官方地址Dubbo.io
Dubbo 主要功能
高并发的负载均衡,多系统的兼容合并(理解不深,不瞎掰了)
Dubbo 主要组成有四部分
Zookeeper(服务注册中心)
Consumer(服务消费方)
Provider(服务提供方)
Admin(管理平台)
搭建一个Demo
1.下载一个zookeeper (3.3.6稳定版)修改conf下的配置文件
拷贝一份zoo_sample.cfg 文件并重命名为zoo.cfg 修改配置
如图:
使用的是默认端口号2181
服务提供方service-provider (借鉴官方demo)
服务方由四部分组成 :
//pom.xml文件依赖 <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/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.pikzas</groupId> <artifactId>dubboProvider</artifactId> <packaging>war</packaging> <version>1.0-SNAPSHOT</version> <name>dubboProvider Maven Webapp</name> <url>http://maven.apache.org</url> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <spring.version>3.1.4.RELEASE</spring.version> <slf4j.version>1.6.6</slf4j.version> </properties> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>3.8.1</version> <scope>test</scope> </dependency> <!-- Spring --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aop</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-support</artifactId> <version>2.0.8</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-asm</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</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-context</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-expression</artifactId> <version>${spring.version}</version> </dependency> <!-- spring end --> <!-- log --> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>1.2.16</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>${slf4j.version}</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>${slf4j.version}</version> </dependency> <!-- dubbo --> <dependency> <groupId>com.alibaba</groupId> <artifactId>dubbo</artifactId> <version>2.5.3</version> </dependency> <!-- zkclient --> <dependency> <groupId>com.github.sgroschupf</groupId> <artifactId>zkclient</artifactId> <version>0.1</version> </dependency> <!-- zookeeper --> <dependency> <groupId>org.apache.zookeeper</groupId> <artifactId>zookeeper</artifactId> <version>3.3.6</version> </dependency> <!--jmail--> <dependency> <groupId>jmail</groupId> <artifactId>jmail</artifactId> <version>1.0</version> </dependency> <dependency> <groupId>net.spy</groupId> <artifactId>spymemcached</artifactId> <version>2.11.4</version> </dependency> </dependencies> <build> <finalName>dubboProvider</finalName> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>2.1</version> <configuration> <source>1.5</source> <target>1.5</target> <encoding>UTF-8</encoding> <failOnError>false</failOnError> </configuration> </plugin> </plugins> </build> </project>
<?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 "> <dubbo:application name="hello-world-app" /> <!-- 本机 伪集群 测试 --> <dubbo:registry protocol="zookeeper" address="127.0.0.1:2181" /> <dubbo:protocol name="dubbo" port="20880" /> <dubbo:service interface="com.dubboProvider.service.EmailService" ref="emailService" /> <!-- 和本地bean一样实现服务 --> <bean id="emailService" class="com.dubboProvider.service.impl.EmailServiceImpl" /> </beans>
//提供服务的接口: /** * Created by pikzas on 2016/5/5. */ public interface EmailService { /** * 发送邮件的公用方法 * @param message 发送的邮件 * @return */ boolean sendEmail(EmailMessage message,SenderInfo senderInfo); }
//提供服务的接口实现类 /** * Created by pikzas on 2016/5/5. */ public class EmailServiceImpl implements EmailService { /** * 发送邮件的共用方法 * @param message 发送的邮件 * @return */ public boolean sendEmail(EmailMessage message,SenderInfo senderInfo){ return flag; }
//开启服务的main方法 /** * Created by pikzas on 2016/5/5. */ public class Start { public static void main(String[] args) throws IOException{ ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(new String[]{"applicationProvider.xml"});
context.start(); System.out.println("按任意键退出"); System.in.read(); } }怎么切换出去 我日