先上一个Helper类：
public class NopiHelper
{
public string DataTableToExcel(DataTable tempDataTable, string path, bool is2007 = true)
{
try
{
//创建工作薄
var wk = GetWorkbook(is2007);
SetHssfWorkbook(wk, tempDataTable);
var outPath = string.Format(@"{0}.{1}", path, is2007 ? @"xlsx" : @"xls");
using (var file = new FileStream(outPath, FileMode.Create))
{
wk.Write(file);
}
return outPath;
}
catch (Exception ex)
{
throw ex;
}
}
public MemoryStream DataTableToExcel(DataTable tempDataTable)
{
try
{
//创建工作薄
var wk = new HSSFWorkbook();
SetHssfWorkbook(wk, tempDataTable);
var file = new MemoryStream();
wk.Write(file);
return file;
}
catch (Exception ex)
{
throw ex;
}
}
public MemoryStream DataTableToExcel(DataSet ds)
{
try
{
var wk = new HSSFWorkbook();
//创建工作薄
for (int i = 0; i < ds.Tables.Count; i++)
{
SetHssfWorkbook(wk, ds.Tables[i]);
}
var file = new MemoryStream();
wk.Write(file);
return file;
}
catch (Exception ex)
{
throw ex;
}
}
public MemoryStream DataTableToExcel_Xlsx(DataSet ds)
{
try
{
var wk = new XSSFWorkbook();
//创建工作薄
for (int i = 0; i < ds.Tables.Count; i++)
{
SetHssfWorkbook(wk, ds.Tables[i]);
}
var file = new MemoryStream();
wk.Write(file);
return file;
}
catch (Exception ex)
{
throw ex;
}
}
public DataTable GetFromExcel(string filePath, bool isFirstRowColumn = true)
{
try
{
ISheet sheet = null;
DataTable data = new DataTable();
int startRow = 0;
var workbook = GetWorkbook(filePath);
sheet = workbook.GetSheetAt(0);
if (sheet != null)
{
IRow firstRow = sheet.GetRow(0);
int cellCount = firstRow.LastCellNum; //一行最后一个cell的编号 即总的列数
if (isFirstRowColumn)
{
for (int i = firstRow.FirstCellNum; i < cellCount; ++i)
{
ICell cell = firstRow.GetCell(i);
if (cell != null)
{
string cellValue = cell.StringCellValue;
if (cellValue != null)
{
DataColumn column = new DataColumn(cellValue);
data.Columns.Add(column);
}
}
}
startRow = sheet.FirstRowNum + 1;
}
else
{
startRow = sheet.FirstRowNum;
}
//最后一列的标号
int rowCount = sheet.LastRowNum;
for (int i = startRow; i <= rowCount; ++i)
{
IRow row = sheet.GetRow(i);
if (row == null) continue; //没有数据的行默认是null
DataRow dataRow = data.NewRow();
for (int j = row.FirstCellNum; j < cellCount; ++j)
{
if (row.GetCell(j) != null) //同理，没有数据的单元格都默认是null
dataRow[j] = row.GetCell(j).ToString();
}
data.Rows.Add(dataRow);
}
}
return data;
}
catch (Exception ex)
{
throw ex;
}
}
public DataTable GetFromExcel(Stream stream, bool isFirstRowColumn = true)
{
try
{
ISheet sheet = null;
DataTable data = new DataTable();
int startRow = 0;
var workbook = new NPOI.XSSF.UserModel.XSSFWorkbook(stream); // 2007 格式
sheet = workbook.GetSheetAt(0);
if (sheet != null)
{
IRow firstRow = sheet.GetRow(0);
int cellCount = firstRow.LastCellNum; //一行最后一个cell的编号 即总的列数
if (isFirstRowColumn)
{
for (int i = firstRow.FirstCellNum; i < cellCount; ++i)
{
ICell cell = firstRow.GetCell(i);
if (cell != null)
{
string cellValue = cell.StringCellValue;
if (cellValue != null)
{
DataColumn column = new DataColumn(cellValue);
data.Columns.Add(column);
}
}
}
startRow = sheet.FirstRowNum + 1;
}
else
{
startRow = sheet.FirstRowNum;
}
//最后一列的标号
int rowCount = sheet.LastRowNum;
for (int i = startRow; i <= rowCount; ++i)
{
IRow row = sheet.GetRow(i);
if (row == null) continue; //没有数据的行默认是null
DataRow dataRow = data.NewRow();
for (int j = row.FirstCellNum; j < cellCount; ++j)
