dubbo=2.0.13&id=demoService&interface=com.ruishenh.dubbo.example.DemoService&methods=returnMsgInfo,returnHello,sayHello&prompt=dubbo&revision=, dubbo version: 2.0.13, current host: 10.118.62.89 - EventThread shut down - [DUBBO] Close netty channel [id: 0x1494cb8b, /10.118.62.89:57216 => /10.118.62.89:20880], dubbo version: 2.0.13, current host: 10.118.62.89 - [DUBBO] Close dubbo connect: 10.118.62.89:0-->10.118.62.89:20880, dubbo version: 2.0.13, current host: 10.118.62.89 - [DUBBO] Close dubbo connect: 10.118.62.89:0-->10.118.62.89:20880, dubbo version: 2.0.13, current host: 10.118.62.89 - [DUBBO] disconected from /10.118.62.89:20880,url:dubbo://10.118.62.89:20880/com.ruishenh.dubbo.example.DemoService?anyhost=true&application=consumer-of-helloworld-app&check=false&codec=dubbo&dubbo=2.0.13&id=demoService&interface=com.ruishenh.dubbo.example.DemoService&methods=returnMsgInfo,returnHello,sayHello&prompt=dubbo&revision=, dubbo version: 2.0.13, current host: 10.118.62.89
在上面可以看到调用结果的输出。
二、将web的http请求转到dubbo的服务上
先将app-config.xml文件中的dubbo-provider.xml打开
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mongo="http://www.springframework.org/schema/data/mongo" xsi:schemaLocation="http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd"> <!--将dubbo的配置文件导入 --> <import resource="dubbo-provider.xml" /> <!-- <import resource="dubbo-consumer.xml" /> --> </beans>
再看下web.xml文件的配置，web.xml位置：
web.xml内容：
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5"> <display-name>gomeTest</display-name> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring/app-*.xml</param-value> </context-param> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <servlet> <servlet-name>springmvc</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring/springmvc-servlet.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>/*</url-pattern> </servlet-mapping> <filter> <filter-name>HiddenHttpMethodFilter</filter-name> <filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class> </filter> <filter> <filter-name>EncodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> </filter> <filter-mapping> <filter-name>HiddenHttpMethodFilter</filter-name> <servlet-name>springmvc</servlet-name> </filter-mapping> <filter-mapping> <filter-name>EncodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <error-page> <error-code>404</error-code> <location>/WEB-INF/views/error/404.html</location> </error-page> <welcome-file-list> <welcome-file>index.html</welcome-file> </welcome-file-list> </web-app>
在pom.xml中增加jetty的插件jetty-maven-plugin插件
<build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-surefire-plugin</artifactId> <version>2.12.4</version> <configuration> <skipTests>true</skipTests> </configuration> </plugin> <plugin> <groupId>org.mortbay.jetty</groupId> <artifactId>maven-jetty-plugin</artifactId> <version>6.1.26</version> <configuration> <connectors> <connector implementation="org.mortbay.jetty.nio.SelectChannelConnector"> <port>8090</port> <maxIdleTime>60000</maxIdleTime> </connector> </connectors> </configuration> </plugin> </plugins> <finalName>gomeTest</finalName> </build>
