springboot 集成dubbo的步骤详解
目录
- 第一步 搭建zookeeper环境
- 第二步 springboot集成dubbo
- 1.项目目录机构
- 2.代码编写
- 2.1 api目录
- 2.2 consumer目录 web访问、接口调用以及dubbo配置编写
- 2.3 provider目录 api接口实现以及dubbo配置
- 第三步 测试dubbo远程服务调用
- 附录:
写在前面:在阅读本文前,请前拥有dubbo基础知识,springboot知识
dubbo官网: http://dubbo.apache.org
dubbo github 源码地址:https://github.com/apache/incubator-dubbo
dubbo 运维项目源码地址:https://github.com/apache/incubator-dubbo-ops
本文项目GitHub: https://github.com/Blankwhiter/dubbo-spring-boot-starter-test
源码对应版本1.0.1: https://github.com/Blankwhiter/dubbo-spring-boot-starter-test/archive/1.0.1.zip
第一步 搭建zookeeper环境
在centos窗口中,执行如下命令,拉取镜像,并启动zookeeper容器
docker pull zookeeper docker run -d -v /home/docker/zookeeperhost/zookeeperDataDir:/data -v /home/docker/zookeeperhost/zookeeperDataLogDir:/datalog -e ZOO_MY_ID=1 -e ZOO_SERVERS='server.1=125.77.116.145:2888:3888' -p 2182:2181 -p 2888:2888 -p 3888:3888 --name zookeeper --privileged zookeeper
注:
1.zookeeper默认连接端口是2181 但本文测试用例时由于被其他程序占走,故使用2182。
2.读者请自行创建映射目录zookeeperDataDir | zookeeperDataLogDir
第二步 springboot集成dubbo
1.项目目录机构
说明:
- 1.api目录:存放消费者与提供者调用的service接口
- 2.consumer目录:消费者目录 调用提供者远程提供的接口实现
- 3.provider目录:提供者目录 提供给消费者接口实现
读者请自行创建项目目录(创建空项目,然后在空项目中新建三个module)
项目案例说明:业务假设场景=》 产品购买消费金额(consumer)同时并返回所有消费的总金额(需要调用到provider项目中服务实现)。
2.代码编写
2.1 api目录
接口编写
2.1.1.在com.dubbo.api.service(读者请自行创建,下同,package创建将不一一赘述)包下创建CostService.java
package com.dubbo.api.service; public interface CostService { /** * 成本增加接口 * @param cost * @return */ Integer add(int cost); }
2.1.2.pom.xml
<?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"> <modelVersion>4.0.0</modelVersion> <groupId>com.dubbo</groupId> <artifactId>api</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>jar</packaging> <name>api</name> <description>Demo project for Spring Boot</description> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.1.0.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <java.version>1.8</java.version> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter</artifactId> </dependency> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> </project>
2.2 consumer目录 web访问、接口调用以及dubbo配置编写
2.2.1.引入 dubbo-spring-boot-starter 以及 上述的api模块
<?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"> <modelVersion>4.0.0</modelVersion> <groupId>com.dubbo</groupId> <artifactId>api</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>jar</packaging> <name>api</name> <description>Demo project for Spring Boot</description> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.1.0.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <java.version>1.8</java.version> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter</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>
2.2.2.在resources目录下 创建application.yml,并编写dubbo配置
<?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"> <modelVersion>4.0.0</modelVersion> <groupId>com.dubbo</groupId> <artifactId>consumer</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>jar</packaging> <name>consumer</name> <description>Demo project for Spring Boot</description> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.1.0.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <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> <!--引入api模块--> <dependency> <groupId>com.dubbo</groupId> <artifactId>api</artifactId> <version>0.0.1-SNAPSHOT</version> <scope>compile</scope> </dependency> <!--引入dubbo环境--> <dependency> <groupId>com.alibaba.boot</groupId> <artifactId>dubbo-spring-boot-starter</artifactId> <version>0.2.0</version> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> </project>
2.2.3.使用 @EnableDubbo 注解开启dubbo
ConsumerApplication.java 启动类
package com.dubbo.consumer; import com.alibaba.dubbo.config.spring.context.annotation.EnableDubbo; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; @SpringBootApplication @EnableDubbo public class ConsumerApplication { public static void main(String[] args) { SpringApplication.run(ConsumerApplication.class, args); } }
2.2.4.编写产品service接口 ProductService.java
package com.dubbo.consumer.service; public interface ProductService { /** * 获得总消费 * @param a * @return */ Integer getCost(int a); }
2.2.5.编写产品接口的实现,并调用远程服务CostService 。 ProductServiceImpl.java
