将Excel中数据导入到Access数据库中的方法

将Excel中数据导入到Access数据库中的方法

  Default.aspx

  

复制代码 代码如下:

  <%@ Page Language="C#" AutoEventWireup="true"  CodeFile="Default.aspx.cs" Inherits="_Default" %>

  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

  <html xmlns="http://www.w3.org/1999/xhtml">

  <head id="Head1" runat="server">

  <title>无标题页</title>

  <style type="text/css">

  .style1

  {

  height: 16px;

  }

  .style3

  {

  height: 23px;

  }

  </style>

  </head>

  <body>

  <form id="form1" runat="server">

  <div>

  </div>

  <table align="center" border="1" bordercolor="honeydew" cellpadding="0"

  cellspacing="0">

  <tr>

  <td style="FONT-SIZE: 9pt; COLOR: #ff0000; BACKGROUND-COLOR: #ff9933; TEXT-ALIGN: center"

  class="style1">

  </td>

  <td colspan="2"

  style="FONT-SIZE: 9pt; COLOR: #ffffff; HEIGHT: 16px; BACKGROUND-COLOR: #ff9933; TEXT-ALIGN: center">

  将Excel数据写入Access数据库中</td>

  </tr>

  <tr>

  <td style="BACKGROUND-COLOR: #ffffcc; TEXT-ALIGN: center">

  </td>

  <td style="BACKGROUND-COLOR: #ffffcc; TEXT-ALIGN: center">

  <iframe id="I1" name="I1" scrolling="yes" src="学生成绩.xls"

  style="WIDTH: 407px; HEIGHT: 280px"></iframe>

  </td>

  <td style="WIDTH: 190px; BACKGROUND-COLOR: #ffffcc; TEXT-ALIGN: center">

  <asp:GridView ID="GridView1" runat="server" CellPadding="4" Font-Size="9pt"

  ForeColor="#333333" GridLines="None" Width="228px">

  <FooterStyle BackColor="#990000" Font-Bold="True" ForeColor="White" />

  <RowStyle BackColor="#FFFBD6" ForeColor="#333333" />

  <SelectedRowStyle BackColor="#FFCC66" Font-Bold="True" ForeColor="Navy" />

  <PagerStyle BackColor="#FFCC66" ForeColor="#333333" HorizontalAlign="Center" />

  <HeaderStyle BackColor="#990000" Font-Bold="True" ForeColor="White" />

  <AlternatingRowStyle BackColor="White" />

  </asp:GridView>

  </td>

  </tr>

  <tr>

  <td style="BACKGROUND-COLOR: #ff9900; TEXT-ALIGN: center" class="style3">

  </td>

  <td style="HEIGHT: 23px; BACKGROUND-COLOR: #ff9900; TEXT-ALIGN: center"

  valign="top">

  <asp:Button ID="Button3" runat="server" Font-Size="9pt" onclick="Button1_Click"

  Text="Excel数据写入Access数据库中" />

  <asp:Label ID="Label1" runat="server" Text="Label" Visible="False"

  style="font-size: x-small"></asp:Label>

  </td>

  <td style="WIDTH: 190px; HEIGHT: 23px; BACKGROUND-COLOR: #ff9900; TEXT-ALIGN: center">

  <asp:Button ID="Button2" runat="server" Font-Size="9pt" onclick="Button2_Click"

  Text="数据库中显示Excel数据" />

  </td>

  </tr>

  <tr>

  <td>

  </td>

  </tr>

  </table>

  </form>

  </body>

  </html>

  Default.aspx.cs

  

复制代码 代码如下:

  using System;

  using System.Configuration;

  using System.Data;

  using System.Linq;

  using System.Web;

  using System.Web.Security;

  using System.Web.UI;

  using System.Web.UI.HtmlControls;

  using System.Web.UI.WebControls;

  using System.Web.UI.WebControls.WebParts;

  using System.Xml.Linq;

  using System.Data.OleDb;

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

  {

  protected void Page_Load(object sender, EventArgs e)

  {

  }

  public OleDbConnection CreateCon()

  {

  string strconn = "Provider=Microsoft.Jet.OLEDB.4.0;Data source=" + Server.MapPath("UserScore.mdb") + ";User Id=admin;Password=;";

  OleDbConnection odbc = new OleDbConnection(strconn);

  return odbc;

  }

  protected void Button1_Click(object sender, EventArgs e)

  {

  //定义Excel列表

  string StyleSheet = "Sheet1";

  //调用自定义LoadData方法,将Excel文件中数据读到ASPNET页面中

  LoadData(StyleSheet);

  //定义查询的SQL语句

  string sql = "select ID,用户姓名,试卷,成绩,考试时间 from Score";

  //创建Oledb数据库连接

  OleDbConnection con = CreateCon();

  con.Open();//打开数据库连接

  OleDbCommand com = new OleDbCommand(sql, con);

