四个步骤
1 搭建zookeeper消息中心
2 搭建dubbo服务端代码
3 写dubbo客户端代码
4 dubbo提供的dubbo-admin-2.5.4.war 管理控制台
一，搭建zookeeper
1 下载zookeeper安装文件
zookeeper-3.3.6.tar.gz
这里提供一个百度网盘的下载地址http://pan.baidu.com/s/1gexxfvP
2 执行命令 tar zxvf zookeeper-3.4.6.tar.gz 解压,
3 到 zookeeper-3.3.6/conf 目录下
把zoo_sample.cfg 复制一份为zoo.cfg,作为默认配置文件
4 配置说明
tickTime：这个时间是作为 Zookeeper 服务器之间或客户端与服务器之间维持心跳的时间间隔，也就是每个 tickTime 时间就会发送一个心跳。
dataDir：顾名思义就是 Zookeeper 保存数据的目录，默认情况下，Zookeeper 将写数据的日志文件也保存在这个目录里。
clientPort：这个端口就是客户端连接 Zookeeper 服务器的端口，Zookeeper 会监听这个端口，接受客户端的访问请求。
我的配置: 端口2181是默认配置
5 在zookper-3.3.6/bin目录下执行
./zkServer.sh start 启动zookeeper
6 验证zookeeper是否启动
使用netstat -lpn | grep 2181
如果有端口号, 说明已经启动
二 DubboServer 工程
1，pom.xml
<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.zhang.dubboServer</groupId>
<artifactId>dubboServer</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>dubboServer Maven Webapp</name>
<url>http://maven.apache.org</url>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.4</version>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.1</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>4.1.6.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>4.1.6.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.1.6.RELEASE</version>
</dependency>
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>dubbo</groupId>
<artifactId>dubbo</artifactId>
<version>2.5.3</version>
</dependency>
<dependency>
<groupId>javassist</groupId>
<artifactId>javassist</artifactId>
<version>3.15.0-GA</version>
<classifier>GA</classifier>
</dependency>
<dependency>
<groupId>netty</groupId>
<artifactId>netty</artifactId>
<version>3.2.5.Final</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<dependency>
<groupId>zkclient</groupId>
<artifactId>zkclient</artifactId>
<version>0.4</version>
</dependency>
<dependency>
<groupId>zookeeper</groupId>
<artifactId>zookeeper</artifactId>
<version>3.3.1</version>
</dependency>
</dependencies>
<build>
<finalName>dubboServer</finalName>
</build>
</project>
2.web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
version="3.0"
metadata-complete="false">
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring/springmvc-config.xml;classpath*:dubbo/*.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<servlet>
<servlet-name>DispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring/springmvc-config.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
<async-supported>true</async-supported>
</servlet>
<servlet-mapping>
<servlet-name>DispatcherServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<filter>
<filter-name>CharacterEncodingFilter</filter-name>
<filter-class>
org.springframework.web.filter.CharacterEncodingFilter
</filter-class>
<async-supported>true</async-supported>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>CharacterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
3,spring和dubbo配置文件
<?xml version="1.0" encoding="UTF-8"?>
<beans:beans xmlns="http://www.springframework.org/schema/mvc"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:beans="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.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">
<!-- Handles HTTP GET requests for /resources/** by efficiently serving up static resources in the ${webappRoot}/resources directory -->
<resources mapping="/resources/**" location="/resources/" />
<!-- Enables the Spring MVC @Controller programming model -->
<annotation-driven ></annotation-driven>
<!--spring 自动扫描com.zhang下边的所有类 -->
<context:component-scan base-package="com.zhang" />
<context:property-placeholder location="classpath:config.properties" />
<!-- 自定义配置Service -->
<beans:bean id="sayHelloService" class="com.zhang.service.demoImpl"/>
</beans:beans>
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://code.alibabatech.com/schema/dubbo
http://code.alibabatech.com/schema/dubbo/dubbo.xsd
">
<!-- 系统项目名 -->
<dubbo:application name="DubboDemo" />
<!-- 注册中心 -->
<dubbo:registry protocol="zookeeper" address="${able_zookeeper}" />
<!-- 是否纳入调用统计报表（可选） -->
<dubbo:monitor protocol="registry"/>
<!-- 协议 -->
<dubbo:protocol name="dubbo" port="31581" />
<!-- 服务者与消费者的默认配置 -->
<!-- 延迟到Spring初始化完成后，再暴露服务,服务调用超时设置为6秒,超时不重试 -->
<dubbo:provider delay="-1" timeout="6000" retries="0"/>
<dubbo:consumer timeout="6000" retries="0"/>
</beans>
<?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:service interface="com.zhang.service.demo" ref="sayHelloService" timeout="3000" protocol="dubbo"/>
</beans>
config.properties
#able_zookeeper
able_zookeeper=192.168.50.42:2181
4,java代码 一个接口一个实现类
package com.zhang.service;
public interface demo {
public String sayHello();
}
package com.zhang.service;
public class demoImpl implements demo {
@Override
public String sayHello() {
return "hello";
}
}
三 DubboClient工程
1，pom.xml和web.xml，config.properties配置文件和DubboServer配置一样
2，增加一个消费者配置文件applicationContext-dubbo-consumer.xml，注：这里需要把服务提供者的jar包打入到客户端，打接口就可以
<?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:reference id="demo" interface="com.zhang.service.demo" check="false" protocol="dubbo"/>
</beans>
3，使用
package com.zhang.contr;
import org.springframework.beans.factory.annotation.Autowired;
public class test {
@Autowired
private com.zhang.service.demo demo;
public String testD(){
return demo.sayHello();
}
}
四 dubbo-admin-2.5.4.war 管理控制台
war包下载地址：http://pan.baidu.com/s/1i4xZamD
把这个war包放到tomcat的webapps目录下
1 修改tomcat的端口号不要和其他服务冲突.
2 修改 WEB-INF 下的dubbo.properties文件
3 启动tomcat,访问.
想看源码的提供一个github的访问地址
https://github.com/zqh1989/DubboDemo
