asp.net中Excel导入，导出

public partial class _Default : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{

}

//导出Excel文件

public void OutputExcel_Click(object sender, EventArgs e)

{

string sql = "SELECT * FROM Props_Type";

DataSet ds = new DataSet();

SqlConnection con = DBHelper.Connection;

SqlDataAdapter sda = new SqlDataAdapter(sql, con);

sda.Fill(ds, "Props_Type");

StringBuilder sb = new StringBuilder();

//在Excel文件里面显示的[对应数据库里面的字段]

sb.AppendLine("道具类型ID:\t"+"道具类型名称:\t");

foreach (DataRow dr in ds.Tables[0].Rows )

{

sb.Append(dr.ItemArray[0].ToString() + "\t");

sb.Append(dr.ItemArray[1].ToString() + "\t\r\n");

}

HttpResponse hr = Page.Response;

hr.Write("以下是导出的文件内容：\r\n");

hr.ContentEncoding = Encoding.GetEncoding("GBK");

//filename="output.xls"我这里写死了的，就是Excel里面Sheet1名字

hr.AppendHeader("Content-Disposition","attachment;filename=output.xls");

//这里设置输出的类型

hr.ContentType = "application/ms-excel";

hr.Write(sb.ToString () );

hr.Flush();

hr.End();

}

//导入文件

protected void ImportExcel_Click(object sender, EventArgs e)

{

string filePath = "";

string getErrorMsg = "";

DataSet ds = new DataSet();

if (!fuFile.HasFile)

{

Response.Write("<script>alert('请选择你要导入的Excel文件');</script>");

return;

}

//获取文件的后缀名

string fileExt = System.IO.Path.GetExtension(fuFile.FileName);

if (fileExt != ".xls")

{

Response.Write("<script>alert('文件类型错误！');</script>");

return;

}

//获取绝对路径

filePath = fuFile.PostedFile.FileName;

//string conn = "Provider=Microsoft.Jet.OLEDB.4.0;Extended Properties=\"dBASE IV;HDR=Yes;IMEX=1\";Data Source = " + filePath + "";

string conn = "Provider=Microsoft.Jet.OLEDB.4.0;Extended Properties=\"Excel 8.0;HDR=Yes;IMEX=1\";Data Source=" + filePath;

OleDbConnection excelCon = new OleDbConnection(conn);

//output是Excel文件里面工作表名 默认为Sheet1,后面需要加上$符号

OleDbDataAdapter odda = new OleDbDataAdapter("SELECT * FROM [output$]",excelCon);

try

{

odda.Fill(ds, "Props_Type");

}

catch (Exception ex)

{

Response.Write(ex.Message);

Response.Write("<script>alert('"+ex.Message+"！')</script>");

}

finally

{

excelCon.Close();

excelCon.Dispose();

}

//将数据写到数据库里面

if (ds.Tables[0].Rows.Count != 0)

{

string sql = "";

SqlConnection con = DBHelper.Connection;

SqlCommand sqlCmd = con.CreateCommand();

SqlTransaction sqlTran = con.BeginTransaction();

sqlCmd.Transaction = sqlTran;

try

{

for (int i = 0; i < ds.Tables[0].Rows.Count; i++)

{

//道具类型名称为output工作表里面的字段

sql = "INSERT INTO Props_Type VALUES('" + ds.Tables[0].Rows[i]["道具类型名称"] + "')";

sqlCmd.CommandText = sql;

sqlCmd.ExecuteNonQuery();

}

sqlTran.Commit();

}

catch (Exception ex)

{

getErrorMsg = ex.Message;

Response.Write(ex.Message);

sqlTran.Rollback();

}

finally

{

con.Close();

con.Dispose();

}

if (getErrorMsg == "")

{

Response.Write("<script>alert('导入Excel文件成功！')</script>");

}

else { Response.Write("<script>alert('导入Excel文件失败！')</script>"); }

}

}

}