springboot 简易集成dubbo

柔情只为你懂 2022-04-16 00:12 334阅读 0赞

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][http_dubbo.apache.org]  
dubbo github 源码地址：[https://github.com/apache/incubator-dubbo][https_github.com_apache_incubator-dubbo]  
dubbo 运维项目源码地址：[https://github.com/apache/incubator-dubbo-ops][https_github.com_apache_incubator-dubbo-ops]

本文项目GitHub： [https://github.com/Blankwhiter/dubbo-spring-boot-starter-test][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][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 ####

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2JlbG9uZ2h1YW5nMTU3NDA1_size_16_color_FFFFFF_t_70]

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/> 
        </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 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>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/> 
        </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>
    
            
            <dependency>
                <groupId>com.dubbo</groupId>
                <artifactId>api</artifactId>
                <version>0.0.1-SNAPSHOT</version>
                <scope>compile</scope>
            </dependency>
    
            
            <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>

2.2.2.在resources目录下 创建**application.yml**,并编写dubbo配置

dubbo:
      application:
        name:  dubbo-consumer
      registry:
        address: 125.77.116.145:2182
        # 读者请换成自己的zookeeperip
        protocol: zookeeper
        check: false
      monitor:
        protocol: register
      consumer:
        check:  false
        timeout: 3000
    
    server:
      port: 8062

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/> 
        </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>
            
            <dependency>
                <groupId>com.dubbo</groupId>
                <artifactId>api</artifactId>
                <version>0.0.1-SNAPSHOT</version>
                <scope>compile</scope>
            </dependency>
            
            <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>

2.3.2.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][http_localhost_8062_add_a_100]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2JlbG9uZ2h1YW5nMTU3NDA1_size_16_color_FFFFFF_t_70 1]

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][https_github.com_apache_incubator-dubbo-ops_tree_master]

1.本文将运维项目代码下载放于 D:\\learnplace\\incubator-dubbo-ops

2.**这里需要修改一个配置D:\\learnplace\\incubator-dubbo-ops\\dubbo-admin\\src\\main\\resources\\application.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:\\learnplace\\incubator-dubbo-ops\\dubbo-admin目录下 ，进入cmd窗口执行  
**mvn claen package** 打包项目，  
4.然后进入D:\\learnplace\\incubator-dubbo-ops\\dubbo-admin\\target ，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。

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2JlbG9uZ2h1YW5nMTU3NDA1_size_16_color_FFFFFF_t_70 2]

### 附录： ###

1.各个软件版本对应

<table> 
 <thead> 
  <tr> 
   <th>versions</th> 
   <th>Java</th> 
   <th>Spring Boot</th> 
   <th>Dubbo</th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr> 
   <td><code>0.2.0</code></td> 
   <td>1.8+</td> 
   <td><code>2.0.x</code></td> 
   <td><code>2.6.2</code> +</td> 
  </tr> 
  <tr> 
   <td><code>0.1.1</code></td> 
   <td>1.7+</td> 
   <td><code>1.5.x</code></td> 
   <td><code>2.6.2</code> +</td> 
  </tr> 
 </tbody> 
</table>

[http_dubbo.apache.org]: http://dubbo.apache.org
[https_github.com_apache_incubator-dubbo]: https://github.com/apache/incubator-dubbo
[https_github.com_apache_incubator-dubbo-ops]: https://github.com/apache/incubator-dubbo-ops
[https_github.com_Blankwhiter_dubbo-spring-boot-starter-test]: https://github.com/Blankwhiter/dubbo-spring-boot-starter-test
[https_github.com_Blankwhiter_dubbo-spring-boot-starter-test_archive_1.0.1.zip]: https://github.com/Blankwhiter/dubbo-spring-boot-starter-test/archive/1.0.1.zip
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2JlbG9uZ2h1YW5nMTU3NDA1_size_16_color_FFFFFF_t_70]: /images/20220416/682322b3d9a449e380cef8af742fe059.png
[http_localhost_8062_add_a_100]: http://localhost:8062/add?a=100
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2JlbG9uZ2h1YW5nMTU3NDA1_size_16_color_FFFFFF_t_70 1]: /images/20220416/7e1238a2f3cd45219a161e82ad183c6b.png
[https_github.com_apache_incubator-dubbo-ops_tree_master]: https://github.com/apache/incubator-dubbo-ops/tree/master
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2JlbG9uZ2h1YW5nMTU3NDA1_size_16_color_FFFFFF_t_70 2]: /images/20220416/926a83e5ae554595b4f5cbfc83053552.png