C#(3)-------excel上传到数据库
.aspx
前台代码：
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="test3.aspx.cs" Inherits="WEB.AjaxTools.test3" %>
fileupload
后台代码：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.OleDb;
using System.Configuration;
using System.Data.SqlClient;
namespace WEB.AjaxTools
{
public partial class test3 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{ }
protected void Button1_click(object sender, EventArgs e)
{
SqlConnection conn = new SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings["LYConnectionString"].ConnectionString); //链接数据库
conn.Open();
try
{
string fileurl = typename(FileUpload1);//调用typename方法取得excel文件路径
DataSet ds = new DataSet();//取得数据集
ds = xsldata(fileurl);
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
for (int i = 0; i < ds.Tables[0].Rows.Count; i++)
{
string datePath = DateTime.Now.ToString("yyyyMMddHHmmssfff");
string Id = datePath + ds.Tables[0].Rows[i][0].ToString();
string ytime = ds.Tables[0].Rows[i][1].ToString();
string yname = ds.Tables[0].Rows[i][2].ToString();
string ytele = ds.Tables[0].Rows[i][3].ToString();
string yall = ds.Tables[0].Rows[i][4].ToString();
string yfname = ds.Tables[0].Rows[i][5].ToString();
string yfy = ds.Tables[0].Rows[i][6].ToString();
if (ytime == "")
{
for (int j = i-1;j > -1; j--)
{
String t1 = ds.Tables[0].Rows[j][1].ToString();
if(t1 != "") { ytime = t1; break; }
}
}
if (yname == "")
{
for (int j = i - 1; j > -1; j--)
{
String t1 = ds.Tables[0].Rows[j][2].ToString();
if (t1 != "") { yname = t1; break; }
}
}
if (ytele == "")
{
for (int j = i - 1; j > -1; j--)
{
String t1 = ds.Tables[0].Rows[j][3].ToString();
if (t1 != "") { ytele = t1; break; }
}
}
if (yall == "")
{
for (int j = i - 1; j > -1; j--)
{
String t1 = ds.Tables[0].Rows[j][4].ToString();
if (t1 != "") { yall = t1; break; }
}
}
Response.Write(Id);
Response.Write(ytime);
Response.Write(yname);
Response.Write(ytele);
Response.Write(yall);
Response.Write(yfname);
Response.Write(yfy);
if (Id != "")
{
SqlCommand selectcmd = new SqlCommand("select count(*) as ynamenu from LiuOrdmr where Id='" + Id + "'", conn);
int count = Convert.ToInt32(selectcmd.ExecuteScalar());
if (count > 0)
{
SqlCommand updatecmd = new SqlCommand("update LiuOrdmr set ytime='" + ytime + "',yname='" + yname + "',ytele='" + ytele + "',yall='"
+ yall + "',yfname='" + yfname + "', yfy ='" + yfy + "' where Id='" + Id + "'", conn);
updatecmd.ExecuteNonQuery();
updatecount++;
}
else
{
String sql1 = "insert into LiuOrdmr values('" + Id + "','" + ytime + "','" + yname + "','" + ytele + "','" + yall + "','" + yfname + "','" + yfy + "')";
SqlCommand insertcmd = new SqlCommand(sql1, conn);
insertcmd.ExecuteNonQuery();
insertcount++;
}
}
else
{
errorcount++;
}
}
Response.Write("");
}
finally
{
conn.Close();
}
}
private String typename(FileUpload fileloads)
{
string fullfilename = fileloads.PostedFile.FileName;
string filename = fullfilename.Substring(fullfilename.LastIndexOf("\\") + 1);
string type = fullfilename.Substring(fullfilename.LastIndexOf(".") + 1);
string murl = "";
if (type == "xls")
{
fileloads.PostedFile.SaveAs(Server.MapPath("excel") + "\\" + filename);
murl = (Server.MapPath("excel") + "\\" + filename).ToString();
}
else
{
Response.Write("");
}
return murl;
}
// 数据库导入数据集dataset
private DataSet xsldata(string filepath)
{
string strCon = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + filepath + ";Extended Properties='Excel 8.0;IMEX=1'";
//如果是导入excel2013版本，连接字符串则应该变成
// string strCon = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + filepath + ";Extended Properties='Excel 12.0;IMEX=1'";
System.Data.OleDb.OleDbConnection Conn = new System.Data.OleDb.OleDbConnection(strCon);
string strCom = "SELECT * FROM [Sheet1$]";
Conn.Open();
System.Data.OleDb.OleDbDataAdapter myCommand = new System.Data.OleDb.OleDbDataAdapter(strCom, Conn);
DataSet ds = new DataSet();
myCommand.Fill(ds, "[Sheet1$]");
Conn.Close();
return ds;
}
}
}
后台连接数据库的部分需要在app.config中配置一下：
from： asp.net 中excel 导入数据库
在.ashx与.html编写的代码
前台代码：
后台代码：
using System.Web.Script.Serialization;
using System.Data;
using DBUtility;
using System.Collections.Generic;
using System.Data.SqlClient;
using System;
using System.Web;
using System.IO;
