springboot-dubbo-mybatis项目搭建

一、下载官方demo帮助搭建

在网站http://start.dubbo.io/，勾选自己需要的组件，下载demo，基于demo构建自己的项目。

二、配置与解释

1、provider端：

1）、依赖添加

在pom.xml中添加依赖：

<!--设置父依赖--> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version> 1.5 . 16 .RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <!--添加所需的依赖--> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-jdbc</artifactId> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version> 1.2 . 47 </version> </dependency> <dependency> <groupId>com.alibaba.boot</groupId> <artifactId>dubbo-spring-boot-starter</artifactId> <version> 0.1 . </version> </dependency> <dependency> <groupId>io.netty</groupId> <artifactId>netty-all</artifactId> <version> 4.1 . 24 .Final</version> </dependency> <dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-lang3</artifactId> <version> 3.7 </version> </dependency> <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version> 1.3 . 2 </version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <scope>runtime</scope> </dependency> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <optional> true </optional> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> </dependencies>

2）、application.properties配置

#数据库连接信息配置 spring.datasource.url=jdbc:mysql: //localhost:3306/tyrant?useUnicode=true&characterEncoding=utf8?useSSL=true spring.datasource.username=root spring.datasource.password= 358140678 spring.datasource.driver- class -name=com.mysql.jdbc.Driver #mybatis配置 mybatis.config-location=classpath:mybatis-config.xml mybatis.mapper-locations=classpath:mapper/*.xml mybatis.type-aliases- package =com.tyrant.article.dao #dubbo配置 dubbo.application.name = dubbo-article-server # Base packages to scan Dubbo Component:  @com .alibaba.dubbo.config.annotation.Service dubbo.scan.basePackages  = com.tyrant.article.service #设置dubbo扫描服务的包 ## RegistryConfig Bean dubbo.registry.id = my-registry dubbo.registry.address = zookeeper: //localhost:2181?client=curator #设置注册地址 dubbo.application.qosEnable= false #设置返回前端的date格式 spring.jackson.date-format=yyyy-MM-dd HH:mm:ss spring.jackson.time-zone=GMT+ 8

3）、编写mybatis-conf类

<?xml version= "1.0" encoding= "UTF-8" ?> <!DOCTYPE configuration PUBLIC  "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd" > <configuration> <settings> <!-- Globally enables or disables any caches configured in any mapper under  this configuration --> <setting name= "cacheEnabled" value= "true" /> <!-- Sets the number of seconds the driver will wait  for a response from the database --> <setting name= "defaultStatementTimeout" value= "3000" /> <!-- Enables automatic mapping from classic database column names A_COLUMN to camel  case classic Java property names aColumn --> <setting name= "mapUnderscoreToCamelCase" value= "true" /> <!-- Allows JDBC support  for generated keys. A compatible driver is required. This setting     forces generated keys to be used  if set to  true , as some drivers deny compatibility but still work --> <setting name= "useGeneratedKeys" value= "true" /> </settings> <!-- Continue going here --> </configuration>

4）、编写zk的类

参照官网demo，写zk的注册类。在启动类中调用new EmbeddedZooKeeper(2181, false).start();启动zk服务，注意此处的变量是dubbo服务在zk注册的端口，须与application.properties配置相同。

5）、编写服务类

import com.alibaba.dubbo.config.annotation.Service; import com.tyrant.article.service.TestService; @Service (version =  "1.0.0" ) public class TestServiceImpl  implements TestService { @Override public String test() { return "test from provider" ; } }

TestService需要暴露给消费者consumer。

6）、启动类编写

import org.mybatis.spring.annotation.MapperScan; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; @SpringBootApplication @MapperScan ( "com.tyrant.article.dao" ) public class ArticleApplication { public static void main(String[] args) { // start embedded zookeeper server new EmbeddedZooKeeper( 2181 ,  false ).start(); SpringApplication.run(ArticleApplication. class , args); } }

2、consumer端：

1）、依赖添加

添加所需的依赖包。

2）、编写application.properties配置

#避免接口占用冲突

server.port=8081

# Dubbo Config properties

## ApplicationConfig Bean

dubbo.application.name= dubbo-demo-client

## RegistryConfig Bean

dubbo.registry.id = my-registry

dubbo.registry.address = zookeeper://localhost:2181?client=curator

dubbo.application.qosEnable=false

3）、引入provider的接口

注意，此处的包，名称和完整包路径，必须和provider中的一致。

4）、测试类编写

import com.alibaba.dubbo.config.annotation.Reference; import com.tyrant.article.service.ArticleService; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; @RestController @RequestMapping ( "/test" ) public class ArticleController { @Reference (version =  "1.0.0" ) private TestService testService; @RequestMapping ( "/" ) public String test(){ return testService.getRandomArticle(); } }

以上步骤完成后，先启动provider，再启动consumer服务。