调试模式运行：
启动成功后，访问http://localhost:8080/test/dubbo
三、搭建Dubbo服务管理与监控平台
1、安装Dubbo服务管理中心，需要选择一个Web容器，我们使用Tomcat服务器。首先下载Dubbo管理中心安装文件dubbo-admin-2.5.3.war，或者直接从源码构建得到该WAR文件；http://download.csdn.net/download/tangyali516/9219461
2、下载tomcat7
3、下载jdk1.7，http://download.csdn.net/download/zknxx/9662614（这里有两个包）
4、修改tomcat默认使用的jdk版本
1、windows平台
在catalina.bat文件和setclasspath.bat文件开头的空白处加上如下两句(指定JDK)：
set JAVA_HOME=D:softjdkjdk1.7.0_64.01jdk1.7.0_64
set JRE_HOME=D:softjdkjdk1.7.0_64.01jdk1.7.0_64jre
其中后面为指定的jdk安装路径。
2、linux平台
在catalina.sh文件和setclasspath.sh文件开头的空白处加上如下两句(指定JDK)
export JAVA_HOME=/usr/local/java/jdk1.6.0_18
export JRE_HOME=/usr/local/java/jdk1.6.0_18/jre
启动tomcat，dubbo-admin-2.5.3.war被解压，webapps/ROOT/WEB-INF/dubbo.properties，指定我们的注册中心地址以及登录密码，内容如下所示：
dubbo.registry.address=zookeeper://127.0.0.1:2181?backup=127.0.0.1:2182,127.0.0.1:2183 dubbo.admin.root.password=root dubbo.admin.guest.password=guest
然后访问地址http://10.10.4.130:8080/即可，根据配置文件指定的root用户密码，就可以登录Dubbo管理控制台。
我们将上面开发的服务提供方服务，部署到2个独立的节点上（192.168.14.1和10.10.4.125），然后可以通过Dubbo管理中心查看对应服务的状况，如图所示：
如图所示：
上图中可以看出，该服务有两个独立的节点可以提供，因为配置的集群模式为failover，如果某个节点的服务发生故障无法使用，则会自动透明地重试另一个节点上的服务，这就不至于出现拒绝服务的情况。如果想要查看提供方某个节点上的服务详情，可以点击对应的IP:Port链接，示例如图所示：
上图可以看到服务地址：
1 |
dubbo://10.10.4.125:20880/org.shirdrn.dubbo.api.ChatRoomOnlineUserCounterService?actives=100&anyhost=true&application=chatroom-cluster-provider&cluster=failover&dubbo=0.0.1-SNAPSHOT&executes=200&interface=org.shirdrn.dubbo.api.ChatRoomOnlineUserCounterService&loadbalance=random&methods=getMaxOnlineUserCount,queryRoomUserCount&pid=30942&queryRoomUserCount.actives=50&queryRoomUserCount.loadbalance=leastactive&queryRoomUserCount.retries=2&queryRoomUserCount.timeout=500&retries=2&revision=0.0.1-SNAPSHOT&side=provider&timeout=1000×tamp=1427793652814&version=1.0.0 |
如果我们直接暴露该地址也是可以的，不过这种直连的方式对服务消费方不是透明的，如果以后IP地址更换，也会影响调用方，所以最好是通过注册中心来隐蔽服务地址。同一个服务所部署在的多个节点上，也就对应对应着多个服务地址。另外，也可以对已经发布的服务进行控制，如修改访问控制、负载均衡相关配置内容等，可以通过上图中“消费者”查看服务消费方调用服务的情况，如图所示：
也在管理控制台可以对消费方进行管理控制。
- Dubbo监控中心
Dubbo监控中心是以Dubbo服务的形式发布到注册中心，和普通的服务时一样的。例如，我这里下载了Dubbo自带的简易监控中心文件dubbo-monitor-simple-2.5.3-assembly.tar.gz，下载地址：http://download.csdn.net/download/liweifengwf/7864009可以解压缩以后，修改配置文件~/dubbo-monitor-simple-2.5.3/conf/dubbo.properties的内容，如下所示：
[sfapp@cmos1 bin]$ vi ../conf/dubbo.properties ## # Copyright 1999-2011 Alibaba Group. # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. ## dubbo.container=log4j,spring,registry,jetty dubbo.application.name=simple-monitor dubbo.application.owner= #dubbo.registry.address=multicast://224.5.6.7:1234 dubbo.registry.address=zookeeper://10.118.62.89:2181 #dubbo.registry.address=redis://127.0.0.1:6379 #dubbo.registry.address=dubbo://127.0.0.1:9090 dubbo.protocol.port=7070 dubbo.jetty.port=8080 dubbo.jetty.directory=${user.home}/monitor dubbo.charts.directory=${dubbo.jetty.directory}/charts dubbo.statistics.directory=${user.home}/monitor/statistics dubbo.log4j.file=logs/dubbo-monitor-simple.log dubbo.log4j.level=WARN
