springmvc整合dubbo分布式系统的搭建demo

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

Xml代码


<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代码


<?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代码


<?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代码


<?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代码


<?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

Java代码


#able_zookeeper

able_zookeeper=192.168.50.42:2181

4,java代码 一个接口一个实现类

Java代码


package com.zhang.service;

public interface demo {

public String sayHello();

}

Java代码


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代码


<strong><?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> </strong>

3，使用

Java代码


<strong>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();

}

}

</strong>

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