springboot整合dubbo\zookeeper做注册中心

项目搭建步骤：

安装本地Zookeeper注册中心，下载地址:https://www.apache.org/dyn/closer.cgi/zookeeper/
下载完成后解压，然后打开配置拷贝一份zoo_sample.cfg，修改名称为zoo.cfg
打开zoo_.cfg，修改数据保存路径（datadir），修改为本地可用路径，没有就创建对应的文件夹目录
进入bin目录，然后双击执行zkServer.cmd，执行成功如下图，
也可以使用zkCli.cmd测试连接

使用idea创建一个springboot项目

打开父项目pom.xml文件，添加刚才创建的三个子模块，完整代码：

点击查看代码

<?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>2.6.4</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.jinfl</groupId>
    <artifactId>dubbotest</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>dubbotest</name>
    <description>Demo project for Spring Boot</description>
    <properties>
        <java.version>1.8</java.version>
    </properties>
    <modules>
        <module>dubbo-api</module>
        <module>dubbo-customer</module>
        <module>dubbo-provider</module>
    </modules>
    <dependencies>
        <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>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

- dubbo-api模块中新增服务接口类HelloService，代码如下：

点击查看代码

package com.jinfl.service;

/**
 * @title: HelloService
 * @projectName dubbotest
 * @description: TODO
 */
public interface HelloService {
    String sayHello(String name);
}

- dubbo-api的pom文件如下

点击查看代码

<?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>2.6.4</version>
		<relativePath/> <!-- lookup parent from repository -->
	</parent>
	<groupId>com.jinfl</groupId>
	<artifactId>dubbo-api</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<name>dubboapi</name>
	<description>Demo project for Spring Boot</description>
	<properties>
		<java.version>1.8</java.version>
	</properties>
	<dependencies>
		<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>
	</dependencies>

	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
		</plugins>
	</build>

</project>

- dubbo-provider模块中新增实现接口类HelloServiceImpl，代码如下：

点击查看代码

package com.jinfl.serviceimpl;
 
import com.alibaba.dubbo.config.annotation.Service;
import com.jinfl.service.HelloService;

@Service
public class HelloServiceImpl implements HelloService {
 
    @Override
    public String sayHello(String name) {
        return "Hello, " + name;
    }
}

- dubbo-provider中DubboProviderApplication启动类添加dubbo注解 - dubbo-provider中pom.xml代码如下：

点击查看代码

<?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>2.6.4</version>
		<relativePath/> <!-- lookup parent from repository -->
	</parent>
	<groupId>com.jinfl</groupId>
	<artifactId>dubbo-provider</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<name>dubboprovider</name>
	<description>Demo project for Spring Boot</description>
	<properties>
		<java.version>1.8</java.version>
		<zookeeper.version>3.4.13</zookeeper.version>
	</properties>
	<dependencies>
		<dependency>
			<groupId>com.jinfl</groupId>
			<artifactId>dubbo-api</artifactId>
			<version>0.0.1-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>com.alibaba.boot</groupId>
			<artifactId>dubbo-spring-boot-starter</artifactId>
			<version>0.2.0</version>
		</dependency>
                <!--不加这个会报错-->
		<dependency>
			<groupId>com.101tec</groupId>
			<artifactId>zkclient</artifactId>
			<version>0.10</version>
		</dependency>

		<dependency>
			<groupId>org.apache.zookeeper</groupId>
			<artifactId>zookeeper</artifactId>
			<version>${zookeeper.version}</version>
			<exclusions>
				<exclusion>
					<groupId>org.slf4j</groupId>
					<artifactId>slf4j-log4j12</artifactId>
				</exclusion>
				<exclusion>
					<groupId>log4j</groupId>
					<artifactId>log4j</artifactId>
				</exclusion>
			</exclusions>
		</dependency>
	</dependencies>

	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
		</plugins>
	</build>

</project>

- dubbo-provider中application.yml配置内容如下：

点击查看代码

server:
  port: 8091
 
dubbo:
  application:
    name: dubbo-provider
  protocol:
    name: dubbo
    port: 20880
  registry:
    address: zookeeper://127.0.0.1:2181

注意：

@Service 是dubbo发布服务的注解；

@EnableDubbo 是启动dubbo服务注解；

log4j 和 slf4j-log4j12 需要排除，否则会与zookeeper冲突；

dubbo-customer模块中新增控制类HelloController，便于测试，代码如下：

点击查看代码

package com.jinfl.controller;
 
 
import com.alibaba.dubbo.config.annotation.Reference;
import com.jinfl.service.HelloService;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
 
@RestController
public class HelloController {
    @Reference
    private HelloService helloService;
 
    @GetMapping("/sayHello")
    private String sayHello(@RequestParam String name){
 
        System.out.println("调用sayHello成功了..." + " name:" + name);

        return helloService.sayHello(name);
    }
 
}

- dubbo-customer中pom.xml代码如下：

点击查看代码

<?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>2.6.4</version>
		<relativePath/> <!-- lookup parent from repository -->
	</parent>
	<groupId>com.jinfl</groupId>
	<artifactId>dubbo-customer</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<name>dubbocustomer</name>
	<description>Demo project for Spring Boot</description>
	<properties>
		<java.version>1.8</java.version>
		<zookeeper.version>3.4.13</zookeeper.version>
	</properties>
	<dependencies>
		<dependency>
			<groupId>com.jinfl</groupId>
			<artifactId>dubbo-api</artifactId>
			<version>0.0.1-SNAPSHOT</version>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>

		<dependency>
			<groupId>com.alibaba.boot</groupId>
			<artifactId>dubbo-spring-boot-starter</artifactId>
			<version>0.2.0</version>
		</dependency>

		<dependency>
			<groupId>org.apache.zookeeper</groupId>
			<artifactId>zookeeper</artifactId>
			<version>${zookeeper.version}</version>
			<exclusions>
				<exclusion>
					<groupId>org.slf4j</groupId>
					<artifactId>slf4j-log4j12</artifactId>
				</exclusion>
				<exclusion>
					<groupId>log4j</groupId>
					<artifactId>log4j</artifactId>
				</exclusion>
			</exclusions>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
		</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>

- dubbo-customer中application.yml配置内容如下：

点击查看代码

server:
  port: 8090
 
dubbo:
  application:
    name: dubbo-customer
  registry:
    address: zookeeper://127.0.0.1:2181

####注意： @Reference 是dubbo引用服务的注解；至此，基于dubbo的分布式项目框架就搭建完成了。

运行测试

首先运行启动服务提供者dubbo-provider子模块
然后启动服务消费者dubbo-customer子模块
测试路径：http://localhost:8090/sayHello?name=jinfl
测试成功

posted @ 2021-06-09 16:26 LilLazy 阅读(165) 评论(0) 收藏举报

刷新页面返回顶部

springboot整合dubbo\zookeeper做注册中心

项目搭建步骤：

使用idea创建一个springboot项目

注意：

运行测试

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