mybatis批量新增、删除、查询和修改方式

<insert id="createBatchUserInfoList" useGeneratedKeys="true" parameterType="java.util.List" >
        insert into
            el_user_info (id,user_name,user_tel,pass_word,user_sex,del_mark,position_id,agency_id,create_date,update_date,role_id,employee_id,org_id)
        values
        <foreach collection="list" item="item" index="index" separator="," >
            (#{item.id},#{item.userName},#{item.userTel}, #{item.passWord},#{item.userSex},
             #{item.delMark},#{item.positionId},#{item.agencyId},#{item.createDate},#{item.updateDate},#{item.roleId},#{item.employeeId},#{item.orgId})
        </foreach>
    </insert>

/**
     * 批量插入
     *
     * @param list
     * @return
     */
    int createBatchUserInfoList(List<ElUserInfo> list);
serviceImpl实现类：
try {
            List<ElUserInfo>  userList = new ArrayList<ElUserInfo>();
            if (CollectionUtils.isNotEmpty(list)) {
                //组织id
                Long orgId = elAppInfoService.getOrg().getOrgId();
                for (int i = 0; i < list.size(); i++) {
                    Map<String, Object> map = list.get(i);
                    String userSex = map.get("userSex").toString().trim();
                    String userName = map.get("userName").toString().trim();
                    String userTel = map.get("userTel").toString().trim();
                    String key = userName + userTel;
 
                    String redisCacheByKey = redisCacheService.getRedisCacheByKey(key);
                    log.info(redisCacheByKey);
                    if (!StringUtils.isEmpty(redisCacheByKey)) {
                       //redisCacheService.deleteRedisCacheByKey(key);
                            continue;
                    }
                    if ("男".equals(userSex)) {
                        userSex = "0";
                    } else if ("女".equals(userSex)){
                        userSex = "1";
                    }
                    ElUserInfo user = new ElUserInfo();
                    user.setUserName(userName);
                    user.setUserTel(userTel);
                    user.setPassWord(MD5(map.get("passWord").toString().trim()));
                    user.setUserSex(userSex);
                    user.setPositionId(postionId);
                    user.setAgencyId(agencyId);
                    user.setCreateDate(new Date());
                    user.setUpdateDate(new Date());
                    user.setDelMark(0);
                    user.setRoleId(1L);
                    user.setEmployeeId(0L);
                    user.setOrgId(orgId);
                    userList.add(user);
                }
                if (CollectionUtils.isNotEmpty(userList)) {
                    //先持久化本地
                    row = userInfoMapper.createBatchUserInfoList(userList);
                    if (row > 0) {
                        //持久化成功后同步组织平台
                        String add = orgEmployeeService.addOrganRoleUserToPlatform(userList, "add");
                        if (!StringUtils.isEmpty(add) && !"-1".equals(add) && !"null".equals(add)) {
                            //以用户手机号码为唯一标示，批量修改OrgId和EmployeeId
                            userInfoMapper.updateBatchOrgId(userList);
                        }
                        log.info(this.getClass().getName()+"的UserInfoThread"+add.toString());
                    }
                }
            }
        } catch (Exception e) {
            log.error("elPositionInfoServiceImpl的UserInfoThread方法error"+e.getMessage(),e);
        }

<delete id="batchDeleteUser">
        delete from t_user where id in (
        <foreach collection="ids" item="id" separator=",">
            #{id}
        </foreach>
        )  
 </delete>
<!-- 第二种批量删除的写法 -->
<!-- open表示该语句以什么开始，close表示以什么结束 -->
<delete id="">
        delete from t_user where id in 
        <foreach collection="ids" item="id" separator="," open="(" close=")">
            #{id}
        </foreach>
</delete>

int batchDeleteUser(int[] ids);

 <select id="getPostionListIdsByRoleCode" resultType="com.xxx.bean.ElPositionInfo" parameterType="java.util.List">
    select
          <include refid="Base_Column_List" />
    from el_position_info
    where roleCode in
    <foreach collection="list" item="item" index="index" open="(" close=")" separator=",">
         #{item.roleCode}
    </foreach>
  </select>

List<ElPositionInfo> getPostionListIdsByRoleCode(List<ElPositionInfo> list);

SELECT  SUM(population), 
        CASE country 
                WHEN '中国'     THEN '亚洲' 
                WHEN '印度'     THEN '亚洲' 
                WHEN '日本'     THEN '亚洲' 
                WHEN '美国'     THEN '北美洲' 
                WHEN '加拿大'  THEN '北美洲' 
                WHEN '墨西哥'  THEN '北美洲' 
        ELSE '其他' END 
FROM    Table_A 

<!-- 批量修改设备在线状态 -->
   <update id="updateBatchOnlineState" parameterType="java.util.List">
    update t_device 
      set online_state = case device_no
       <foreach collection="list" item="item">  
           WHEN #{item.deviceNo} THEN #{item.onlineState}  
      </foreach>
      END 
    where 
     device_no in 
  <foreach collection="list" open="(" separator="," close=")" item="device">
   #{device.deviceNo}
  </foreach>
  </update>

int updateBatchOnlineState(List<Device> list);

//在线设备编号  前端300秒调用一次 ，服务端640秒认为过期
  List<String> deviceNos = DeviceCache.getDeviceNo(640);
  List<Device> list = new ArrayList<Device>();
  if (CollectionUtils.isNotEmpty(deviceNos)) {
   for (String str : deviceNos) {
    Device device = new Device();
    int indexOf = str.lastIndexOf("-");
    String deviceNo = str.substring(0, indexOf);
    String type = str.substring(indexOf+1, str.length());
    device.setDeviceNo(deviceNo);
    device.setOnlineState(Integer.valueOf(type));
    list.add(device);
   }
   int row = deviceService.updateBatchOnlineState(list);
   if (row < 1) {
    logger.debug("批量修改失败！");
   } else {
    logger.debug("批量修改成功，已实时获取设备在线状态！");
   }
  } else {
   logger.debug("目前没有设备在线！");
   deviceService.modifyAllNotOnline();
  }