{
if (row.GetCell(j) != null) //同理，没有数据的单元格都默认是null
dataRow[j] = row.GetCell(j).ToString();
}
data.Rows.Add(dataRow);
}
}
return data;
}
catch (Exception ex)
{
throw ex;
}
}
#region Private
private IWorkbook GetWorkbook(string path)
{
try
{
IWorkbook userModel;
using (var file = new FileStream(path, FileMode.Open, FileAccess.Read))
{
try
{
userModel = new NPOI.XSSF.UserModel.XSSFWorkbook(file); // 2007 格式
}
catch (Exception)
{
userModel = new NPOI.HSSF.UserModel.HSSFWorkbook(file); // 2003 格式
}
finally
{
file.Close();
}
}
return userModel;
}
catch (Exception ex)
{
throw ex;
}
}
private IWorkbook GetWorkbook(bool is2007 = true)
{
try
{
IWorkbook userModel;
if (is2007)
userModel = new NPOI.XSSF.UserModel.XSSFWorkbook(); // 2007 格式
else
userModel = new NPOI.HSSF.UserModel.HSSFWorkbook(); // 2003 格式
return userModel;
}
catch (Exception ex)
{
throw ex;
}
}
private void SetHssfWorkbook(IWorkbook hssfWorkbook, DataTable tempDataTable)
{
try
{
//创建一个名称为mySheet的表
var tb = hssfWorkbook.CreateSheet(tempDataTable.TableName);
//标题行
var rowhead = tb.CreateRow(0);
for (var i = 0; i < tempDataTable.Columns.Count; i++) //写入字段
{
var cell = rowhead.CreateCell(i); //在第二行中创建单元格
cell.SetCellValue(tempDataTable.Columns[i].Caption); //循环往第二行的单元格中添加数据
}
for (var y = 0; y < tempDataTable.Rows.Count; y++)
{
var rowcontent = tb.CreateRow(y + 1);
for (int i = 0; i < tempDataTable.Columns.Count; i++)
{
var cell = rowcontent.CreateCell(i); //在第二行中创建单元格
cell.SetCellValue(tempDataTable.Rows[y][tempDataTable.Columns[i].ToString()].ToString());
//循环往第二行的单元格中添加数据
}
}
}
catch (Exception ex)
{
throw ex;
}
}
#endregion
}一、Excel导出功能：
页面按钮： window.open("/User/UserExportExcel/?SearchPhone=" + SearchPhone);/// <summary>
/// 导出用户列表
/// </summary>
/// <param name="collection"></param>
/// <returns></returns>
public ActionResult UserExportExcel(FormCollection collection)
{
try
{
var searchEntity = GetSelect();
var listData = new UserBll().GetList(searchEntity).OrderByDescending(c => c.Id).ToList();
DataSet ds = new DataSet();
var dt = new DataTable();
dt.Columns.Add("序号");
dt.Columns.Add("编号");
dt.Columns.Add("用户名");
var i = 1;
if (listData.Count > 20000)
{
DataRow dr = dt.NewRow();
dr["序号"] = i++;
dr["编号"] = "数据过多请缩小时间范围，分批导出";
dr["用户名"] = "数据过多请缩小时间范围，分批导出";
dt.Rows.Add(dr);
}
else
{
listData.ForEach(entity =>
{
DataRow dr = dt.NewRow();
dr["序号"] = i++;
dr["编号"] = entity.No;
dr["用户名"] = entity.Name;
dt.Rows.Add(dr);
});
}
dt.TableName = "用户列表_" + ConfigInfo.CurrrentDateTime.ToString("yyyyMMdd") + "_" + (1).ToString().PadLeft(4, '0') + ".xlsx";
ds.Tables.Add(dt);
string title = "用户列表（" + ConfigInfo.CurrrentDateTime.ToString("yyyyMMdd") + "）" + ".xlsx";
var stream = new NopiHelper().DataTableToExcel_Xlsx(ds);
return File(stream.ToArray(), "application/ms-excel", title);
}
catch (Exception ex)
{
throw;
}
}二、Excel导入功能：
1 、页面代码：
<input type="file" id="ExcelFile" accept=".csv,.xlsx" />
<input type="button" value="上传" id="btn_UploadExcel" />
<table id="table_body" cellpadding="5" cellspacing="0" width="100%" align="center" class="grid" border="0">
<thead>
<tr>
<th>序号</th>
<th>真实姓名</th>
<th>手机号</th>
<th>备注信息</th>
</tr>
</thead>
<tbody></tbody>
</table>
<input type="hidden" name="json" id="json" value="" /><input type="button" value="发送XX" id="btn_SendAddInterestActivity" />
//上传数据