using System.Windows.Forms;
using System.Web.UI.WebControls;
using System.Collections.Specialized;
namespace WEB.AjaxTools
{
public class test4 : AjaxTools.AjaxService
{
public void jiayou()
{
HttpFileCollection file1 = _context.Request.Files;
SqlConnection conn = new SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings["LYConnectionString"].ConnectionString); //链接数据库
conn.Open();
try
{
string fileurl = typename(file1);//调用typename方法取得excel文件路径
if (fileurl == "")
{
ContextResponse(false, "导入文件格式不对!请导入xls格式文件。");
}
else
{
DataSet ds = new DataSet();//取得数据集
ds = xsldata(fileurl);
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
for (int i = 0; i < ds.Tables[0].Rows.Count; i++)
{
string Id = DateTime.Now.ToString("yyyyMMddHHmmssfff");
string pid = ds.Tables[0].Rows[i][0].ToString();
string ytime = ds.Tables[0].Rows[i][1].ToString();
string yname = ds.Tables[0].Rows[i][2].ToString();
string ytele = ds.Tables[0].Rows[i][3].ToString();
string yall = ds.Tables[0].Rows[i][4].ToString();
string yfname = ds.Tables[0].Rows[i][5].ToString();
string yfy = ds.Tables[0].Rows[i][6].ToString();
if (pid == "")
{
for (int j = i - 1; j > -1; j--)
{
String t1 = ds.Tables[0].Rows[j][0].ToString();
if (t1 != "") { pid = t1; break; }
}
}
if (ytime == "")
{
for (int j = i - 1; j > -1; j--)
{
String t1 = ds.Tables[0].Rows[j][1].ToString();
if (t1 != "") { ytime = t1; break; }
}
}
if (yname == "")
{
for (int j = i - 1; j > -1; j--)
{
String t1 = ds.Tables[0].Rows[j][2].ToString();
if (t1 != "") { yname = t1; break; }
}
}
if (ytele == "")
{
for (int j = i - 1; j > -1; j--)
{
String t1 = ds.Tables[0].Rows[j][3].ToString();
if (t1 != "") { ytele = t1; break; }
}
}
if (yall == "")
{
for (int j = i - 1; j > -1; j--)
{
String t1 = ds.Tables[0].Rows[j][4].ToString();
if (t1 != "") { yall = t1; break; }
}
}
if (Id != "")
{
SqlCommand selectcmd = new SqlCommand("select count(*) as ynamenu from LiuOrdmr where Id='" + Id + "'", conn);
int count = Convert.ToInt32(selectcmd.ExecuteScalar());
if (count > 0)
{
SqlCommand updatecmd = new SqlCommand("update LiuOrdmr set pid='" + pid + "',ytime='" + ytime + "',yname='" + yname + "',ytele='" + ytele + "',yall='"
+ yall + "',yfname='" + yfname + "', yfy ='" + yfy + "' where Id='" + Id + "'", conn);
updatecmd.ExecuteNonQuery();
updatecount++;
}
else
{
String sql1 = "insert into LiuOrdmr values('" + Id + "','" + pid + "','" + ytime + "','" + yname + "','" + ytele + "','" + yall + "','" + yfname + "','" + yfy + "')";
SqlCommand insertcmd = new SqlCommand(sql1, conn);
insertcmd.ExecuteNonQuery();
insertcount++;
}
}
else
{
errorcount++;
}
}
ContextResponse(true, insertcount + "条数据导入成功！" + updatecount + "条数据更新成功！" + errorcount + "条数据部分信息为空没有导入！");
}
}
finally
{
conn.Close();
}
}
private String typename(HttpFileCollection fileloads)
{
string fullfilename = Path.GetFileName(fileloads[0].FileName);
string filename = fullfilename.Substring(fullfilename.LastIndexOf("\\") + 1);
string type = fullfilename.Substring(fullfilename.LastIndexOf(".") + 1);
string murl = "";
if (type.Equals("xls"))
{
fileloads[0].SaveAs(System.Web.HttpContext.Current.Server.MapPath("excel") + "\\" + filename);
murl = (System.Web.HttpContext.Current.Server.MapPath("excel") + "\\" + filename).ToString();
}
return murl;
}
private DataSet xsldata(string filepath)
{
string strCon;
strCon = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + filepath + ";Extended Properties='Excel 8.0;IMEX=1'";
//如果是导入excel2013版本，连接字符串则应该变成
// strCon = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + filepath + ";Extended Properties='Excel 12.0;IMEX=1'";
System.Data.OleDb.OleDbConnection Conn = new System.Data.OleDb.OleDbConnection(strCon);
Conn.Open();
//string strCom = "SELECT * FROM [Sheet1$]";
//获取sheet名
DataTable table = Conn.GetOleDbSchemaTable(System.Data.OleDb.OleDbSchemaGuid.Tables, null);
String tableName = table.Rows[0]["Table_Name"].ToString();
string strCom = "select * from " + "[" + tableName + "]";
System.Data.OleDb.OleDbDataAdapter myCommand = new System.Data.OleDb.OleDbDataAdapter(strCom, Conn);
DataSet ds = new DataSet();
myCommand.Fill(ds, "[" + tableName + "]");
Conn.Close();
return ds;
}
}
}
这个里面有些方法被写在AjaxTools.AjaxService中，所以直接使用有的地方会报错。