dubbo分布式搭建

Spring mvc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  

1. <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
2.   xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">  
3.   <modelVersion>4.0.0</modelVersion>  
4.   <groupId>com.zhang.dubboServer</groupId>  
5.   <artifactId>dubboServer</artifactId>  
6.   <packaging>war</packaging>  
7.   <version>0.0.1-SNAPSHOT</version>  
8.   <name>dubboServer Maven Webapp</name>  
9.   <url>http://maven.apache.org</url>  
10.   <dependencies>  
11.     <dependency>  
12.       <groupId>junit</groupId>  
13.       <artifactId>junit</artifactId>  
14.       <version>3.8.1</version>  
15.       <scope>test</scope>  
16.     </dependency>  
17.     <dependency>    
18.         <groupId>javax.servlet</groupId>    
19.         <artifactId>servlet-api</artifactId>    
20.         <version>2.4</version>    
21.       </dependency>    
22.       <dependency>    
23.         <groupId>javax.servlet.jsp</groupId>    
24.         <artifactId>jsp-api</artifactId>    
25.         <version>2.1</version>    
26.       </dependency>  
27.       <dependency>  
28.         <groupId>org.springframework</groupId>  
29.         <artifactId>spring-context</artifactId>  
30.          <version>4.1.6.RELEASE</version>  
31.      </dependency>  
32.       <dependency>    
33.         <groupId>org.springframework</groupId>    
34.         <artifactId>spring-context</artifactId>    
35.         <version>4.1.6.RELEASE</version>    
36.       </dependency>    
37.       <dependency>    
38.         <groupId>org.springframework</groupId>    
39.         <artifactId>spring-webmvc</artifactId>    
40.         <version>4.1.6.RELEASE</version>    
41.       </dependency>  
42.       <dependency>    
43.         <groupId>jstl</groupId>    
44.         <artifactId>jstl</artifactId>    
45.         <version>1.2</version>    
46.     </dependency>   
47.     <dependency>  
48.         <groupId>dubbo</groupId>  
49.         <artifactId>dubbo</artifactId>  
50.         <version>2.5.3</version>  
51.     </dependency>  
52.     <dependency>  
53.       <groupId>javassist</groupId>  
54.       <artifactId>javassist</artifactId>  
55.       <version>3.15.0-GA</version>  
56.       <classifier>GA</classifier>  
57.     </dependency>  
58.     <dependency>  
59.         <groupId>netty</groupId>  
60.         <artifactId>netty</artifactId>  
61.         <version>3.2.5.Final</version>  
62.     </dependency>  
63.     <dependency>  
64.         <groupId>log4j</groupId>  
65.         <artifactId>log4j</artifactId>  
66.         <version>1.2.17</version>  
67.     </dependency>  
68.     <dependency>  
69.         <groupId>zkclient</groupId>  
70.         <artifactId>zkclient</artifactId>  
71.         <version>0.4</version>  
72.     </dependency>  
73.     <dependency>  
74.         <groupId>zookeeper</groupId>  
75.         <artifactId>zookeeper</artifactId>  
76.         <version>3.3.1</version>  
77.     </dependency>  
78.   </dependencies>  
79.   <build>  
80.     <finalName>dubboServer</finalName>  
81.   </build>  
82. </project>  

 

2.web.xml

Xml代码  

1. <?xml version="1.0" encoding="UTF-8"?>  
2.   
3. <web-app  
4.         xmlns="http://java.sun.com/xml/ns/javaee"  
5.         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
6.         xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"  
7.         version="3.0"  
8.         metadata-complete="false">  
9.     <context-param>  
10.         <param-name>contextConfigLocation</param-name>  
11.         <param-value>/WEB-INF/spring/springmvc-config.xml;classpath*:dubbo/*.xml</param-value>  
12.     </context-param>  
13.     <listener>  
14.         <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>  
15.     </listener>  
16.     <servlet>  
17.         <servlet-name>DispatcherServlet</servlet-name>  
18.         <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>  
19.         <init-param>  
20.             <param-name>contextConfigLocation</param-name>  
21.             <param-value>/WEB-INF/spring/springmvc-config.xml</param-value>  
22.         </init-param>  
23.         <load-on-startup>1</load-on-startup>  
24.         <async-supported>true</async-supported>  
25.     </servlet>  
26.   
27.     <servlet-mapping>  
28.         <servlet-name>DispatcherServlet</servlet-name>  
29.         <url-pattern>/</url-pattern>  
30.     </servlet-mapping>  
31.       
32.     <filter>  
33.          <filter-name>CharacterEncodingFilter</filter-name>  
34.           <filter-class>  
35.             org.springframework.web.filter.CharacterEncodingFilter  
36.          </filter-class>  
37.          <async-supported>true</async-supported>  
38.          <init-param>  
39.                 <param-name>encoding</param-name>  
40.                 <param-value>UTF-8</param-value>  
41.          </init-param>  
42.          <init-param>  
43.               <param-name>forceEncoding</param-name>  
44.               <param-value>true</param-value>  
45.          </init-param>  
46.     </filter>  
47.     <filter-mapping>  
48.          <filter-name>CharacterEncodingFilter</filter-name>  
49.          <url-pattern>/*</url-pattern>  
50.     </filter-mapping>   
51.   
52.   
53. </web-app>  

