Springboot整合Mybatispuls的实例详解

springboot整合mybatispuls

maven导入依赖，主要只需导入mybatispuls

<dependency>
      <groupid>org.springframework.boot</groupid>
      <artifactid>spring-boot-starter-data-jdbc</artifactid>
    </dependency>
    <dependency>
      <groupid>com.baomidou</groupid>
      <artifactid>mybatis-plus-boot-starter</artifactid>
      <version>3.0.1</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>

配置数据源

spring.datasource.username=root
spring.datasource.password=root
spring.datasource.driver-class-name=com.mysql.cj.jdbc.driver
spring.datasource.url=jdbc:mysql://localhost:3306/springboot?useunicode=true&characterencoding=utf-8&servertimezone=utc
server.port=8082

编写实体类

@data
@allargsconstructor
@noargsconstructor
@tablename("users")//连接的表名
public class users implements serializable {
  @tableid("id")标记该变量为主键
  private integer id;
  private string account;
  @tablefield("passwraod" )//如果实体类变量和数据库不同使用
  private string password;
  private integer authority;
}

mapper接口编写
继承basemapper<这里为实体类>

@org.apache.ibatis.annotations.mapper//让spring容器扫描该类为mapper
@repository
public interface mapper extends basemapper<users> {
}

basemapper源码

实现接口方法

@restcontroller
public class control {
  @autowired
  mapper mapper;
  @requestmapping("/hello")
  public users select(){
    users users = mapper.selectbyid(1);
    return users;
  }

}

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