springboot + Mybatis

1.maven添加dependency

<!--数据库开始-->

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<dependency>
    <groupId>commons-dbcp</groupId>
    <artifactId>commons-dbcp</artifactId>
    <version>1.4</version>
</dependency>
<dependency>
    <groupId>org.apache.commons</groupId>
    <artifactId>commons-pool2</artifactId>
    <version>RELEASE</version>
</dependency>
<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>5.1.29</version>
</dependency>
<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>druid</artifactId>
    <version>1.1.10</version>
</dependency>
<dependency>
    <groupId>org.mybatis.spring.boot</groupId>
    <artifactId>mybatis-spring-boot-starter</artifactId>
    <version>1.3.2</version>
</dependency>

2.yml添加数据库连接参数

　　

server:

port: 8016

spring:
  cache:
    ehcache:
      config: classpath:/ehcache.xml

  datasource:
    url: jdbc:mysql://127.0.0.1:3306/ipt?useUnicode=true&characterEncoding=utf8&useSSL=false&allowMultiQueries=true
    username: root
    password: 123456
    driver-class-name: com.mysql.jdbc.Driver

mybatis:
  type-aliases-package: com.example.demo.entity
  mapper-locations: classpath:mapper/*.xml

 3.启动类注释需要扫描文件的路径，添加bean 

@MapperScan("com.example.demo.dao") //扫描的mapper（*Mapper.java）

4. 在resource/mapper 目录下建 *Mapper.xml,编写sql语句

5.实体类entity ， user.java

说明:

3-5可以通过mybatis generator插件自动生成。