Dubbo学习笔记(三) Provider和Consumer

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Dubbo学习笔记(三) Provider和Consumer

Provider

这里我们使用spring-boot来作为框架，搭建dubbo服务。

新建maven工程，在pom中加入

<?xml version="1.0" encoding="UTF-8"?><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>com.skyon</groupId>    <artifactId>dubboProducer</artifactId>    <version>1.0-SNAPSHOT</version>    <packaging>jar</packaging>    <properties>        <jedis.version>2.0.0</jedis.version>        <mainClass>SpringApplicationC</mainClass>    </properties>    <parent>        <groupId>org.springframework.boot</groupId>        <artifactId>spring-boot-starter-parent</artifactId>        <version>1.5.2.RELEASE</version>    </parent>    <dependencies>        <dependency>            <groupId>org.springframework.boot</groupId>            <artifactId>spring-boot-starter-web</artifactId>        </dependency>        <dependency>            <groupId>com.alibaba</groupId>            <artifactId>dubbo</artifactId>            <exclusions>                <!-- 排除依赖，否则启动会报错 -->                <exclusion>                    <artifactId>spring</artifactId>                    <groupId>org.springframework</groupId>                </exclusion>            </exclusions>            <version>2.5.3</version>        </dependency>        <!-- 这里是为了增加对zookeeper的注册和订阅 -->        <dependency>            <groupId>org.apache.zookeeper</groupId>            <artifactId>zookeeper</artifactId>            <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>            <version>3.4.5</version>        </dependency>        <!-- 必须作为实现 -->        <dependency>            <groupId>com.github.sgroschupf</groupId>            <artifactId>zkclient</artifactId>            <version>0.1</version>        </dependency>        <dependency>            <groupId>redis.clients</groupId>            <artifactId>jedis</artifactId>            <version>${jedis.version}</version>        </dependency>        <!-- redis配置的时候需要使用 -->        <!--<dependency>            <groupId>org.apache.commons</groupId>            <artifactId>commons-pool2</artifactId>            <version>2.4.2</version>        </dependency>-->        <!-- 需要web容器        <dependency>            <groupId>com.caucho</groupId>            <artifactId>hessian</artifactId>            <version>4.0.7</version>        </dependency>-->    </dependencies>    <build>        <plugins>            <plugin>                <!-- 这是spring boot的一个plugin，可以直接生成可运行的jar包 -->                <groupId>org.springframework.boot</groupId>                <artifactId>spring-boot-maven-plugin</artifactId>                <version>1.5.2.RELEASE</version>                <executions>                    <execution>                        <goals>                            <goal>repackage</goal>                        </goals>                        <configuration>                            <mainClass>${mainClass}</mainClass>                            <!-- 避免直接覆盖maven package生成的jar包 -->                            <classifier>exec</classifier>                        </configuration>                    </execution>                </executions>            </plugin>            <plugin>                <artifactId>maven-failsafe-plugin</artifactId>                <executions>                    <execution>                        <goals>                            <goal>integration-test</goal>                            <goal>verify</goal>                        </goals>                    </execution>                </executions>            </plugin>        </plugins>    </build></project>

在src/main/resources下面新建dubbo提供方服务的provider.xml

<?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">        <!-- 提供方应用信息，用于计算依赖关系 -->        <dubbo:application name="dubboProducer"  />        <!-- 使用multicast广播注册中心暴露服务地址 -->        <dubbo:registry id="multicastRegistry" address="multicast://224.5.6.7:1234" />        <dubbo:registry id="zookeeperRegistry" address="zookeeper://192.168.23.128:2181" client="zkclient"/>        <dubbo:registry id="redisRegistry" address="redis://192.168.23.128:6379" />        <!-- 用dubbo协议在20880端口暴露服务 -->        <dubbo:protocol name="dubbo" port="20880" />        <dubbo:protocol id="rmi1" name="rmi" port="1099" />        <!-- 声明需要暴露的服务接口 -->        <dubbo:service interface="com.skyon.pms.service.ActivityService" ref="activityService"                       registry="multicastRegistry, zookeeperRegistry, redisRegistry"                        protocol="dubbo, rmi1" />        <!-- 和本地bean一样实现服务 -->        <bean id="activityService" class="com.skyon.pms.serviceImpl.ActivityServiceImpl" /></beans>

到这里，其他dubbo已经配置完成了，其他就是正常的service和实现，以及spring boot启动应用即可。

Consumer

首先将provider提供service的service接口和涉及的对象拷贝给Consume工程。
修改POM文件, 基本服务提供者一致

然后在src/main/resources下新建Provider类，然后就可以通过各种注册中心和协议获得对应接口的代理，然后就可以调用然后返回值。

<?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">    <!-- 消费方应用名，用于计算依赖关系，不是匹配条件，不要与提供方一样 -->    <dubbo:application name="dubboConsumer"  />    <!-- 使用multicast广播注册中心暴露发现服务地址 -->    <dubbo:registry id="multicastRegistry" address="multicast://224.5.6.7:1234" />    <dubbo:registry id="zookeeperRegistry" address="zookeeper://192.168.23.128:2181" client="zkclient"/>    <dubbo:registry id="redisRegistry" address="redis://192.168.23.128:6379" />    <!--<dubbo:registry address="" />    <dubbo-->    <!-- 生成远程服务代理，可以和本地bean一样使用demoService -->    <!--<dubbo:reference id="activityService" interface="com.skyon.pms.service.ActivityService" registry="multicastRegistry"/> -->    <dubbo:reference id="activityService1" interface="com.skyon.pms.service.ActivityService"                     registry="zookeeperRegistry" protocol="dubbo"/>    <dubbo:reference id="activityService2" interface="com.skyon.pms.service.ActivityService"                     registry="redisRegistry" protocol="rmi"/></beans>

具体工程在: dubbo_exmaple

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