用 maven 搭建 springmvc + dubbo + zookeeper 框架（生產者、消費者）

首先要根據《maven搭建springmvc（eclipse）》新建3個maven項目：消費者項目（dubbo-consumer）、生產者項目（dubbo-provider）、公共接口項目（dubbo-interface），如圖：

公共接口項目：

接口文件DemoService.java代碼：

package com.shan.interf.service;

public interface DemoService {
	
	String sayHello(String name);
	
}

生產者項目：

pom.xml文件代碼：

<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.shan</groupId>
  <artifactId>dubbo-provider</artifactId>
  <packaging>war</packaging>
  <version>0.0.1-SNAPSHOT</version>
  <name>dubbo-provider Maven Webapp</name>
  <url>http://maven.apache.org</url>
  
  <properties>
      <spring.version>4.1.2.RELEASE</spring.version>
  </properties>
  
  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
    
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-core</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-web</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>${spring.version}</version>
    </dependency>
    
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>javax.servlet-api</artifactId>
        <version>3.1.0</version>
    </dependency>
    
    <dependency>
    	<groupId>com.alibaba</groupId>
    	<artifactId>dubbo</artifactId>
    	<version>2.5.3</version>
    </dependency>
    
    <dependency>
    	<groupId>org.apache.zookeeper</groupId>
    	<artifactId>zookeeper</artifactId>
    	<version>3.3.3</version>
    </dependency>
    
    <dependency>
 		<groupId>log4j</groupId>
 		<artifactId>log4j</artifactId>
 		<version>1.2.15</version>
 		<exclusions>
	  		<exclusion>
		     	<groupId>com.sun.jmx</groupId>
		     	<artifactId>jmxri</artifactId>
	  		</exclusion>
  			<exclusion>
     			<groupId>com.sun.jdmk</groupId>
     			<artifactId>jmxtools</artifactId>
  			</exclusion>
  			<exclusion>
      			<groupId>javax.jms</groupId>
      			<artifactId>jms</artifactId>
  			</exclusion>
 		</exclusions>
	</dependency> 
    
    <dependency>
	    <groupId>com.101tec</groupId>
	    <artifactId>zkclient</artifactId>
	    <version>0.10</version>
	</dependency>
    
  </dependencies>

	<build>
		<finalName>dubbo-provider</finalName>
	    <plugins>
	      <plugin>
	        <groupId>org.apache.maven.plugins</groupId>
	        <artifactId>maven-compiler-plugin</artifactId>
	        <version>3.0</version>
	        <configuration>
	          <source>1.8</source>
	          <target>1.8</target>
	        </configuration>
	      </plugin>
	    </plugins>
	</build>
</project>

dubbo配置文件dubbo-provider.xml代碼：

<?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">  
       
    <!-- 提供方應用名稱信息，這個相當於起一個名字，我們dubbo管理頁面比較清晰是哪個應用暴露出來的 -->  
    <dubbo:application name="dubbo_provider"/>  
    
    <!-- 使用zookeeper註冊中心暴露服務地址 -->  
    <dubbo:registry address="zookeeper://127.0.0.1:2181"/>
    
    <!-- 具體的實現bean -->
    <bean id="demoService" class="com.shan.provider.service.impl.DemoServiceImpl"/>
    
    <!-- 要暴露的服務接口 -->  
    <dubbo:service interface="com.shan.interf.service.DemoService" ref="demoService"/>  
      
</beans>

springmvc配置文件spring-servlet.xml代碼：

<?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:context="http://www.springframework.org/schema/context"
    xmlns:tx="http://www.springframework.org/schema/tx" 
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    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 
       http://www.springframework.org/schema/tx 
       http://www.springframework.org/schema/tx/spring-tx.xsd">

    <!-- 配置掃描的包 -->
    <context:component-scan base-package="com.shan.provider"></context:component-scan>
    
    <!-- 註冊HandlerMapper、HandlerAdapter兩個映射類 -->
    <mvc:annotation-driven />

    <!-- 訪問靜態資源 -->
    <mvc:default-servlet-handler />
    
    <!-- 視圖解析器 -->
    <bean
        class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/view/"></property>
        <property name="suffix" value=".jsp"></property>
    </bean>
    
    <!-- 引用dubbo -->
    <import resource="dubbo-provider.xml"></import>
    
</beans>

接口實現類DemoServiceImpl.java代碼：

package com.shan.provider.service.impl;

import com.shan.interf.service.DemoService;

public class DemoServiceImpl implements DemoService {
	
    public String sayHello(String name) {
        return "Hello Dubbo,Hello " + name;
    }
 
