Dubbox服务的提供方开发

（1）创建Maven工程（WAR）dubboxdemo-service  ，在pom.xml中引入依赖

<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/xsd/maven-4.0.0.xsd">

  <modelVersion>4.0.0</modelVersion>

  <groupId>cn.itcast.dubboxdemo</groupId>

  <artifactId>dubboxdemo-service</artifactId>

  <version>0.0.1-SNAPSHOT</version>

  <packaging>war</packaging> 

   <properties>     

        <spring.version>4.2.4.RELEASE</spring.version>

   </properties>   

    <dependencies>

        <!-- Spring -->

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-context</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-webmvc</artifactId>

            <version>${spring.version}</version>

        </dependency>

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-jdbc</artifactId>

            <version>${spring.version}</version>

        </dependency>

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-aspects</artifactId>

            <version>${spring.version}</version>

        </dependency>

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-jms</artifactId>

            <version>${spring.version}</version>

        </dependency>

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-context-support</artifactId>

            <version>${spring.version}</version>

        </dependency>   

        <!-- dubbo相关 -->

        <dependency>

            <groupId>com.alibaba</groupId>

            <artifactId>dubbo</artifactId>

            <version>2.8.4</version>        

        </dependency>

        <dependency>

            <groupId>org.apache.zookeeper</groupId>

            <artifactId>zookeeper</artifactId>

            <version>3.4.6</version>

        </dependency>

        <dependency>

            <groupId>com.github.sgroschupf</groupId>

            <artifactId>zkclient</artifactId>

            <version>0.1</version>

        </dependency>       

        <dependency>

            <groupId>javassist</groupId>

            <artifactId>javassist</artifactId>

            <version>3.11.0.GA</version>

        </dependency>       

    </dependencies>

   <build> 

      <plugins>

          <plugin> 

              <groupId>org.apache.maven.plugins</groupId> 

              <artifactId>maven-compiler-plugin</artifactId> 

              <version>2.3.2</version> 

              <configuration> 

                  <source>1.7</source> 

                  <target>1.7</target> 

              </configuration> 

          </plugin> 

          <plugin>

                <groupId>org.apache.tomcat.maven</groupId>

                <artifactId>tomcat7-maven-plugin</artifactId>

                <configuration>

                    <!-- 指定端口 -->

                    <port>8081</port>

                    <!-- 请求路径 -->

                    <path>/</path>

                </configuration>

          </plugin>

      </plugins> 

    </build>

</project>

 

（2）在工程的webapps下创建WEB-INF文件夹，创建web.xml

<?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"

    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"

    version="2.5">  

    <!-- 加载spring容器 -->

    <context-param>

        <param-name>contextConfigLocation</param-name>

        <param-value>classpath:applicationContext*.xml</param-value>

    </context-param>

    <listener>       <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>

    </listener> 

</web-app>

 

（3）创建业务接口

创建包cn.itcast.dubbodemo.service，用于存放业务接口，创建接口

package cn.itcast.dubbodemo.service;

/**

 * 业务接口

 * @author Administrator

 *

 */

public interface UserService {   

    public String getName();

}

（4）创建业务实现类

创建包cn.itcast.dubbodemo.service.impl ，用于存放业务实现类。创建业务实现类：

package cn.itcast.dubbodemo.service.impl;

import com.alibaba.dubbo.config.annotation.Service;

import cn.itcast.dubbodemo.service.UserService;

@Service

public class UserServiceImpl implements UserService {

    public String getName() {   

        return "itcast";

    }

}

注意：Service注解与原来不同，需要引入com.alibaba包下的

（5）编写配置文件

在src/main/resources下创建applicationContext-service.xml ,内容如下：

<?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:p="http://www.springframework.org/schema/p"

    xmlns:context="http://www.springframework.org/schema/context"

    xmlns:dubbo="http://code.alibabatech.com/schema/dubbo" xmlns:mvc="http://www.springframework.org/schema/mvc"

    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd

        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd

        http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd

        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">

    

    <dubbo:application name="dubboxdemo-service"/> 

<dubbo:registry address="zookeeper://192.168.25.132:2181"/>

<dubbo:annotation package="cn.itcast.dubboxdemo.service" />

</beans>

注意：dubbo:annotation用于扫描@Service注解。

（6）测试运行

tomcat7:run