SpringBoot_F~MyBatis

一 引入依赖

<dependency>
    <groupId>org.mybatis.spring.boot</groupId>
    <artifactId>mybatis-spring-boot-starter</artifactId>
    <version>1.1.1</version>
</dependency>

二 application.properties 添加相关配置

mybatis.type-aliases-package=com.study.springboot.SpringBoot_A.bean

三 添加扫描@MapperScan（否则就需要在每个Mapper接口上添加@Mapper注解）

@MapperScan(basePackages = "")

四 采用注解方式编写mapper （xml方式不介绍）

public interface UserMapper {

@Select("select * from user")

@Results({

@Result(property = "userName", column = "user_name"),

@Result(property = "nickName", column = "nick_name"),

@Result(property = "passWord", column = "pass_word"),

@Result(property = "regTime", column = "reg_time")

})

List<User> getAll();

@Insert("insert into user (user_name, nick_name, pass_word) values (#{userName}, #{nickName}, #{passWord})")

Integer addUser(@Param("userName") String userName, @Param("nickName") String nickName, @Param("passWord") String passWord);

//    Integer addUser(User user);

@Update("UPDATE user SET userName = #{userName}, nick_name = #{nickName} WHERE id = #{id}")

Integer updateUser(User user);

}

@Delete("DELETE FROM user WHERE id =#{id}")

void delete(Long id);

    }