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1、导出Excel :
首先引用NPOI包(Action一定要用FileResult)
/// <summary>
/// 批量导出需要导出的列表
/// </summary>
/// <returns></returns>
public FileResult ExportStu2()
{
//获取list数据
var checkList = (from oc in db.OrganizeCustoms
join o in db.Organizes.DefaultIfEmpty() on oc.custom_id equals o.id
where oc.organize_id == 1
select new
{
customer_id = o.id,
customer_name = o.name
}).ToList();
//创建Excel文件的对象
NPOI.HSSF.UserModel.HSSFWorkbook book = new NPOI.HSSF.UserModel.HSSFWorkbook();
//添加一个sheet
NPOI.SS.UserModel.ISheet sheet1 = book.CreateSheet("Sheet1");
//貌似这里可以设置各种样式字体颜色背景等,但是不是很方便,这里就不设置了
//给sheet1添加第一行的头部标题
NPOI.SS.UserModel.IRow row1 = sheet1.CreateRow(0);
row1.CreateCell(0).SetCellValue("编号");
row1.CreateCell(1).SetCellValue("姓名");
//....N行
//将数据逐步写入sheet1各个行
for (int i = 0; i < checkList.Count; i++)
{
NPOI.SS.UserModel.IRow rowtemp = sheet1.CreateRow(i + 1);
rowtemp.CreateCell(0).SetCellValue(checkList.customer_id.ToString());
rowtemp.CreateCell(1).SetCellValue(checkList.customer_name.ToString());
//....N行
}
// 写入到客户端
System.IO.MemoryStream ms = new System.IO.MemoryStream();
book.Write(ms);
ms.Seek(0, SeekOrigin.Begin);
DateTime dt = DateTime.Now;
string dateTime = dt.ToString("yyMMddHHmmssfff");
string fileName = "查询结果" + dateTime + ".xls";
return File(ms, "application/vnd.ms-excel", fileName);
}
前台直接写
@Html.ActionLink("点击导出Excel", "ExportStu2")
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