定义抄表区间包括抄表种类,抄表规格,抄表周期,以及时间范围,请生成基于SpringBoot +mybatis的相关sql和Java代码

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小小草
小小草 LV1 2023年9月23日 23:40 发表
以下是基于SpringBoot + MyBatis的相关SQL和Java代码: 1. 创建抄表区间表 ```sql CREATE TABLE meter_reading_interval ( id INT(11) NOT NULL AUTO_INCREMENT COMMENT '主键ID', type VARCHAR(50) NOT NULL COMMENT '抄表种类', specification VARCHAR(50) NOT NULL COMMENT '抄表规格', cycle INT(11) NOT NULL COMMENT '抄表周期(天)', start_time DATETIME NOT NULL COMMENT '开始时间', end_time DATETIME NOT NULL COMMENT '结束时间', PRIMARY KEY (id) ) ENGINE=INNODB DEFAULT CHARSET=utf8mb4 COMMENT='抄表区间表'; ``` 2. 定义MeterReadingInterval实体类 ```java public class MeterReadingInterval { private Integer id; private String type; private String specification; private Integer cycle; private Date startTime; private Date endTime; // getter and setter methods } ``` 3. 创建Mapper接口 ```java @Mapper public interface MeterReadingIntervalMapper { @Select("SELECT * FROM meter_reading_interval WHERE id = #{id}") MeterReadingInterval findById(Integer id); @Insert("INSERT INTO meter_reading_interval(type, specification, cycle, start_time, end_time) " + "VALUES(#{type}, #{specification}, #{cycle}, #{startTime}, #{endTime})") int insert(MeterReadingInterval meterReadingInterval); @Update("UPDATE meter_reading_interval SET type=#{type}, specification=#{specification}, cycle=#{cycle}, " + "start_time=#{startTime}, end_time=#{endTime} WHERE id=#{id}") int update(MeterReadingInterval meterReadingInterval); @Delete("DELETE FROM meter_reading_interval WHERE id=#{id}") int delete(Integer id); } ``` 4. 创建Service层 ```java @Service public class MeterReadingIntervalService { @Autowired private MeterReadingIntervalMapper meterReadingIntervalMapper; public MeterReadingInterval findById(Integer id) { return meterReadingIntervalMapper.findById(id); } public int insert(MeterReadingInterval meterReadingInterval) { return meterReadingIntervalMapper.insert(meterReadingInterval); } public int update(MeterReadingInterval meterReadingInterval) { return meterReadingIntervalMapper.update(meterReadingInterval); }
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