  //开始事务

  OleDbTransaction tran = con.BeginTransaction();

  com.Transaction = tran;

  //创建适配器

  OleDbDataAdapter da = new OleDbDataAdapter(com);

  OleDbCommandBuilder cb = new OleDbCommandBuilder(da);

  //创建DataSet数据集

  DataSet ds = new DataSet();

  //填充数据集

  da.Fill(ds);

  int curIndex = 0;

  if (ds.Tables[0].Rows.Count > 0)

  {

  curIndex = Convert.ToInt32(ds.Tables[0].Rows[0][0]);

  }

  //创建一个内存表

  DataTable tb = this.getExcelDate();

  string selsql = "";

  for (int i = 0; i < tb.Rows.Count; i++)

  {

  string UserName = tb.Rows[i][0].ToString();

  selsql = "select count(*) from Score where 用户姓名='" + UserName + "'";

  }

  //判断Excel文件中是否已经导入到Access数据库中

  if (ExScalar(selsql) > 0)

  {

  Label1.Visible = true;

  Label1.Text = "<script language=javascript>alert('该Excle中的数据已经导入数据库中!');location='Default.aspx';</script>";

  }

  else

  {

  //循环读取Excel文件中数据,并添加到Access事先创建好的数据库表中

  for (int i = 0; i < tb.Rows.Count; i++)

  {

  DataRow dr = ds.Tables[0].NewRow();

  dr[0] = ++curIndex;

  dr[1] = tb.Rows[i][0];

  dr[2] = tb.Rows[i][1];

  dr[3] = tb.Rows[i][2];

  dr[4] = tb.Rows[i][3];

  ds.Tables[0].Rows.Add(dr);

  }

  try

  {

  da.Update(ds);//执行插入操作

  tran.Commit();//事务提交

  Label1.Visible = true;

  Label1.Text = "<script language=javascript>alert('数据导入成功!');location='Default.aspx';</script>";

  }

  catch

  {

  tran.Rollback();//事务回滚

  Label1.Visible = true;

  Label1.Text = "<script language=javascript>alert('数据导入失败!');location='Default.aspx';</script>";

  }

  finally

  {

  con.Close();//关闭数据库连接

  }

  }

  }

  protected void Button2_Click(object sender, EventArgs e)

  {

  string sqlstr = "select * from Score";

  OleDbConnection conn = CreateCon();

  conn.Open();

  OleDbCommand mycom = new OleDbCommand(sqlstr, conn);

  OleDbDataReader dr = mycom.ExecuteReader();

  dr.Read();

  if (dr.HasRows)

  {

  GetDataSet(sqlstr);

  }

  else

  {

  Label1.Visible = true;

  Label1.Text = "<script language=javascript>alert('数据库中没有数据信息,请先导入再查询!');location='Default.aspx';</script>";

  }

  dr.Close();

  conn.Close();

  }

  public DataSet GetDataSet(string sqlstr)

  {

  OleDbConnection conn = CreateCon();

  OleDbDataAdapter myda = new OleDbDataAdapter(sqlstr, conn);

  DataSet ds = new DataSet();

  myda.Fill(ds);

  GridView1.DataSource = ds;

  GridView1.DataBind();

  return ds;

  }

  public DataTable getExcelDate()

  {

  string strExcelFileName = Server.MapPath("学生成绩.xls");

  string strcon = "Provider=Microsoft.Jet.OLEDB.4.0;" + "Data Source=" + strExcelFileName + ";" + "Extended Properties='Excel 8.0;HDR=YES;IMEX=1';";

  string sql = "select * from [Sheet1$]";

  OleDbDataAdapter da = new OleDbDataAdapter(sql, strcon);

  DataSet ds = new DataSet();

  da.Fill(ds);

  return ds.Tables[0];

  }

  public void LoadData(string StyleSheet)

  {

  //定义数据库连接字符串 m

  string strCon = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source =" + Server.MapPath("学生成绩.xls") + ";Extended Properties=Excel 8.0";

  //创建数据库连接

  OleDbConnection myConn = new OleDbConnection(strCon);

  //打开数据链接,得到一个数据集

  myConn.Open();

  //创建DataSet对象

  DataSet myDataSet = new DataSet();

  //定义查询的SQL语句

  string StrSql = "select   *   from   [" + StyleSheet + "$]";

  //创建数据库适配器

  OleDbDataAdapter myCommand = new OleDbDataAdapter(StrSql, myConn);

  //填充数据集中的数据

  myCommand.Fill(myDataSet, "[" + StyleSheet + "$]");

  //释放占有的资源

  myCommand.Dispose();

  //关闭数据库连接

  myConn.Close();

  }

  public int ExScalar(string sql)

  {

  OleDbConnection conn = CreateCon();

  conn.Open();

  OleDbCommand com = new OleDbCommand(sql, conn);

  return Convert.ToInt32(com.ExecuteScalar());

  conn.Close();

  }

  }