将Excel上传到服务器，读取Excel数据写入到数据库

方法一：使用LinqToExcel.dll

1、上传Excel文件到服务器上

HttpPostedFileBase mypostfile = Request.Files[0];

string myfile = MyPathEx.myfileName(@"事业单位准考证上传");
myfile = myfile + ".xlsx";
myfile = MyPathEx.saveFile(mypostfile, Server, @"/ImportFile/", myfile);//保存上载文件的内容,并返回上传的路径+文件名
ExamineeOp_1.SaveExcelToDB(myfile);

/// <summary>
/// 返回一个当有日期组成的文件名
/// </summary>
/// <param name="myPerFix">可能要加的文件名前缀</param>
/// <returns></returns>
public static string myfileName(string myPerFix = "")
{
string mys = DateTime.Now.ToString("yyyyMMddHHmmss");
return myPerFix + mys;
}

2、读取Excel文件

/// <summary>
/// 导入设置好的考生信息Excel数据至数据库
/// </summary>
/// <param name="excelfile">本地Excel数据文件</param>
/// <param name="mysheet"></param>
public static void SaveExcelToDB(string excelfile, string mysheet = "sheet1")
{
//  string myfile = MyPathEx.myfileName(@"/ImportFile/") +excelfile;
var excelv = new ExcelQueryFactory(excelfile);
IEnumerable<string> Mysh = excelv.GetWorksheetNames();
//下载 AccessDatabaseEngine
//http://www.microsoft.com/zh-cn/download/details.aspx?id=13255

var result = (from c in excelv.Worksheet<ExamineeC_1_Dto>(Mysh.First<string>()) select c).ToList();
DalFactory.GetManager().GetProvider<IExaminee_1_Dal>(mydal_link).ExcelImportSave(result);
}

public class ExamineeC_1_Dto
{
public int 报名序号 { get; set; }
public string 姓名 { get; set; }
public string 身份证号 { get; set; }
public string 报考单位 { get; set; }
public string 报考岗位 { get; set; }
public string 报考专业 { get; set; }
public string 最高学历 { get; set; }

public string 报考职位 { get; set; }
public string 准考证号 { get; set; }
public string 考试科目A { get; set; }
public string 考试地点A { get; set; }
public string 考试日期A { get; set; }
public string 考试时间A { get; set; }
public string 考场号A { get; set; }
public string 座位号A { get; set; }

public string 考试科目B { get; set; }
public string 考试地点B { get; set; }
public string 考试日期B { get; set; }
public string 考试时间B { get; set; }
public string 考场号B { get; set; }
public string 座位号B { get; set; }

}

3、更新数据库

public void ExcelImportSave(List<ExamineeC_1_Dto> myexcel)
{
using (var ctx = new PersonnelExamEntities())
{
var updatas = ctx.Ex_Examinee.ToList();

foreach (var item in updatas)
{
var impd = myexcel.Where(o => o.报名序号 == item.ExamineeID).FirstOrDefault();
if (impd != null)
{
item.ExamineeCode = impd.准考证号;
item.Item_6 = impd.考试科目A;
item.ExamAddress = impd.考试地点A;
item.ExamDate = impd.考试日期A;
item.ExamTime = impd.考试时间A;
item.ExamPost = impd.考场号A;
item.ExamPostNumber = impd.座位号A;
item.Item_8 = impd.考试科目B;
item.ExamAddress1 = impd.考试地点B;
item.ExamDate1 = impd.考试日期B;
item.ExamTime1 = impd.考试时间B;
item.ExamPost1 = impd.考场号B;
item.ExamPostNumber1 = impd.座位号B;
}
}

ctx.SaveChanges();
}
}

方法二：Excel.Application

<table cellpadding="1" cellspacing="1" border="1" style="width: 50%; text-align: center">
<tr>
<td>
选择文件
</td>
<td style="padding-left: 10px; text-align: left">
<input id="excelCB" type="file" runat="server" style="cursor: hand" />
</td>
</tr>
<tr>
<td>
数据来源
</td>
<td style="padding-left: 10px; text-align: left">
<asp:RadioButtonList ID="radioLX" runat="server">
<asp:ListItem Text="湖北银行"  Value="0"></asp:ListItem>
<asp:ListItem Text="银联" Value="1" Selected="True"></asp:ListItem>
<asp:ListItem Text="手机" Value="2"></asp:ListItem>
</asp:RadioButtonList>
</td>
</tr>
<tr>
<td>
账单日期
</td>
<td style="padding-left: 10px; text-align: left">
<input id="txtTime" type="text" style="width: 115px" onclick="WdatePicker({startDate:'%y-%M-01',dateFmt:'yyyy-MM-dd',alwaysUseStartDate:true})" />
<%-- <asp:TextBox ID="dd" runat="server"></asp:TextBox>--%>
</td>
</tr>
<tr>
<td colspan="2">
<asp:Button ID="btnSubmit" runat="server" Text="提交" onclick="btnSubmit_Click" />
</td>
</tr>
</table>

