mybatis 批量刪除資料
阿新 • • 發佈:2019-01-09
mybatis
批量刪除資料,將需要刪除的資料id
存放到list
中,將list
作為引數傳遞,具體程式碼如下:
1、在mapper層中建立deleteAudioAudioFiles
(@Param(“ids”)List ids) 方法,返回刪除的資料條數
package com.center.manager.mapper;
import java.util.List;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;
import com.center.manager. bean.Audio;
@Mapper
public interface AudioMapper {
int deleteAudioAudioFiles(@Param("ids")List<String> ids); //批量刪除資料
}
2、mybatis的xml檔案中的delete語句如下:
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="com.center.manager.mapper.AudioMapper">
<delete id="deleteAudioAudioFiles">
delete from
t_audio
where audio_file in
<foreach collection="ids" item="id" open="(" separator="," close=")">
#{id,jdbcType=VARCHAR}
</foreach>
</delete>
</mapper>