package com.dubbo.consumer.service.impl; import com.alibaba.dubbo.config.annotation.Reference; import com.dubbo.api.service.CostService; import com.dubbo.consumer.service.ProductService; import org.springframework.stereotype.Service; /** * 产品service */ @Service public class ProductServiceImpl implements ProductService { /** * 使用dubbo的注解 com.alibaba.dubbo.config.annotation.Reference。进行远程调用service */ @Reference private CostService costService; @Override public Integer getCost(int a) { return costService.add(a); } }
2.2.6.编写访问类,ProductController.java
package com.dubbo.consumer.controller; import com.dubbo.consumer.service.ProductService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; /** * 产品controller */ @RestController public class ProductController { @Autowired private ProductService productService; /** * 添加完 返回总共消费 * @param a * @return */ @RequestMapping("/add") public String getCost(int a){ return "该产品总共消费 :"+productService.getCost(a); } }
2.3 provider目录 api接口实现以及dubbo配置
2.3.1.引入 dubbo-spring-boot-starter 以及 上述的api模块
<?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"> <modelVersion>4.0.0</modelVersion> <groupId>com.dubbo</groupId> <artifactId>provider</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>jar</packaging> <name>provider</name> <description>Demo project for Spring Boot</description> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.1.0.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <java.version>1.8</java.version> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> <!--引入api--> <groupId>com.dubbo</groupId> <artifactId>api</artifactId> <version>0.0.1-SNAPSHOT</version> <scope>compile</scope> <!--引入dubbo环境--> <groupId>com.alibaba.boot</groupId> <artifactId>dubbo-spring-boot-starter</artifactId> <version>0.2.0</version> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> </project>
2.3.2.在resources目录下 创建application.yml,并编写dubbo配置
dubbo: application: name: dubbo-provider registry: address: 125.77.116.145:2182 # 读者请自行更改zookeeper地址 protocol: zookeeper check: false protocol: name: dubbo port: 30003 monitor: protocol: register consumer: check: false timeout: 3000 server: port: 8061
2.3.3.使用 @EnableDubbo 注解开启dubbo
ConsumerApplication.java 启动类
package com.dubbo.provider; import com.alibaba.dubbo.config.spring.context.annotation.EnableDubbo; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; @SpringBootApplication @EnableDubbo public class ProviderApplication { public static void main(String[] args) { SpringApplication.run(ProviderApplication.class, args); } }
2.3.3.编写CostService服务实现 CostServiceImpl.java
package com.dubbo.provider.service.impl; import com.alibaba.dubbo.config.annotation.Service; import com.dubbo.api.service.CostService; /** * 花费服务 */ @Service public class CostServiceImpl implements CostService { /** * 假设之前总花费了100 */ private final Integer totalCost = 1000; /** * 之前总和 加上 最近一笔 * @param cost * @return */ @Override public Integer add(int cost) { return totalCost + cost; } }
第三步 测试dubbo远程服务调用
编写第二步代码完成后 ,启动consumer项目,以及provider项目
在浏览器中访问 http://localhost:8062/add?a=100
出现如上结果即为调用成功
第四步 dubbo管理平台
dubbo运维旧版地址: https://github.com/apache/incubator-dubbo-ops/tree/master
1.本文将运维项目代码下载放于 D:learnplaceincubator-dubbo-ops
2.这里需要修改一个配置D:learnplaceincubator-dubbo-opsdubbo-adminsrcmain esourcesapplication.properties
# # Licensed to the Apache Software Foundation (ASF) under one or more # contributor license agreements. See the NOTICE file distributed with # this work for additional information regarding copyright ownership. # The ASF licenses this file to You under the Apache License, Version 2.0 # (the "License"); you may not use this file except in compliance with # the License. You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. # server.port=8001 #服务器端口 server.port spring.velocity.cache=false spring.velocity.charset=UTF-8 spring.velocity.layout-url=/templates/default.vm spring.messages.fallback-to-system-locale=false spring.messages.basename=i18n/message spring.root.password=root spring.guest.password=guest #访问的密码配置 spring.root.password spring.guest.password #dubbo.registry.address=zookeeper://127.0.0.1:2181 dubbo.registry.address=zookeeper://125.77.116.145:2182 #zookeeper地址
3.在D:learnplaceincubator-dubbo-opsdubbo-admin目录下 ,进入cmd窗口执行
mvn claen package 打包项目,
4.然后进入D:learnplaceincubator-dubbo-opsdubbo-admin arget ,进入cmd窗口执行
java -jar dubbo-admin-0.0.1-SNAPSHOT.jar 运行项目
5.启动成功后 浏览器访问http://localhost:8001 输入账号:root / 密码:root 即可。
附录:
1.各个软件版本对应
versions
Java
Spring Boot
Dubbo
0.2.0
1.8+
2.0.x
2.6.2
+
0.1.1
1.7+
1.5.x
2.6.2
+
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