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Dubbo--基于Zookeeper服务与Spring集成

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Dubbo Zookeeper Spring 
  • 1.部署dubbo服务管理中心
  • 2.搭建dubbo服务环境
    • 2.1 pom.xml 依赖
    • 2.2 log4j.properties 日志打印
  • 3.api模块定义公共接口
  • 4.dubbo-provider实现接口提供服务
    • 4.1 DemoServiceImpl.java 服务实现
    • 4.2 dubbo-provider.xml 服务配置
    • 4.3 spring.xml 配置
    • 4.4 启动服务
  • 5.dubbo-consumer消费服务
    • 5.1 dubbo-consumer.xml
    • 5.2 spring.xml
    • 5.3 启动consumer
  • 参考资料

搭建dubbo微服务需要使用zookeeper作为服务注册中心,首先要搭建好zookeeper,安装方式参考zookeeper安装教程

1.部署dubbo服务管理中心

下载 dubbo-admin-2.6.0.war, 放在/apache-tomcat-8.5.34/webapps 目录下,启动tomcat服务,浏览器访问:http://192.168.37.220:8080/dubbo-admin-2.6.0/ (修改成自己ip进行访问),用户名root 密码root

 

2.搭建dubbo服务环境

搭建服务需要3个项目:

  • api项目,定义公共接口
  • dubbo-provider项目,提供服务
  • dubbo-consumer项目,消费服务

可以使用maven创建多模块项目来模拟,不会创建maven多模块,自行度娘...

pom依赖和log4j日志打印配置

2.1 pom.xml 依赖

<?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">
<parent>
<artifactId>lyfcode</artifactId>
<groupId>com.lyf</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion> <artifactId>dubbo-provider</artifactId> <name>dubbo-provider</name> <properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties> <dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.lyf</groupId>
<artifactId>api</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
<!-- spring 核心jar -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>4.3.2.RELEASE</version>
</dependency> <!-- spring 测试jar -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>4.3.2.RELEASE</version>
</dependency> <!-- spring jdbc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>4.3.2.RELEASE</version>
</dependency> <!-- spring事物 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>4.3.2.RELEASE</version>
</dependency> <!-- aspectj切面编程的jar -->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.8.9</version>
</dependency> <!-- 日志打印相关的jar -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.7.2</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.2</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>dubbo</artifactId>
<version>2.5.3</version>
</dependency>
<dependency>
<groupId>org.apache.zookeeper</groupId>
<artifactId>zookeeper</artifactId>
<version>3.3.3</version>
</dependency>
<!-- zookeeper client依赖，用于向zookeeper注册服务 -->
<dependency>
<groupId>com.github.sgroschupf</groupId>
<artifactId>zkclient</artifactId>
<version>0.1</version>
</dependency> </dependencies> <build>
</build>
</project>

2.2 log4j.properties 日志打印

log4j.rootLogger=DEBUG, Console
#Console
log4j.appender.Console=org.apache.log4j.ConsoleAppender
log4j.appender.Console.layout=org.apache.log4j.PatternLayout
log4j.appender.Console.layout.ConversionPattern=%d [%t] %-5p [%c] - %m%n
log4j.logger.java.sql.ResultSet=INFO
log4j.logger.org.apache=INFO
log4j.logger.java.sql.Connection=DEBUG
log4j.logger.java.sql.Statement=DEBUG
log4j.logger.java.sql.PreparedStatement=DEBUG

3.api模块定义公共接口

package com.lyf.dubbo.service;public interface DemoService {
String sayHello(String name);
}

4.dubbo-provider实现接口提供服务

4.1 DemoServiceImpl.java 服务实现

package com.lyf.dubbo.service.service;import com.lyf.dubbo.service.DemoService;public class DemoServiceImpl implements DemoService { public String sayHello(String name) {
System.out.println("服务接收: "+name);
return "Hello " + name;
}}

4.2 dubbo-provider.xml 服务配置

<?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="admin-provider" owner="admin" organization="dubbox" /> <!-- 使用multicast广播注册中心暴露服务地址 -->
<dubbo:registry address="zookeeper://192.168.37.220:2181" /> <!-- 用dubbo协议在20880端口暴露服务 -->
<dubbo:protocol name="dubbo" port="20880" /> <!-- 和本地bean一样实现服务 -->
<bean id="demoService" class="com.lyf.dubbo.service.service.DemoServiceImpl" /> <!-- 声明需要暴露的服务接口 -->
<dubbo:service interface="com.lyf.dubbo.service.DemoService" ref="demoService" />
</beans>

4.3 spring.xml 配置

<?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:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:task="http://www.springframework.org/schema/task"
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.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/task
http://www.springframework.org/schema/task/spring-task.xsd"> <context:component-scan base-package="com.lyf"/> <import resource="dubbo-provider.xml"/></beans>

4.4 启动服务

package com.lyf;import org.springframework.context.support.ClassPathXmlApplicationContext;public class Provider { public static void main(String[] args) throws Exception {
ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("spring.xml");
context.start();
System.out.println("provider start ...");
System.in.read(); // 按任意键退出
}}

 
 

5.dubbo-consumer消费服务

5.1 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="admin-consumer" owner="admin" organization="dubbox" /> <!-- 使用multicast广播注册中心暴露发现服务地址 -->
<dubbo:registry address="zookeeper://192.168.37.220:2181" /> <!-- 生成远程服务代理，可以和本地bean一样使用demoService -->
<dubbo:reference id="demoService" interface="com.lyf.dubbo.service.DemoService" /></beans>

5.2 spring.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:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:task="http://www.springframework.org/schema/task"
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.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/task
http://www.springframework.org/schema/task/spring-task.xsd"> <context:component-scan base-package="com.lyf"/> <import resource="dubbo-consumer.xml"/></beans>

5.3 启动consumer

package com.lyf;import com.lyf.dubbo.service.DemoService;
import org.springframework.context.support.ClassPathXmlApplicationContext;public class Consumer { public static void main(String[] args) throws Exception {
ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("spring.xml");
context.start();
DemoService demoService = (DemoService)context.getBean("demoService"); // 获取远程服务代理
String hello = demoService.sayHello("world"); // 执行远程方法
System.out.println(hello); // 显示调用结果
}}

 
 

参考资料

  • https://www.cnblogs.com/xmc0551/p/5825261.html
  • https://www.cnblogs.com/sxjun/p/6963844.html