}

生產者啓動類（測試用）Provider.java代碼：

package com.shan.provider;

import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Provider {

	public static void main(String[] args) {
        ClassPathXmlApplicationContext context=new ClassPathXmlApplicationContext(new String[]{"spring-servlet.xml"});
        context.start();
        System.out.println("生產者服務已經註冊成功!");
        try {
            System.in.read();//讓此程序一直跑，表示一直提供服務
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
	
}

注：本地需要安裝zookeeper才能成功啓動，方法參考：《zookeeper 下載、安裝、啓動（windows）》

消費者項目：

pom.xml文件代碼：

<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.shan</groupId>
  <artifactId>dubbo-consumer</artifactId>
  <packaging>war</packaging>
  <version>0.0.1-SNAPSHOT</version>
  <name>dubbo-consumer Maven Webapp</name>
  <url>http://maven.apache.org</url>
  
  <properties>
      <spring.version>4.1.2.RELEASE</spring.version>
  </properties>
  
  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
    
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-core</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-web</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>${spring.version}</version>
    </dependency>
    
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>javax.servlet-api</artifactId>
        <version>3.1.0</version>
    </dependency>
    
    <dependency>
    	<groupId>com.alibaba</groupId>
    	<artifactId>dubbo</artifactId>
    	<version>2.5.3</version>
    </dependency>
    
    <dependency>
    	<groupId>org.apache.zookeeper</groupId>
    	<artifactId>zookeeper</artifactId>
    	<version>3.3.3</version>
    </dependency>
    
    <dependency>
 		<groupId>log4j</groupId>
 		<artifactId>log4j</artifactId>
 		<version>1.2.15</version>
 		<exclusions>
	  		<exclusion>
		     	<groupId>com.sun.jmx</groupId>
		     	<artifactId>jmxri</artifactId>
	  		</exclusion>
  			<exclusion>
     			<groupId>com.sun.jdmk</groupId>
     			<artifactId>jmxtools</artifactId>
  			</exclusion>
  			<exclusion>
      			<groupId>javax.jms</groupId>
      			<artifactId>jms</artifactId>
  			</exclusion>
 		</exclusions>
	</dependency> 
    
    <dependency>
	    <groupId>com.101tec</groupId>
	    <artifactId>zkclient</artifactId>
	    <version>0.10</version>
	</dependency>
    
  </dependencies>

  <build>
    <finalName>dubbo-consumer</finalName>
  </build>
</project>

dubbo配置文件dubbo-consumer.xml代碼：

<?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">
       
    <!-- 提供方應用名稱信息，這個相當於起一個名字，我們dubbo管理頁面比較清晰是哪個應用暴露出來的 -->  
    <dubbo:application name="dubbo_consumer"/>
    
    <!-- 使用zookeeper註冊中心暴露服務地址 -->
    <dubbo:registry address="zookeeper://127.0.0.1:2181" check="true"/>
  	
  	<!-- 生成遠程服務代理，可以像使用本地bean一樣使用 -->
    <dubbo:reference interface="com.shan.interf.service.DemoService" id="demoService"/>  
  
</beans>

springmvc配置文件spring-servlet.xml代碼：

<?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:context="http://www.springframework.org/schema/context"
    xmlns:tx="http://www.springframework.org/schema/tx" 
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    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 
       http://www.springframework.org/schema/tx 
       http://www.springframework.org/schema/tx/spring-tx.xsd">

    <!-- 配置掃描的包 -->
    <context:component-scan base-package="com.shan"></context:component-scan>
    
    <!-- 註冊HandlerMapper、HandlerAdapter兩個映射類 -->
    <mvc:annotation-driven />

    <!-- 訪問靜態資源 -->
    <mvc:default-servlet-handler />
    
    <!-- 視圖解析器 -->
    <bean
        class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/view/"></property>
        <property name="suffix" value=".jsp"></property>
    </bean>
    
    <!-- 引用dubbo -->
    <import resource="dubbo-consumer.xml"></import>
    
</beans>

消費者調用生產者測試類Consumer.java，代碼：

package com.shan.consumer;

import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.shan.interf.service.DemoService;

public class Consumer {

	public static void main(String[] args) {
		ClassPathXmlApplicationContext context=new ClassPathXmlApplicationContext(new String[]{"spring-servlet.xml"});
        context.start();
        DemoService demoService = (DemoService)context.getBean("demoService");  
        String hello = demoService.sayHello("world"); 
        System.out.println(hello);
    }
	
}

執行結果：

生產者項目與消費者項目都需要引用公用接口項目。

生產者項目啓動結果，如圖：

消費者項目調用生產者結果，如圖：

用 maven 搭建 springmvc + dubbo + zookeeper 框架（生產者、消費者）

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