Spring boot + Dubbo 的搭建

1、Dubbo的使用demo

1.服務構架

服務架構：一個api，一個服務提供者，一個服務消費者

dubbo-api：聲明生產者服務接口。

dubbo-provider：提供服務，做爲服務的生產者，註冊到zookeeper上

dubbo-consumer：做爲服務的消費者，註冊到zookeeper上

2.項目Maven依賴圖

dubbo-provider 依賴 dubbo-api 聲明service 接口

dubbo-consumer 依賴 dubbo-api 聲明service 接口經過dubbo調用provider服務

3.框架結構 Spring boot + dubbo +zookeeper

4.搭建demo

1.父級結構：

POM文件以下：

<?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.zx.dubbo</groupId>   <artifactId>dubbo-root</artifactId>   <packaging>pom</packaging>   <version>1.0-SNAPSHOT</version>     <modules>     <module>dubbo-consumer</module>     <module>dubbo-api</module>     <module>dubbo-zx-provider</module>   </modules>     <properties>     <dubbo-spring-boot>1.0.0</dubbo-spring-boot>       <java.version>1.8</java.version>   </properties>       <!-- Spring Boot 啓動父依賴 -->     <parent>         <groupId>org.springframework.boot</groupId>         <artifactId>spring-boot-starter-parent</artifactId>         <version>2.0.5.RELEASE</version>     </parent>     <dependencies>         <!-- 引入spring-boot-starter以及dubbo和curator的依賴 -->       <dependency>           <groupId>com.alibaba.boot</groupId>           <artifactId>dubbo-spring-boot-starter</artifactId>           <version>0.2.0</version>       </dependency>           <!-- Spring Boot Web 依賴 -->         <dependency>           <groupId>org.springframework.boot</groupId>           <artifactId>spring-boot-starter-web</artifactId>         </dependency>           <!-- Spring Boot Test 依賴 -->         <dependency>           <groupId>org.springframework.boot</groupId>           <artifactId>spring-boot-starter-test</artifactId>           <scope>test</scope>         </dependency>           <!-- Junit -->         <dependency>           <groupId>junit</groupId>           <artifactId>junit</artifactId>           <version>4.12</version>         </dependency>   </dependencies>     <build>     <plugins>       <plugin>         <groupId>org.springframework.boot</groupId>         <artifactId>spring-boot-maven-plugin</artifactId>       </plugin>     </plugins>   </build>   </project>

 

2.dubbo-api:

項目結構：

service包：接口provider接口聲明

pojo包：數據庫實體對象

POM不作任何依賴

3.dubbo-provider（服務端口8080）:

項目結構：

Controller包：項目啓動文件ProviderApplication和mybatis配置類

Mapper包：mybatis生成Dao文件

Service包：api接口實現層

resources: 配置文件所在目錄

POM文件以下：

<?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">     <parent>         <artifactId>dubbo-root</artifactId>         <groupId>com.zx.dubbo</groupId>         <version>1.0-SNAPSHOT</version>     </parent>     <modelVersion>4.0.0</modelVersion>       <artifactId>dubbo-zx-provider</artifactId>       <dependencies>         <!-- 添加spring boot 和mybatis依賴 -->         <dependency>             <groupId>org.mybatis.spring.boot</groupId>             <artifactId>mybatis-spring-boot-starter</artifactId>             <version>1.3.1</version>         </dependency>           <!-- 添加MySQL依賴 -->         <dependency>             <groupId>mysql</groupId>             <artifactId>mysql-connector-java</artifactId>         </dependency>         <!-- 添加mysql-generator -->         <dependency>             <groupId>org.mybatis.generator</groupId>             <artifactId>mybatis-generator-core</artifactId>             <version>1.3.5</version>         </dependency>           <dependency>             <groupId>com.zx.dubbo</groupId>             <artifactId>dubbo-api</artifactId>             <version>1.0-SNAPSHOT</version>         </dependency>     </dependencies>       <build>         <plugins>             <!-- mybatis generator 自動生成代碼插件 -->             <plugin>                 <groupId>org.mybatis.generator</groupId>                 <artifactId>mybatis-generator-maven-plugin</artifactId>                 <version>1.3.5</version>                 <configuration>                     <configurationFile>${basedir}/src/main/resources/mybatis-generator.xml</configurationFile>                     <overwrite>true</overwrite>                     <verbose>true</verbose>                 </configuration>             </plugin>         </plugins>           <resources>             <resource>                 <directory>${basedir}/src/main/resources</directory>                 <includes>                     <include>**/*.*</include>                 </includes>             </resource>         </resources>     </build> </project>

4.dubbo-consumer（端口8081）:

項目結構：

Controller包：項目啓動文件ConsumerApplication和測試Controller層 以及swagger2的配置類

demo包：向上給Controller提供服務service類所在包

resources: 配置文件所在目錄

POM文件以下：

<?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">     <parent>         <artifactId>dubbo-root</artifactId>         <groupId>com.zx.dubbo</groupId>         <version>1.0-SNAPSHOT</version>     </parent>     <modelVersion>4.0.0</modelVersion>       <artifactId>dubbo-consumer</artifactId>       <dependencies>         <dependency>             <groupId>io.springfox</groupId>             <artifactId>springfox-swagger2</artifactId>             <version>2.8.0</version>         </dependency>         <dependency>             <groupId>io.springfox</groupId>             <artifactId>springfox-swagger-ui</artifactId>             <version>2.8.0</version>         </dependency>           <dependency>             <groupId>com.zx.dubbo</groupId>             <artifactId>dubbo-api</artifactId>             <version>1.0-SNAPSHOT</version>         </dependency>     </dependencies> </project>

5.運行及結果

一、啓動zookeeper

二、啓動服務生產者 ProviderApplication

三、啓動服務消費者 ConsumerApplication

四、訪問消費者Swagger地址

並能查詢到數據結果

2、Spring Clouds 和 Dubbo 項目的區別

1. Spring Clouds 註冊中心是 Spring Eureka做爲註冊中心，dubbo使用Zookeeper做爲集羣管理
2. 協議區別，Dubbo採用的是基於TCP協議的RPC通信，Spring Clouds 之間採用的是http協議進行通信，RPC通信協議要比http小，解析更快
3. 協議區別 RPC協議採用單一的長連接， HTTP協議採用多鏈接的短鏈接