spring boot整合mybatis

示例项目地址：https://gitee.com/zhangjunqing/spring-boot/tree/master/springboot-mybatis-sample

1 整合过程

        1.1 本次整合使用druid连接池，由于spring boot本身就带mybatis，故只需要引入相关依赖就行

       pom.xml文件如下

<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.springboot</groupId>
  <artifactId>springboot-mybatis-sample</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>jar</packaging>
  

  <name>springoot</name>
  <url>http://maven.apache.org</url>
  
  <!-- 使用spring boot必须有这依赖 -->
  <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.7.RELEASE</version>
        <relativePath /> <!-- lookup parent from repository -->
    </parent>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
  </properties>

  <dependencies>
     <!-- 引入web 服务tomcat，web框架spring web mvc-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        
    <!-- MYSQL -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
        
            <!-- druid数据源 -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.0.26</version>
        </dependency>
        
        <!-- 整合mybatis -->
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>1.0.0</version>
        </dependency>
        
        <!-- mybatis分页插件-->
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper</artifactId>
            <version>3.2.3</version>
        </dependency>
        
        
        <!-- 单元测试 启动器 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        
        
  </dependencies>
</project>

   1.2 进行启动文件 application.yml配置

server:
  port: 8080
logging:
#  config: classpath:logback.xml
  path: D:log
#配置数据源
spring:
  datasource:
    url: jdbc:mysql://localhost:3306/test
    username: root
    password: 
    driver-class-name: com.mysql.jdbc.Driver
    type: com.alibaba.druid.pool.DruidDataSource
mybatis:
  typeAliasesPackage: com.springboot.model        #实体bean包
  mapperLocations: classpath:mapper/*Mapper.xml   #映射文件存放地址

  1.3 启动类需要添加@MapperScan  来指定要mybatis 映射接口

package com.springboot;

import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@MapperScan("com.springboot.mapper")//mybatis的映射接口
@SpringBootApplication  //注意此类的包地址应该是最大的包，这样他就可以自动扫描其下包的所有类.否则也可以(scanBasePackages={"com.springboot.controller"})指定要扫描的包
public class App {
    public static void main(String[] args) throws Exception {
        SpringApplication.run(App.class, args);
    }
}

注:通过引入spring boot本身mybatis的支持，在启动配置文件中 ,指定数据源，mapper文件地址，模型bean地址，然后在启动类上标注要扫描的接口，就完成了简单的mybatis整合。