代码语言：javascript复制
/**
*
*在本章节中主要讲解的是如何使用OLEDB将Excel中的数据导入到数据库中
*
*/
using System;
using System.Data;
using System.Data.OleDb;
using System.Data.SqlClient;
using System.IO;
using System.Text;
using System.Web;
using System.Web.UI;
private DataTable xsldata()
{
if(fuload.FileName == "")
{
lbmsg.Text = "请选择文件";
return null;
}
string fileExtenSion;
fileExtenSion = Path.GetExtension(fuload.FileName);
if(fileExtenSion.ToLower() != ".xls" && fileExtenSion.ToLower() != ".xlsx")
{
lbmsg.Text = "上传的文件格式不正确";
return null;
}
try
{
string FileName = "App_Data/" Path.GetFileName(fuload.FileName);
if(File.Exists(Server.MapPath(FileName)))
{
File.Delete(Server.MapPath(FileName));
}
fuload.SaveAs(Server.MapPath(FileName));
//HDR=Yes，这代表第一行是标题，不做为数据使用 ，如果用HDR=NO，则表示第一行不是标题，做为数据来使用。系统默认的是YES
string connstr2003 = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" Server.MapPath(FileName) ";Extended Properties='Excel 8.0;HDR=Yes;IMEX=1;'";
string connstr2007 = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" Server.MapPath(FileName) ";Extended Properties="Excel 12.0;HDR=YES"";
OleDbConnection conn;
if(fileExtenSion.ToLower() == ".xls")
{
conn = new OleDbConnection(connstr2003);
}
else
{
conn = new OleDbConnection(connstr2007);
}
conn.Open();
string sql = "select * from [Sheet1$]";
OleDbCommand cmd = new OleDbCommand(sql, conn);
DataTable dt = new DataTable();
OleDbDataReader sdr = cmd.ExecuteReader();
dt.Load(sdr);
sdr.Close();
conn.Close();
//删除服务器里上传的文件
if(File.Exists(Server.MapPath(FileName)))
{
File.Delete(Server.MapPath(FileName));
}
return dt;
}
catch(Exception e)
{
return null;
}
}
protected void Btn_Export_Excel_To_DB_Click(object sender, EventArgs e)
{
try{
DataTable dt = xsldata();
//dataGridView2.DataSource = ds.Tables[0];
int errorcount = 0;//记录错误信息条数
int insertcount = 0;//记录插入成功条数
int updatecount = 0;//记录更新信息条数
string strcon = "server=localhost;database=database1;uid=sa;pwd=sa";
SqlConnection conn = new SqlConnection(strcon);//链接数据库
conn.Open();
for(int i = 0; i < dt.Rows.Count; i )
{
string Name = dt.Rows[i][0].ToString();//dt.Rows[i]["Name"].ToString(); "Name"即为Excel中Name列的表头
string Sex = dt.Rows[i][1].ToString();
int Age = Convert.ToInt32(dt.Rows[i][2].ToString());
string Address = dt.Rows[i][3].ToString();
if(Name != "" && Sex != "" && Age != 0 && Address != "")
{
SqlCommand selectcmd = new SqlCommand("select count(*) from users where Name='" Name "' and Sex='" Sex "' and Age='" Age "' and Address=" Address, conn);
int count = Convert.ToInt32(selectcmd.ExecuteScalar());
if(count > 0)
{
updatecount ;
}
else
{
SqlCommand insertcmd = new SqlCommand("insert into users(Name,Sex,Age,Address) values('" Name "','" Sex "'," Age ",'" Address "')", conn);
insertcmd.ExecuteNonQuery();
insertcount ;
}
}
else
{
errorcount ;
}
}
Response.Write((insertcount "条数据导入成功！" updatecount "条数据重复！" errorcount "条数据部分信息为空没有导入！"));
}
catch(Exception ex)
{
}
}
