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Zookeeper是Apacahe Hadoop的子项目#xff0c;可以为分布式应用程序协调服务#xff0c;适合作为Dubbo服务的注册中心#xff0c;负责服务地址的注册与查找#xff0c;相当于目录服务#xff0c;服务提供者和消费者只…入门案例之前我们先介绍一下zookeeper。
Zookeeper是Apacahe Hadoop的子项目可以为分布式应用程序协调服务适合作为Dubbo服务的注册中心负责服务地址的注册与查找相当于目录服务服务提供者和消费者只在启动时与注册中心交互。 就不用安装了我会上传一个安装包。
总结 1、什么是zookeeper zookeeper负责管理ip和port是服务提供者和服务消费者的注册中心 2、zookeeper的安装和启动 安装 解压即安装 启动 双击bin/zkServer.cmd
开始入门案例项目结构 父工程的pom.xml parentgroupIdorg.springframework.boot/groupIdartifactIdspring-boot-starter-parent/artifactIdversion2.3.2.RELEASE/version/parent
dependenciesdependencygroupIdorg.springframework.boot/groupIdartifactIdspring-boot-starter-web/artifactId/dependency!-- Dubbo Spring Boot Starter --dependencygroupIdcom.alibaba.boot/groupIdartifactIddubbo-spring-boot-starter/artifactIdversion0.1.0/version/dependency!-- 由于使⽤了zookeeper作为注册中⼼则需要加⼊zookeeper的客户端jar包 --dependencygroupIdcom.101tec/groupIdartifactIdzkclient/artifactIdversion0.10/version/dependency/dependencies
1、dobbo_interface模块 这个模块中我们就只写一个接口模拟一下就可以. 在com.by.service中写一个HelloService接口
/** Copyright (c) 2020, 2024, All rights reserved.**/
package com.by.service;/*** pProject: dubbo_parent - HelloService/p* pPowered by scl On 2024-01-17 13:56:01/p* p描述p** author 孙臣龙 [1846080280qq.com]* version 1.0* since 17*/
public interface HelloService {String hello();
}
2、dobbo_provider模块
在这个模块中我们需要做实现上个模块的接口创建spring boot的启动类创建配置类 pom.xml: dependenciesdependencygroupIdcom.by/groupIdartifactIddubbo_interface/artifactIdversion1.0-SNAPSHOT/version/dependency/dependencies HelloServiceImpl注意这个Service注解是dubbo下的 /** Copyright (c) 2020, 2024, All rights reserved.**/
package com.by.service;import com.alibaba.dubbo.config.annotation.Service;/*** pProject: dubbo_parent - HelloServiceImpl/p* pPowered by scl On 2024-01-17 13:57:42/p* p描述p** author 孙臣龙 [1846080280qq.com]* version 1.0* since 17*/
Service
public class HelloServiceImpl implements HelloService{Overridepublic String hello() {return 你好啊;}
} 启动类DubboProviderApp /** Copyright (c) 2020, 2024, All rights reserved.**/
package com.by;import com.alibaba.dubbo.config.spring.context.annotation.EnableDubbo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;/*** pProject: dubbo_parent - DubboProviderApp/p* pPowered by scl On 2024-01-17 13:59:35/p* p描述p** author 孙臣龙 [1846080280qq.com]* version 1.0* since 17*/
SpringBootApplication
EnableDubbo //让dubbo去扫描dubbo的注解
public class DubboProviderApp {public static void main(String[] args) {SpringApplication.run(DubboProviderApp.class,args);}
} application.properties: #zookeeper\u7684\u5730\u5740
dubbo.registry.addresszookeeper://127.0.0.1:2181
#\u901A\u8BAF\u534F\u8BAE\uFF1Armi\u3001http\u3001dubbo
dubbo.protocol.namedubbo
#\u5F53\u524D\u670D\u52A1\u7684\u540D\u79F0
dubbo.application.namedubbo-provider3、dobbo_consumer模块
在这个模块中我们需要测试一下我们的功能。实现上个模块的接口创建spring boot的启动类创建配置类。
pom.xml:
dependenciesdependencygroupIdcom.by/groupIdartifactIddubbo_interface/artifactIdversion1.0-SNAPSHOT/version/dependency/dependencies
HelloController:(注意Reference也是dubbo下的)
/** Copyright (c) 2020, 2024, All rights reserved.**/
package com.by.controller;import com.alibaba.dubbo.config.annotation.Reference;
import com.by.service.HelloService;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
/*** pProject: dubbo_parent - HelloController/p* pPowered by scl On 2024-01-17 15:02:44/p* p描述p** author 孙臣龙 [1846080280qq.com]* version 1.0* since 17*/
Controller
public class HelloController {Referenceprivate HelloService helloService;RequestMapping(/hello)ResponseBodypublic String hello(){return helloService.hello();}
}
启动类DubboConsumerApplication
/** Copyright (c) 2020, 2024, All rights reserved.**/
package com.by;import com.alibaba.dubbo.config.spring.context.annotation.EnableDubbo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;/*** pProject: dubbo_parent - DubboConsumerApplication/p* pPowered by scl On 2024-01-17 15:00:04/p* p描述p** author 孙臣龙 [1846080280qq.com]* version 1.0* since 17*/
SpringBootApplication
EnableDubbo
public class DubboConsumerApplication {public static void main(String[] args) {SpringApplication.run(DubboConsumerApplication.class,args);}
}
配置文件application.porperties
#zookeeper\u7684\u5730\u5740
dubbo.registry.addresszookeeper://127.0.0.1:2181
#\u901A\u8BAF\u534F\u8BAE\uFF1Armi\u3001http\u3001dubbo
dubbo.protocol.namedubbo
#\u5F53\u524D\u670D\u52A1\u7684\u540D\u79F0
dubbo.application.namedubbo-consumer
server.port80
注意 1、zookeeper必须启动 2、 Reference 和 Service必须到dubbo的包 3、必须先启动provider再起consumer 4、模块provider和consumer的端口号要区分开
结果展示