$("#btn_UploadExcel").click(function () {
var obj = document.getElementById("ExcelFile");
var formdata = new FormData();
var fileObj = obj.files;
for (var i = 0; i < fileObj.length; i++)
formdata.append("file" + i, fileObj[i]);
$.ajax({
type: 'POST',
url: '/AddInterestActivity/UploadExcel',
data: formdata,
contentType: false,
processData: false
}).then(function (data) {
if (!isEmpty(data)) {
var html = "";
$.each(data, function (index, value) {
html += "<tr>";
html += "<td>" + value["序号"] + "</td>";
html += "<td>" + value["真实姓名"] + "</td>";
html += "<td>" + value["手机号"] + "</td>";
html += "<td>" + value["备注"] + "</td>";
html += "</tr>";
});
$("#table_body tbody").html(html);
}
else {
alert("数据类型错误");
}
}, function () {
//failCal
});
});收集数据保存：
//发送
$("#btn_SendAddInterestActivity").click(function () {
$.messager.confirm("确认", "确定执行此操作", function (r) {
var tbody = $("#table_body tbody");
var trList = tbody.children("tr")
var json = [];
for (var i = 0; i < trList.length; i++) {
var tdArr = trList.eq(i).find("td");
var RealName = tdArr.eq(1).html();//手机号
var UserPhone = tdArr.eq(2).html();//手机号
var Remark = tdArr.eq(3).html();//备注
if (UserPhone.indexOf("不合格") > 0 || RealName.indexOf("不合格") > 0) {
alert("不合格");
$("#submitloading").hide();
return false;
}
json.push({ "UserPhone": UserPhone, "RealName": RealName, "Remark": Remark });
}
$("#json").val(JSON.stringify(json));
//alert("发送红包");
var data = { json: $("#json").val(), activityId: $("#Id").val() };
$.ajax({
type: 'POST',
url: '/AddInterestActivity/SendAddInterestActivity',
data: data,
success: function (msg) {
if (msg.ResultType == 0) {
alert(msg.Message);
tbody.html("");
}
else {
alert("发送失败");
}
}
});
});
});3、上传控制器：
public ActionResult UploadExcel()
{
HttpFileCollectionBase fileToUpload = Request.Files;
foreach (string file in fileToUpload)
{
var curFile = Request.Files[file];
if (curFile.ContentLength < 1) continue;
string fileName = DateTime.Now.ToString("yyyyMMddHHmmss") + System.IO.Path.GetExtension(curFile.FileName);
if (fileName.Substring((fileName.IndexOf(".") + 1)) == "xls" || fileName.Substring((fileName.IndexOf(".") + 1)) == "xlsx" || fileName.Substring((fileName.IndexOf(".") + 1)) == "csv")
{
DataTable dt = new NopiHelper().GetFromExcel(curFile.InputStream);
if (!dt.Columns.Contains("手机号"))
{
return null;
}
for (int i = 0; i < dt.Rows.Count; i++)
{
//验证“手机号”
var toName = dt.Rows[i]["手机号"].ToString();
var operationResult_ToUser = new UserBll().GetByPhone(toName);
if (operationResult_ToUser.ResultType != OperationResultType.Success)
{
dt.Rows[i]["手机号"] += " <span style='color:red'>（不合格）</span>";
}
////验证“交易金额”
//var money = dt.Rows[i]["交易金额"].ToString();
//if (string.IsNullOrEmpty(money) || money == "0")
//{
// dt.Rows[i]["交易金额"] += " <span style='color:red'>（不合格）</span>";
//}
}
string json = Newtonsoft.Json.JsonConvert.SerializeObject(dt);
return Content(json, "text/json");
}
}
return null;
}[HttpPost]
public ActionResult SendAddInterestActivity(string json, int activityId)
{
try
{
//var importEndTime = Convert.ToDateTime(ImportEndTime);
if (json == "[]" || activityId == 0)
{
return Json(new OperationResult(OperationResultType.Success, @"上传文件错误，或活动不存在"));
}
//执行保存代码
return Json(new OperationResult(OperationResultType.Success, @"保存成功"));
}
catch (Exception ex)
{
throw;
}
}