然后启动简易监控中心，执行如下命令：
[sfapp@cmos1 duan]$ cd dubbo-monitor-simple-2.5.3/bin [sfapp@cmos1 bin]$ ./start.sh Starting the simple-monitor .......OK! PID: 120076 STDOUT: logs/stdout.log
这里使用了Jetty Web容器，访问地址http://10.202.11.117:8080/就可以查看监控中心，Applications选项卡页面包含了服务提供方和消费方的基本信息，如图所示：
上图主要列出了所有提供方发布的服务、消费方调用、服务依赖关系等内容。
接着，查看Services选项卡页面，包含了服务提供方提供的服务列表，如图所示：
点击上图中Providers链接就能看到服务提供方的基本信息，包括服务地址等，如图所示：
点击上图中Consumers链接就能看到服务消费方的基本信息，包括服务地址等，如图所示：
由于上面是Dubbo自带的一个简易监控中心，可能所展现的内容并不能满足我们的需要，所以可以根据需要开发自己的监控中心。Dubbo也提供了监控中心的扩展接口，如果想要实现自己的监控中心，可以实现接口com.alibaba.dubbo.monitor.MonitorFactory和com.alibaba.dubbo.monitor.Monitor，其中MonitorFactory接口定义如下所示：
/** * MonitorFactory. (SPI, Singleton, ThreadSafe) * * @author william.liangf */ @SPI("dubbo") public interface MonitorFactory { /** * Create monitor. * @param url * @return monitor */ @Adaptive("protocol") Monitor getMonitor(URL url); }
Monitor接口定义如下所示：
/** * Monitor. (SPI, Prototype, ThreadSafe) * * @see com.alibaba.dubbo.monitor.MonitorFactory#getMonitor(com.alibaba.dubbo.common.URL) * @author william.liangf */ public interface Monitor extends Node, MonitorService { }
具体定义内容可以查看MonitorService接口，不再累述。
总结
Dubbo还提供了其他很多高级特性，如路由规则、参数回调、服务分组、服务降级等等，而且很多特性在给出内置实现的基础上，还给出了扩展的接口，我们可以给出自定义的实现，非常方便而且强大。更多可以参考Dubbo官网用户手册和开发手册。
附录：Dubbo使用Maven构建依赖配置
<properties> <spring.version>3.2.8.RELEASE</spring.version> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <properties> <dependencies> <dependency> <groupId>com.alibaba</groupId> <artifactId>dubbo</artifactId> <version>2.5.3</version> <exclusions> <exclusion> <groupId>org.springframework</groupId> <artifactId>spring</artifactId> </exclusion> <exclusion> <groupId>org.apache.zookeeper</groupId> <artifactId>zookeeper</artifactId> </exclusion> <exclusion> <groupId>org.jboss.netty</groupId> <artifactId>netty</artifactId> </exclusion> </exclusions> </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>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context-support</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>1.6.2</version> </dependency> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>1.2.16</version> </dependency> <dependency> <groupId>org.javassist</groupId> <artifactId>javassist</artifactId> <version>3.15.0-GA</version> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>hessian-lite</artifactId> <version>3.2.1-fixed-2</version> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.1.8</version> </dependency> <dependency> <groupId>org.jvnet.sorcerer</groupId> <artifactId>sorcerer-javac</artifactId> <version>0.8</version> </dependency> <dependency> <groupId>org.apache.zookeeper</groupId> <artifactId>zookeeper</artifactId> <version>3.4.5</version> </dependency> <dependency> <groupId>com.github.sgroschupf</groupId> <artifactId>zkclient</artifactId> <version>0.1</version> </dependency> <dependency> <groupId>org.jboss.netty</groupId> <artifactId>netty</artifactId> <version>3.2.7.Final</version> </dependency> </dependencies>