jquery.form.js异步提交表单详解

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//前端代码:<form id="f1">  <span class="btn-upload form-group">   <input class="input-text upload-url radius" type="text" name="uploadfile-1" id="uploadfile-1" readonly><a href="javascript:void();" rel="external nofollow" class="btn btn-primary radius"><i class="iconfont">󰀠</i> 浏览文件</a>   <input type="file" multiple name="file-1" class="input-file">  </span>  <input type="button" class="btn btn-warning radius mt-10 f-l mr-10" onclick="ImportData(this)" value="保存"/>  <a href="/files/企业表.xls" rel="external nofollow" target="_blank" class="f-16 l-30 mt-10 f-l c-danger">下载范例</a>  <div class="clearfix"></div> </form>//提交表单  $("#f1").ajaxSubmit({   url: "/ImportAndCheck/ImportCompanyOperation/",   type: "post",   enctype: "multipart/form-data",   dataType: "html",   beforeSubmit: function () {    $(obj).val("保存中...").attr("disabled", true);   },   success: function (response) {    try {     data = JSON.parse(response);     if (data.code > 0) {      layer.msg(data.msg, { time: 1000 });      setTimeout(function () {       window.location.href = "/ImportAndCheck/ImportCompany?status=0";      }, 1000);     } else {      layer.msg(data.msg, { time: 1000 });      $(obj).val("保存").attr("disabled", false);     }    } catch (err) {     layer.msg("导入失败！", { time: 1000 });     $(obj).val("保存").attr("disabled", false);    }   },   error: function (XmlHttpRequest, textStatus, errorThrown) {    layer.msg("导入失败", { time: 1000 });    $(obj).val("保存").attr("disabled", false);   }  });

//服务端HttpFileCollection files = System.Web.HttpContext.Current.Request.Files; ReturnJsonCode jsonCode = new ReturnJsonCode();   if (files == null || files.Count == 0)   {    jsonCode.msg = "请选择上传的导入文件";    return jsonCode;   }   //验证文件类型   if (files != null && files.Count > 0)   {    HttpPostedFile file = null;    file = files[0];    //扩展名检查    string picext = System.IO.Path.GetExtension(file.FileName).ToLower();    if (picext != ".xls")    {     jsonCode.msg = "上传文件仅支持xls文档格式";     return jsonCode;    }    DataTable db = ExcelToDataTable(file, file.FileName, 0);    int failcount = 0;    int successcount = 0;    if (db != null && db.Rows.Count > 0)    {     foreach (DataRow dr in db.Rows)     {      string mobile = dr["手机号码"].ToString().Trim();      string truename = dr["姓名"].ToString().Trim();      string iskejizhuanyuan = dr["科技专员"].ToString().Trim();      string sex = dr["性别"].ToString().Trim();

/// <summary> /// Excel文件导成Datatable /// </summary> /// <param name="strFilePath">Excel文件目录地址</param> /// <param name="strTableName">Datatable表名</param> /// <param name="iSheetIndex">Excel sheet index</param> /// <returns></returns> public static DataTable ExcelToDataTable(string strFilePath, string strTableName, int iSheetIndex) {  var strExtName = Path.GetExtension(strFilePath);  var dt = new DataTable();  if (!string.IsNullOrEmpty(strTableName))  {  dt.TableName = strTableName;  }  if (strExtName.Equals(".xls"))  {  using (var file = new FileStream(strFilePath, FileMode.Open, FileAccess.Read))  {   var workbook = new HSSFWorkbook(file);   var sheet = workbook.GetSheetAt(iSheetIndex);   //列头   foreach (var item in sheet.GetRow(sheet.FirstRowNum).Cells)   {   dt.Columns.Add(item.ToString(), typeof(string));   }   //写入内容   var rows = sheet.GetRowEnumerator();   while (rows.MoveNext())   {   IRow row = (HSSFRow)rows.Current;   if (row.RowNum == sheet.FirstRowNum)   {    continue;   }   var dr = dt.NewRow();   foreach (var item in row.Cells)   {    switch (item.CellType)    {    case CellType.Boolean:     dr[item.ColumnIndex] = item.BooleanCellValue;     break;    case CellType.Error:     dr[item.ColumnIndex] = ErrorEval.GetText(item.ErrorCellValue);     break;    case CellType.Formula:     switch (item.CachedFormulaResultType)     {     case CellType.Boolean:      dr[item.ColumnIndex] = item.BooleanCellValue;      break;     case CellType.Error:      dr[item.ColumnIndex] = ErrorEval.GetText(item.ErrorCellValue);      break;     case CellType.Numeric:      if (DateUtil.IsCellDateFormatted(item))      {      dr[item.ColumnIndex] = item.DateCellValue.ToString("yyyy-MM-dd hh:MM:ss");      }      else      {      dr[item.ColumnIndex] = item.NumericCellValue;      }      break;     case CellType.String:      var str = item.StringCellValue;      if (!string.IsNullOrEmpty(str))      {      dr[item.ColumnIndex] = str;      }      else      {      dr[item.ColumnIndex] = null;      }      break;     case CellType.Unknown:     case CellType.Blank:     default:      dr[item.ColumnIndex] = string.Empty;      break;     }     break;    case CellType.Numeric:     if (DateUtil.IsCellDateFormatted(item))     {     dr[item.ColumnIndex] = item.DateCellValue.ToString("yyyy-MM-dd hh:MM:ss");     }     else     {     dr[item.ColumnIndex] = item.NumericCellValue;     }     break;    case CellType.String:     var strValue = item.StringCellValue;     if (!string.IsNullOrEmpty(strValue))     {     dr[item.ColumnIndex] = strValue;     }     else     {     dr[item.ColumnIndex] = null;     }     break;    case CellType.Unknown:    case CellType.Blank:    default:     dr[item.ColumnIndex] = string.Empty;     break;    }   }   dt.Rows.Add(dr);   }  }  }  return dt; }