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protected void btnImport_Click(object sender, EventArgs e)
{
if (FileUpload1.HasFile == false)//HasFile用來檢查FileUpload是否有指定文件
{
Response.Write("<script>alert('請您選擇Excel文件')</script> ");
return;//當無文件時,返回
}
string IsXls = System.IO.Path.GetExtension(FileUpload1.FileName).ToString().ToLower();//System.IO.Path.GetExtension獲得文件的擴展名
if (IsXls != ".xls")
{
if(IsXls!=".xlsx")
{
Response.Write("<script>alert('只可以選擇Excel文件')</script>");
return;//當選擇的不是Excel文件時,返回
}
}
string filename = FileUpload1.FileName; //獲取Execle文件名 DateTime日期函數(shù)
string savePath = Server.MapPath(("upfiles\\") + filename);//Server.MapPath 獲得虛擬服務(wù)器相對路徑
FileUpload1.SaveAs(savePath); //SaveAs 將上傳的文件內(nèi)容保存在服務(wù)器上
DataSet ds = ExcelSqlConnection(savePath, filename,IsXls); //調(diào)用自定義方法
DataRow[] dr = ds.Tables[0].Select(); //定義一個DataRow數(shù)組
int rowsnum = ds.Tables[0].Rows.Count;
if (rowsnum == 0)
{
Response.Write("<script>alert('Excel表為空表,無數(shù)據(jù)!')</script>"); //當Excel表為空時,對用戶進行提示
}
else
{
for (int i = 0; i < dr.Length; i++)
{
//前面除了你需要在建立一個“upfiles”的文件夾外，其他的都不用管了，你只需要通過下面的方式獲取Excel的值，然后再將這些值用你的方式去插入到數(shù)據(jù)庫里面
string title = dr[i]["標題"].ToString();
string linkurl = dr[i]["鏈接地址"].ToString();
string categoryname = dr[i]["分類"].ToString();
//Response.Write("<script>alert('導(dǎo)入內(nèi)容:" + ex.Message + "')</script>");
}
Response.Write("<script>alert('Excle表導(dǎo)入成功!');</script>");
}
}
#region 連接Excel 讀取Excel數(shù)據(jù) 并返回DataSet數(shù)據(jù)集合
/// <summary>
/// 連接Excel 讀取Excel數(shù)據(jù) 并返回DataSet數(shù)據(jù)集合
/// </summary>
/// <param name="filepath">Excel服務(wù)器路徑</param>
/// <param name="tableName">Excel表名稱</param>
/// <returns></returns>
public static System.Data.DataSet ExcelSqlConnection(string filepath, string tableName,string IsXls)
{
string strCon = "";
if(IsXls==".xls")
{
strCon = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + filepath + ";Extended Properties='Excel 8.0;HDR=YES;IMEX=1'";
}
else
{
strCon = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + filepath + ";Extended Properties='Excel 12.0;HDR=YES;IMEX=1'";
}
OleDbConnection ExcelConn = new OleDbConnection(strCon);
try
{
string strCom = string.Format("SELECT * FROM [Sheet1$]");
ExcelConn.Open();
OleDbDataAdapter myCommand = new OleDbDataAdapter(strCom, ExcelConn);
DataSet ds = new DataSet();
myCommand.Fill(ds, "[" + tableName + "$]");
ExcelConn.Close();
return ds;
}
catch
{
ExcelConn.Close();
return null;
}
}
#endregio

strConn = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source='" + serverFilename + "';Extended Properties='Excel 12.0;HDR=YES'";

strConn = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source='" + serverFilename + "';Extended Properties='Excel 8.0;HDR=YES;'";