ASP.NET MVC导出Excel 避免身份证号码格式乱码问题，
利用导出的Excel的脚本增加“vnd.ms-excel.numberformat:@”的style来解决
导出省份证号码的科学计数法的问题
/// <summary>
/// 导出Excel文件
/// </summary>
/// <param name="ls">数据集</param>
/// <returns></returns>
public FileResult ExportExcel(List<EmployeeExcel> ls)
{
var sbHtml = new StringBuilder();
sbHtml.Append("<table border='1' cellspacing='0' cellpadding='0'>");
sbHtml.Append("<tr>");
var lstTitle = new List<string> ();
PropertyInfo[] properties = typeof(EmployeeExcel).GetProperties();
for (int i = 0; i < properties.Length; i++)
{
string headName = properties[i].Name;
Attribute attribute = Attribute.GetCustomAttribute(properties[i], typeof(DisplayNameAttribute));
if (attribute != null)
{
DisplayNameAttribute displayNameAttribute = attribute as DisplayNameAttribute;
if (displayNameAttribute != null && !string.IsNullOrWhiteSpace(displayNameAttribute.DisplayName))
{
headName = displayNameAttribute.DisplayName;
}
}
lstTitle.Add(headName);
}
foreach (var item in lstTitle)
{
sbHtml.AppendFormat("<td style='font-size: 14px;text-align:center;background-color: #DCE0E2; font-weight:bold;' height='25'>{0}</td>", item);
}
sbHtml.Append("</tr>");
for (int i = 0; i < ls.Count; i++)
{
sbHtml.Append("<tr>");
for (int j = 0; j < properties.Length; j++)
{
string sign = j == properties.Length - 1 ? "\n" : "\t";
object obj = properties[j].GetValue(ls[i], null);
sbHtml.AppendFormat("<td style='font-size: 12px;height:20px;vnd.ms-excel.numberformat:@'>{0}</td>", obj);
}
sbHtml.Append("</tr>");
}
sbHtml.Append("</table>");
//第一种:使用FileContentResult
byte[] fileContents = Encoding.Default.GetBytes(sbHtml.ToString());
DateTime time = DateTime.Now;
String fileName = string.Format("{0}_{1}_{2}_{3}",
time.Month, time.Day, time.Hour, time.Minute);
return File(fileContents, "application/ms-excel", fileName+".xls");
}
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