在WEB项目开发过程中有时会碰到批量插入数据到数或者是将EXCEL文件据入到数据库中.为了方便实现可以先将EXCEL导入到GRIDVIEW中然后一次批量插入.实现代码如下:

前台代码

<asp:GridView ID="dgBom" runat="server" AutoGenerateColumns="false" CellPadding="1" CellSpacing="2"> <HeaderStyle BackColor="#ededed" /> <Columns> <asp:TemplateField HeaderText="学号"> <ItemTemplate> <asp:TextBox ID="studentnumber" runat="server" Text='<%#Eval("studentnumber") %>' ></asp:TextBox> </ItemTemplate> </asp:TemplateField> <asp:TemplateField HeaderText="学生姓名"> <ItemTemplate> <asp:TextBox ID="studentname" runat="server" Text='<%#Eval("studentname") %>'></asp:TextBox> </ItemTemplate> </asp:TemplateField> </Columns> </asp:GridView> <asp:FileUpload ID="FileUpload1" runat="server" Font-Italic="False" /> <asp:Button ID="btn2" runat="server" Text="导入数据" /> <asp:Button ID="btninsert" runat="server" Text="插入到数据库中"/>

后台代码:

//首先在命名空间中加入以下两行 using System.Data.SqlClient; using System.Data.OleDb; protected void btn2_Click(object sender, EventArgs e) { string filepath = FileUpload1.PostedFile.FileName; ReadExcel(filepath, dgBom); } public void ReadExcel(string sExcelFile, GridView dgBom) { DataTable ExcelTable; DataSet ds = new DataSet(); //Excel的连接 OleDbConnection objConn = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + sExcelFile + ";" + "Extended Properties=Excel 8.0;"); objConn.Open(); DataTable schemaTable = objConn.GetOleDbSchemaTable(System.Data.OleDb.OleDbSchemaGuid.Tables, null); string tableName = schemaTable.Rows[0][2].ToString().Trim();//获取 Excel 的表名，默认值是sheet1 string strSql = "select * from [" + tableName + "]"; OleDbCommand objCmd = new OleDbCommand(strSql, objConn); OleDbDataAdapter myData = new OleDbDataAdapter(strSql, objConn); myData.Fill(ds, tableName);//填充数据 dgBom.DataSource =ds; dgBom.DataBind(); objConn.Close(); ExcelTable = ds.Tables[tableName]; int iColums = ExcelTable.Columns.Count;//列数 int iRows = ExcelTable.Rows.Count;//行数 //定义二维数组存储 Excel 表中读取的数据 string[,] storedata = new string[iRows, iColums]; for(int i=0;i<ExcelTable.Rows.Count;i++) for (int j = 0; j < ExcelTable.Columns.Count; j++) { //将Excel表中的数据存储到数组 storedata[i, j] = ExcelTable.Rows[i][j].ToString(); } int excelBom = 0;//记录表中有用信息的行数，有用信息是指除去表的标题和表的栏目，本例中表的用用信息是从第三行开始 //确定有用的行数 for (int k = 2; k < ExcelTable.Rows.Count; k++) if (storedata[k, 1] != "") excelBom++; if (excelBom == 0) { Response.Write("<script language=javascript>alert('您导入的表格不合格式！')</script>"); } else { //LoadDataToDataBase(storedata，excelBom)//该函数主要负责将 storedata 中有用的数据写入到数据库中，在此不是问题的关键省略 } } protected void btninsert_Click(object sender, EventArgs e) { foreach (GridViewRow gv in dgBom.Rows) { //我的连接字符串是写在WEB.CONFIG中的. string con = System.Configuration.ConfigurationManager.AppSettings["ConnectionString1"].ToString(); SqlConnection conn = new SqlConnection(con); SqlCommand cmd = conn.CreateCommand(); cmd.CommandType = CommandType.Text; cmd.CommandText = "insert into student (studentnumber,studentname) values(@studentnumber,@studentname)"; cmd.Parameters.Add("@studentnumber", SqlDbType.NVarChar, 20); cmd.Parameters.Add("@studentname", SqlDbType.NVarChar, 10); cmd.Parameters["@studentname"].Value = ((TextBox)gv.FindControl("studentname")).Text; cmd.Parameters["@studentnumber"].Value = ((TextBox)gv.FindControl("studentnumber")).Text; try { conn.Open(); cmd.ExecuteNonQuery(); conn.Close(); } finally { if (conn != null) conn.Dispose(); } } }

以上内容就是本文的全部叙述，希望对大家学习C#.NET中如何批量插入大量数据到数据库中有所帮助。