protected void BindUnionPay()
{
GC.Collect();
string strSavePath, strSQL, strFileName, strFileExt;
string A1, A2, A3, A4, A5, A6, A7, A8;

strSavePath = Request.ServerVariables[3] + "Uploads/";//上传文件保存的物理文件夹
strFileName = Path.GetFileName(excelCB.PostedFile.FileName);//上传文件文件名
strFileExt = Path.GetExtension(strFileName);//上传文件扩展名
int intRow = 2;//Excel开始读取的行数
if (strFileExt.ToLower() == ".xls")//如果是Excel
{
strSavePath = strSavePath + "银联" + DateTime.Now.ToShortDateString() + ".xls";

Excel.Application excelApp = new Excel.Application();//申明Excel应用程序
Excel.Workbook excelWorkBook;//申明Excel工作簿
Excel.Worksheet excelWorkSheet;//申明工作表

strSQL = "truncate table tbl_UnionPay";//清空sql数据库中的tbl_UnionPay表
object[] obj = {};
SqlHelper.ExecuteNonQuery(strSQL, obj);

try
{
if (File.Exists(strSavePath))//如果文件已经上传，删除文件
{
FileInfo fi = new FileInfo(strSavePath);
if (fi.Attributes.ToString().IndexOf("ReadOnly") != -1)//判断文件是否只读，若只读，则去掉只读属性
fi.Attributes = FileAttributes.Normal;
File.Delete(strSavePath);
}

excelCB.PostedFile.SaveAs(strSavePath);//上传文件
excelWorkBook = excelApp.Workbooks.Open(@strSavePath, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value);//打开Excel
excelWorkSheet = (Excel.Worksheet)excelWorkBook.Worksheets[1];//返回第1个工作表

//循环读取数据
while (Convert.ToString(excelWorkSheet.get_Range("A" + intRow, Missing.Value).Value) != "" && Convert.ToString(excelWorkSheet.get_Range("A" + intRow, Missing.Value).Value) != null)
{

A1 = Convert.ToString(excelWorkSheet.get_Range("A" + intRow, Missing.Value).Value);
A2 = Convert.ToString(excelWorkSheet.get_Range("B" + intRow, Missing.Value).Value);
A3 = Convert.ToString(excelWorkSheet.get_Range("C" + intRow, Missing.Value).Value);
A4 = Convert.ToString(excelWorkSheet.get_Range("D" + intRow, Missing.Value).Value);
A5 = Convert.ToString(excelWorkSheet.get_Range("E" + intRow, Missing.Value).Value);
A6 = Convert.ToString(excelWorkSheet.get_Range("F" + intRow, Missing.Value).Value);
A7 = Convert.ToString(excelWorkSheet.get_Range("G" + intRow, Missing.Value).Value);
A8 = Convert.ToString(excelWorkSheet.get_Range("H" + intRow, Missing.Value).Value);

//插入数据库中
strSQL = "insert into tbl_UnionPay(fld_pid, fld_shh, fld_orderNumber, fld_amount, fld_tradeTime, fld_clearDate, fld_tradeCode, fld_responseCode)";
strSQL += "values('" + A1 + "','" + A2 + "','" + A3 + "','" + A4 + "','" + A5 + "','" + A6 + "','" + A7 + "','" + A8 + "')";
SqlHelper.ExecuteNonQuery(strSQL, obj);
intRow++;
}

Response.Write("<script language='javascript'>alert('导入数据表成功');</script>");
}
catch (Exception ex)
{
Response.Write(ex.Message.ToString());
if (excelApp != null)
{
excelApp.DisplayAlerts = false;
excelApp.Workbooks.Close();
excelApp.Quit();
KillProcess("EXCEL.EXE");
GC.Collect();
Response.Write("导入错误");
return;
}
}
finally
{
if (excelApp != null)
{

excelApp.DisplayAlerts = false;
excelApp.Workbooks.Close();
excelApp.Quit();
KillProcess("EXCEL.EXE");
System.GC.Collect();

}

}

}
else
{
Response.Write("<script language='javascript'>alert('文件类型不正确！')</script>");
}
}

private void KillProcess(string processName)
{

System.Diagnostics.Process[] process = System.Diagnostics.Process.GetProcessesByName("Excel");
foreach (System.Diagnostics.Process p in process)
{
if (!string.IsNullOrEmpty(processName))
{
try
{
p.Kill();
}
catch { }
}
}

}