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