 3,spring和dubbo配置文件

Xml代码  

1. <?xml version="1.0" encoding="UTF-8"?>  
2. <beans:beans xmlns="http://www.springframework.org/schema/mvc"  
3.     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
4.     xmlns:beans="http://www.springframework.org/schema/beans"  
5.     xmlns:context="http://www.springframework.org/schema/context"  
6.     xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd  
7.         http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd  
8.         http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">  
9.   
10.   
11.     <!-- Handles HTTP GET requests for /resources/** by efficiently serving up static resources in the ${webappRoot}/resources directory -->  
12.     <resources mapping="/resources/**" location="/resources/" />  
13.   
14.     <!-- Enables the Spring MVC @Controller programming model -->  
15.     <annotation-driven ></annotation-driven>  
16.     <!--spring 自动扫描com.zhang下边的所有类  -->  
17.     <context:component-scan base-package="com.zhang" />  
18.   
19.     <context:property-placeholder location="classpath:config.properties" />  
20.     <!-- 自定义配置Service -->  
21.     <beans:bean id="sayHelloService" class="com.zhang.service.demoImpl"/>  
22.       
23.       
24. </beans:beans>  

 

Xml代码  

1. <?xml version="1.0" encoding="UTF-8"?>    
2. <beans xmlns="http://www.springframework.org/schema/beans"    
3.     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"    
4.     xsi:schemaLocation="http://www.springframework.org/schema/beans    
5.         http://www.springframework.org/schema/beans/spring-beans.xsd    
6.         http://code.alibabatech.com/schema/dubbo    
7.         http://code.alibabatech.com/schema/dubbo/dubbo.xsd  
8.         ">    
9.     <!-- 系统项目名 -->    
10.     <dubbo:application name="DubboDemo" />    
11.     
12.     <!-- 注册中心 -->    
13.     <dubbo:registry protocol="zookeeper" address="${able_zookeeper}"  />    
14.     <!-- 是否纳入调用统计报表（可选） -->  
15.     <dubbo:monitor protocol="registry"/>  
16.       
17.     <!-- 协议 -->  
18.     <dubbo:protocol name="dubbo" port="31581" />  
19.   
20.     <!-- 服务者与消费者的默认配置 -->  
21.     <!-- 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   -->    
22.     <dubbo:provider delay="-1" timeout="6000" retries="0"/>  
23.     <dubbo:consumer timeout="6000" retries="0"/>  
24. </beans>  

 

Xml代码  

1. <?xml version="1.0" encoding="UTF-8"?>    
2. <beans xmlns="http://www.springframework.org/schema/beans"    
3.     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"    
4.     xsi:schemaLocation="http://www.springframework.org/schema/beans    
5.         http://www.springframework.org/schema/beans/spring-beans.xsd    
6.         http://code.alibabatech.com/schema/dubbo    
7.         http://code.alibabatech.com/schema/dubbo/dubbo.xsd  
8.         ">  
9.     <dubbo:service interface="com.zhang.service.demo" ref="sayHelloService"  timeout="3000" protocol="dubbo"/>  
10. </beans>      

config.properties

Java代码  

1. #able_zookeeper  
2. able_zookeeper=192.168.50.42:2181  

4,java代码 一个接口一个实现类

Java代码  

1. package com.zhang.service;  
2.   
3. public interface demo {  
4.     public String sayHello();  
5. }  

 

Java代码  

1. package com.zhang.service;  
2.   
3. public class demoImpl implements demo {  
4.   
5.     @Override  
6.     public String sayHello() {  
7.         return "hello";  
8.     }  
9.   
10. }  

 

 

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  

1. <strong><?xml version="1.0" encoding="UTF-8"?>    
2. <beans xmlns="http://www.springframework.org/schema/beans"    
3.     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"    
4.     xsi:schemaLocation="http://www.springframework.org/schema/beans    
5.         http://www.springframework.org/schema/beans/spring-beans.xsd    
6.         http://code.alibabatech.com/schema/dubbo    
7.         http://code.alibabatech.com/schema/dubbo/dubbo.xsd">  
8.   
9.     <dubbo:reference id="demo" interface="com.zhang.service.demo" check="false" protocol="dubbo"/>  
10. </beans> </strong>  

 3，使用

Java代码  

1. <strong>package com.zhang.contr;  
2.   
3. import org.springframework.beans.factory.annotation.Autowired;  
4.   
5.   
6. public class test {  
7.     @Autowired  
8.     private com.zhang.service.demo demo;  
9.       
10.     public String testD(){  
11.         return demo.sayHello();  
12.     }  
13. }  
14. </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

 

参考：http://blog.csdn.net/xiongzhichao/article/details/50611347