dubbo spring 的使用

1：项目的架构，本项目使用的maven，分为三个模块。

api 为接口 ， server 为服务端   consumer 为调用端

2：api的模块结构

该模块主要是定义接口和实体。没什么具体介绍的。

3：server的模块结构

impl：api接口的实现类 。DubboServer：服务启动 。dubbo.xml配置详情。log 打印日志信息

pom文件代码

    <dependencies>
        <dependency>
            <groupId>com.mav</groupId>
            <artifactId>dubbo_api</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
 
        <!-- 引入spring的jar -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>4.0.2.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>4.0.2.RELEASE</version>
        </dependency>
 
        <!-- 引入zk -->
        <dependency>
            <groupId>com.101tec</groupId>
            <artifactId>zkclient</artifactId>
            <version>0.3</version>
        </dependency>
        <dependency>
            <groupId>org.apache.zookeeper</groupId>
            <artifactId>zookeeper</artifactId>
            <version>3.4.5</version>
        </dependency>
 
        <!-- 引入dubbo -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>dubbo</artifactId>
            <version>2.5.7</version>
            <scope>compile</scope>
            <exclusions>
                <exclusion>
                    <artifactId>spring</artifactId>
                    <groupId>org.springframework</groupId>
                </exclusion>
            </exclusions>
        </dependency>
    </dependencies>

dubbo.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:context="http://www.springframework.org/schema/context"
       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://www.springframework.org/schema/context
                        http://www.springframework.org/schema/context/spring-context-3.1.xsd
     http://code.alibabatech.com/schema/dubbo
     http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
 
    <!-- 扫描包 -->
    <context:component-scan base-package="com.enjoy.service"/>
 
    <!-- 应用程序名称 -->
    <dubbo:application name="dubboServerApp" />
 
    <!-- 注册中心 -->
    <dubbo:registry address="zookeeper://192.168.30.128:2181" />
 
    <!-- 注册协议 -->
    <dubbo:protocol port="20881" name="rmi" />
    <dubbo:protocol port="20882" name="dubbo" />
 
    <!-- 暴露服务  interface 接口全路径  ref  实现类 -->
    <dubbo:service interface="com.enjoy.service.OrderService" ref="orderService" protocol="dubbo" />
 
</beans>

impl实现类代码

@Service("orderService")
public class OrderServiceImpl implements OrderService {
 
    public Integer bugShop(Integer money) {
        System.out.println("money的数值："+money);
        return money+1;
    }
}

启动类代码

public class DubboServer {
 
    public static void main(String[] args) {
        //启动dubbo
        ClassPathXmlApplicationContext context =
                new ClassPathXmlApplicationContext("classpath:dubbo.xml");
        context.start();
 
        System.out.println("-----dubbo开启-----");
 
        // 保证服务一直开着
        synchronized (DubboServer.class) {
            try {
                DubboServer.class.wait();
            } catch (Throwable e) {
            }
        }
    }
}

3：调用端的结构 目录结构和服务端差不多一样，只不过少了实现类，调用者直接调用。pom文件都是一样的。

调用者主要是dubbo.xml不一样

<?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: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://www.springframework.org/schema/context
                        http://www.springframework.org/schema/context/spring-context-3.1.xsd
     http://code.alibabatech.com/schema/dubbo
     http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
 
    <!-- 应用程序名称 -->
    <dubbo:application name="dubboConsumerApp" />
 
    <!-- 注册中心 -->
    <dubbo:registry address="zookeeper://192.168.30.128:2181" />
 
    <!-- 注册协议 -->
    <dubbo:protocol port="20881" name="rmi" />
    <dubbo:protocol port="20882" name="dubbo" />
 
    <!-- 暴露服务  interface 接口全路径  id  spring的ID -->
    <dubbo:reference id="orderService" interface="com.enjoy.service.OrderService" protocol="dubbo" />
 
</beans>

测试类

public class DubboConsumer {
    public static void main(String[] args) {
        ClassPathXmlApplicationContext context =
                new ClassPathXmlApplicationContext("classpath:dubbo.xml");
 
        context.start();
 
        OrderService orderService = (OrderService)context.getBean("orderService");
        Integer order = orderService.bugShop(1);
        System.out.println(order);
 
    }
}

以上就是dubbo spring的使用。