springboot整合dubbo+zookeeper

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发布于 2022-11-01 11:31:17

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发布于 2022-11-01 11:31:17

文章被收录于专栏：全栈程序员必看

springboot整合dubbo+zookeeper

项目结构：

注意：在做此demo之前应该先自行搭建好zookeeper环境

也可以搭建dubbo监控环境

1.随便创建一个项目，之后添加一个maven项目用于存放接口

package com.wzb.service;

/** * @author Satsuki * @time 2019/8/27 17:51 * @description: * 一些模拟数据库事务的方法 */
public interface TestService { 
   
    public void ins();
    public void del();
    public void upd();
    public void sel();
}

2.创捷服务提供者（将服务注册到zookeeper）

pom文件：

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.7.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.wzb</groupId>
<artifactId>provider</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>provider</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>com.wzb</groupId>
<artifactId>service</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.dubbo</groupId>
<artifactId>dubbo-spring-boot-starter</artifactId>
<version>2.7.3</version>
<exclusions>
<exclusion>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.dubbo</groupId>
<artifactId>dubbo</artifactId>
<version>2.7.3</version>
</dependency>
<dependency>
<groupId>org.apache.curator</groupId>
<artifactId>curator-framework</artifactId>
<version>4.0.1</version>
</dependency>
<dependency>
<groupId>org.apache.curator</groupId>
<artifactId>curator-recipes</artifactId>
<version>2.8.0</version>
</dependency>
<dependency>
<groupId>org.apache.zookeeper</groupId>
<artifactId>zookeeper</artifactId>
<version>3.4.13</version>
<type>pom</type>
<exclusions>
<exclusion>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>com.101tec</groupId>
<artifactId>zkclient</artifactId>
<version>0.10</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>

application.properties:

#spring项目名
spring.application.name=dubbo_auto_configuration_provider_demo
#Dubbo provider configuration
dubbo.application.name=dubbo_provider
dubbo.registry.protocol=zookeeper
dubbo.registry.address=zookeeper://127.0.0.1:2181
dubbo.protocol.name=dubbo
dubbo.protocol.port=20880
#扫描注解包通过该设置将服务注册到zookeeper
dubbo.scan.base-packages=com.wzb.provider.service

具体服务实现：

package com.wzb.provider.service.impl;
import com.wzb.service.TestService;
import org.apache.dubbo.config.annotation.Service;
/** * @author Satsuki * @time 2019/8/27 15:35 * @description: * 模拟数据库事务实现 */
@Service(version = "1.0.0",interfaceClass = TestService.class)
//@Service(version = "1.0.0")
public class TestServiceImpl implements TestService { 

@Override
public void ins() { 

System.out.println("insert");
}
@Override
public void del() { 

System.out.println("delete");
}
@Override
public void upd() { 

System.out.println("update");
}
@Override
public void sel() { 

System.out.println("select");
}
}

启动类：

package com.wzb.provider;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class ProviderApplication { 

public static void main(String[] args) { 

SpringApplication.run(ProviderApplication.class, args);
}
}

步骤总结:

1.搭建pom环境

2.写好配置文件（一定要写上dubbo.scan.base-packages该配置会扫描你写的服务并注册到zookeeper）

3.具体服务实现

4.运行springboot启动类即可

3.创建服务消费者（服务使用者：通过远程调用服务使用）

pom文件与provider一致不再列出

application.properties:

#dubbo configuration
dubbo.application.name=dubbo_consumer
dubbo.registry.protocol=zookeeper
dubbo.registry.address=zookeeper://127.0.0.1:2181
#避免端口冲突
server.port=8085

服务调用：

package com.wzb.consumer.controller;
import com.wzb.service.TestService;
import org.apache.dubbo.config.annotation.Reference;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import javax.annotation.Resource;
/** * @author Satsuki * @time 2019/8/27 15:58 * @description: * 调用dubbo */
@RestController
public class TestController { 

// @Resource
// private TestService testServiceImpl;
@Reference(version = "1.0.0")
private TestService testServiceImpl;
@RequestMapping("/ins")
public String ins(){ 

testServiceImpl.ins();
return "ins";
}
@RequestMapping("/del")
public String del(){ 

testServiceImpl.del();
return "del";
}
@RequestMapping("/upd")
public String upd(){ 

testServiceImpl.upd();
return "upd";
}
@RequestMapping("/sel")
public String sel(){ 

testServiceImpl.sel();
return "sel";
}
}

之后只要写一个springboot启动类启动服务并且通过url访问即可测试调用服务

结果如下：

完成

demo地址： https://github.com/luoziling/dubbotest1

欢迎star fork

踩坑：

java.lang.NoClassDefFoundError: org/apache/curator/framework/recipes/cache/TreeCacheListener

在pom文件中加入这两个依赖即可

<dependency>
<groupId>org.apache.curator</groupId>
<artifactId>curator-framework</artifactId>
<version>4.0.1</version>
</dependency>
<dependency>
<groupId>org.apache.curator</groupId>
<artifactId>curator-recipes</artifactId>
<version>2.8.0</version>
</dependency>

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原始发表：2022年10月21日，如有侵权请联系 cloudcommunity@tencent.com 删除

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