标签：case break sheet string Excel --- Api status cellValue
命名空间：
using System.Data;
using System.Linq;
using System;
using System.IO;
using NPOI.HSSF.UserModel;
using NPOI.SS.UserModel;
using NPOI.XSSF.UserModel;
接口：
namespace Yes.Manage.Api.Controllers.Craftsman
{
[Route("api/[controller]/[action]")]
[ApiController]
public class CraftsmanController : ControllerBase {
[HttpPost]
public ActionResult<SysStatus> daotru(IFormFile fct)
{
SysStatus status = new SysStatus();
try
{
if (fct != null)
{
if (fct.Length > 0)
{
DataTable dt = new DataTable();
string strMsg = "";
//利用IFormFile里面的OpenReadStream()方法直接读取文件流
dt =ExcelToDatatable(fct.OpenReadStream(), Path.GetExtension(fct.FileName), out strMsg);//
if (!string.IsNullOrEmpty(strMsg))
{
status.Code = 5;
status.Message = strMsg;
}
else
{
if (dt.Rows.Count > 0)
{
if (Posdate(dt))//posdate是把DataTable dt数据导入数据库中，返回bool类型
{
status.Code = 0;
status.Message = "数据导入成功";
}
else
{
status.Code = 2;
status.Message = "数据导入失败";
}
}
else
{
status.Code = 3;
status.Message = "Excel导入表无数据!";
}
}
}
}
else
{
status.Code = 6;
status.Message = "文件不能为空";
}
}
catch (Exception ex)
{
status.Code = 4;
status.Message = ex.Message;
}
return status;
}
}
}
#region excel表格数据加载数据库表
/// <summary>
/// 将Excel单表转为Datatable
/// </summary>
/// <param name="stream"></param>
/// <param name="fileType"></param>
/// <param name="strMsg"></param>
/// <param name="sheetName"></param>
/// <returns></returns>
public DataTable ExcelToDatatable(Stream stream, string fileType, out string strMsg, string sheetName = null)
{
strMsg = "";
DataTable dt = new DataTable();
ISheet sheet = null;
IWorkbook workbook = null;
try
{
#region 判断excel版本
//2007以上版本excel
if (fileType == ".xlsx")
{
workbook = new XSSFWorkbook(stream);
}
//2007以下版本excel
else if (fileType == ".xls")
{
workbook = new HSSFWorkbook(stream);
}
else
{
throw new Exception("传入的不是Excel文件！");
}
#endregion
if (!string.IsNullOrEmpty(sheetName))
{
sheet = workbook.GetSheet(sheetName);
if (sheet == null)
{
sheet = workbook.GetSheetAt(0);
}
}
else
{
sheet = workbook.GetSheetAt(0);
}
if (sheet != null)
{
IRow firstRow = sheet.GetRow(0);
int cellCount = firstRow.LastCellNum;
for (int i = firstRow.FirstCellNum; i < cellCount; i++)
{
ICell cell = firstRow.GetCell(i);
if (cell != null)
{
string cellValue = cell.StringCellValue.Trim();
switch (cellValue)
{
case "证书类型":
cellValue = "CertificateType";
break;
case "姓名":
cellValue = "CraftsmanName";
break;
case "性别":
cellValue = "CraftsmanSex";
break;
case "学历":
cellValue = "CraftsmanEducation";
break;
case "手机号":
cellValue = "CraftsmanPhone";
break;
case "身份证号":
cellValue = "IdCard";
break;
case "证书编号":
cellValue = "CertificateId";
break;
case "证书有效期":
cellValue = "CertificateTimes";
break;
case "户籍地址":
cellValue = "HjAddress";
break;
case "常住地址":
cellValue = "CzAddress";
break;
case "所属乡镇":
cellValue = "Township";
break;
case "证书链接":
cellValue = "CertificateUrl";
break;
case "头像":
cellValue = "CraftsmanUrl";
break;
case "身份证正面":
cellValue = "IcFrontUrl";
break;
case "身份证反面":
cellValue = "IcBackUrl";
break;
}
if (!string.IsNullOrEmpty(cellValue))
{
DataColumn dataColumn = new DataColumn(cellValue);
dt.Columns.Add(dataColumn);
}
}
}
DataRow dataRow = null;
//遍历行
for (int j = sheet.FirstRowNum + 1; j <= sheet.LastRowNum; j++)
{
IRow row = sheet.GetRow(j);
dataRow = dt.NewRow();
if (row == null || row.FirstCellNum < 0)
{
continue;
}
//遍历列
for (int i = row.FirstCellNum; i < cellCount; i++)
{
ICell cellData = row.GetCell(i);
if (cellData != null)
{
//判断是否为数字型，必须加这个判断不然下面的日期判断会异常
if (cellData.CellType == CellType.Numeric)
{
//判断是否日期类型
if (DateUtil.IsCellDateFormatted(cellData))
{
dataRow[i] = cellData.DateCellValue;
}
else
{
dataRow[i] = cellData.ToString().Trim();
}
}
else
{
dataRow[i] = cellData.ToString().Trim();
}
}
}
dt.Rows.Add(dataRow);
}
}
else
{
throw new Exception("没有获取到Excel中的数据表！");
}
}
catch (Exception ex)
{
strMsg = ex.Message;
}
return dt;
}
#endregion
标签：case,break,sheet,string,Excel,---,Api,status,cellValue 来源： https://www.cnblogs.com/Simple-520/p/15922805.html
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