[Dubbo开发]配置简单的生产者和消费者
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配置好jdk1.7、Zookeeper和Maven環境之后,開始嘗試第一次搭建簡單的dubbo生產者和消費者。
dubbo服務的原理,引用經典的官方圖(cr.Dubbo官網):
關于Dubbo的原理和機制,在此不做贅述,具體可以查詢官方文檔:http://dubbo.apache.org/#!/?lang=zh-cn。
接下來開始搭建生產者和消費者。
1.生產者(Provider)
創建一個maven項目,
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代碼如下:
(1)接口ProviderService.java
package com.mohrss.service;public interface ProviderService {public void sayHello(); }(2)實現類ProviderServiceImpl.java
package com.mohrss.service.impl;import com.mohrss.service.ProviderService;import org.springframework.stereotype.Service;@Service("providerService") public class ProviderServiceImpl implements ProviderService {public void sayHello() {// TODO Auto-generated method stubSystem.out.println("Hello I am Provider");}}(3)程序入口TestProviderService.java
package com.mohrss.service;import org.springframework.context.support.ClassPathXmlApplicationContext;public class TestProviderService {public static void main(String[] args) {ClassPathXmlApplicationContext context=new ClassPathXmlApplicationContext(new String[]{"dubbo-provider.xml"});context.start();System.out.println("生產者服務已經注冊成功!");try {System.in.read();//讓此程序一直跑,表示一直提供服務} catch (Exception e) {e.printStackTrace();}} }(4)dubbo配置文件dubbo-provider.xml
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context"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.xsdhttp://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd "> <!--用注解方式實現bean--><context:component-scan base-package="com.mohrss.service"> <context:include-filter type="annotation" expression="org.springframework.stereotype.Service"/> </context:component-scan><!-- 提供方應用信息,用于計算依賴關系 --> <dubbo:application name="provider" /> <!-- 使用zookeeper注冊中心暴露服務地址 --> <dubbo:registry address="zookeeper://127.0.0.1:2181" /> <!-- 用dubbo協議在20880端口暴露服務 --> <dubbo:protocol name="dubbo" port="29014" /> <!-- 聲明需要暴露的服務接口 --> <dubbo:service interface="com.mohrss.service.ProviderService" ref="providerService" /> </beans>(5)依賴文件配置pom.xml
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<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.mohrss</groupId><artifactId>provider</artifactId><version>0.0.1-SNAPSHOT</version><properties> <spring.version>4.3.2.RELEASE</spring.version> </properties> <dependencies> <dependency> <groupId>com.alibaba</groupId> <artifactId>dubbo</artifactId> <version>2.5.6</version> </dependency> <dependency> <groupId>com.github.sgroschupf</groupId> <artifactId>zkclient</artifactId> <version>0.1</version> </dependency> </dependencies> </project>2.消費者(Consumer)
?消費者搭建和生產者相同的maven項目
(1)TestConsumerService.java
package com.mohrss.consumer;import java.io.IOException;import org.springframework.context.support.ClassPathXmlApplicationContext;import com.mohrss.service.ProviderService;public class TestConsumerService {public static void main(String[] args) {ClassPathXmlApplicationContext context=new ClassPathXmlApplicationContext(new String[]{"dubbo-consumer.xml"});context.start();ProviderService testService = (ProviderService) context.getBean("testProviderService");testService.sayHello();try {System.in.read();} catch (IOException e) { e.printStackTrace();} } }(2)dubbo-consumer.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 "> <!-- 消費方應用名,用于計算依賴關系,不是匹配條件,不要與提供方一樣 --> <dubbo:application name="consumer" /> <!-- 使用multicast廣播注冊中心暴露發現服務地址 --> <dubbo:registry protocol="zookeeper" address="127.0.0.1:2181" /> <!-- 生成遠程服務代理,可以和本地bean一樣使用demoService --> <dubbo:reference id="testProviderService" interface="com.mohrss.service.ProviderService" /> </beans>3.啟動zookeeper,右鍵啟動TestProviderService.java,將看到生產者成功注冊:
然后右鍵TestConsumerService.java, Run as Application,將看到:
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注意:消費者調用服務方接口,應當將provider編譯成jar包放到消費者中進行引用,此處為了方便,直接引用了生產者的接口文件ProviderService.java
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注:原創博客,轉載請注明。
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轉載于:https://www.cnblogs.com/Vivianwang/p/9408493.html
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