Dubbo学习记录1

编程入门行业动态更新时间:2024-10-27 22:21:13

写在前面

这里记录下springboot-Dubbo的学习记录

准备
找到官方提供的示例项目，clone到本地开发工具，项目地址

zookeeper 我这里用的 3.4.10 版本

还有zookeeper可视化工具下载地址，
其实还有个 Dubbo-server-admin，也可以监控Dubbo服务，路由监控和发起RPC调用等.

一、启动 Zookeeper和可视化工具

windows窗口，双击zkServer.cmd或者命令行启动zk 可视化，解压后进入build目录执行命令
java -jar zookeeper-dev-ZooInspector.jar

二、测试registry-samples --> zookeeper

先启动provider，再启动sumer

2.1 Provider配置、使用

application.properties

# Spring boot application
spring.application.name=dubbo-registry-zookeeper-provider-sampleLS
# Base packages to scan Dubbo Component: @.apache.dubbo.config.annotation.Service
dubbo.scan.base-packages=.apache.dubbo.spring.boot.sample.provider.service# Dubbo Application
## The default value of dubbo.application.name is ${spring.application.name}
## dubbo.application.name=${spring.application.name}# Dubbo Protocol
dubbo.protocol.name=dubbo
## Random port
dubbo.protocol.port=-1## Dubbo Registry
dubbo.registry.address=zookeeper://127.0.0.1:2181
dubbo.registry.file = ${user.home}/dubbo-cache/${spring.application.name}/dubbo.cache## DemoService version
demo.service.version=1.0.0

使用时用 DubboService，这里只是简单使用，还可以配置并发数，token等等

@DubboService(version = "${demo.service.version}")
public class DefaultDemoService implements DemoService {/*** The default value of ${dubbo.application.name} is ${spring.application.name}*/@Value("${dubbo.application.name}")private String serviceName;@Overridepublic String sayHello(String name) {return String.format("[%s] : Hello, %s", serviceName, name);}
}

2.2 Consumer

application.properties

spring:application:name: dubbo-registry-zookeeper-consumer-sampleLSdemo:service:version: 1.0.0embedded:zookeeper:port: 2181dubbo:registry:address: zookeeper://127.0.0.1:${embedded.zookeeper.port}file: ${user.home}/dubbo-cache/${spring.application.name}/dubbo.cache

使用，这种注入@DubboReference(version = “${demo.service.version}”),还可以配置缓存，存根，负载均衡，参数等等

    @DubboReference(version = "${demo.service.version}")private DemoService demoService;public ApplicationRunner runner() {return args -> logger.info(demoService.sayHello("mercyblitz"));}