Import dữ liệu từ Excel vào SQL Server trong Asp.net

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(Đưa dữ liệu từ file Excel vào SQL Server trong Asp.net) – Thông thường trong phần mềm, để đưa dữ liệu vào bảng có 2 cách: nhập trực tiếp hoặc Import từ file. Với cách Import dữ liệu từ file sẽ giúp người nhập liệu tiết kiệm được rất nhiều thời gian cho việc nhập liệu mà lại tránh nhiều sai sót. Bài viết dưới đây, thủ thuật tin học sẽ giới thiệu với các bạn cách Import toàn bộ danh sách dữ liệu trong file Excel vào SQL Server.

Xem những Video hay dành cho thiếu nhi - Nghe trên Youtube

- B1: Tạo CSDL SQL Customers

- B2: Tạo Bảng Players có cấu trúc phía dưới trong CSDL SQL Server

STT	Tên trường	Kiểu trường	Ghi chú
1	ItemID	Int	Trường tự tăng
2	Name	nvarchar(35)
3	Midfield	nvarchar(50)
4	Dateofbirth	Datetime
5	Country	nvarchar(50)
6	Club	nvarchar(50)
7	Height	nvarchar(50)
8	Weight	nvarchar(50)
9	ImageURL	nvarchar(200)

- B3: Nhập dữ liệu cho bảng Players

- B4: Tạo stored procedure trong SQL Server

USE [Customers]

CREATE PROCEDURE [dbo].[Pro_Players_Add]

@Name nvarchar(40)

,@Midfield nvarchar(30)

,@Dateofbirth datetime

,@Country nvarchar(60)

,@Club nvarchar(15)

,@Height nvarchar(15)

,@Weight nvarchar(10)

,@ImageURL nvarchar(200)

INSERT INTO Players (

[Name]

,[Midfield]

,[Dateofbirth]

,[Country]

,[Club]

,[Height]

,[Weight]

,[ImageURL]

) VALUES (

@Name

,@Midfield

,@Dateofbirth

,@Country

,@Club

,@Height

,@Weight

,@ImageURL

)

select SCOPE_IDENTITY()

CREATE PROCEDURE [dbo].[Pro_Players_List]

@Keyword nvarchar(250)

declare @strSQL nvarchar(1000)

declare @strWhere nvarchar(500)

declare @strOrder nvarchar (50)

set @strSQL= 'Select * from Players'

set @strWhere =' Where 1=1 '

if @Keyword<>''

set @strWhere= @strWhere +' And (Name like N''%' +@Keyword+'%''

Or Midfield like N''%' +@Keyword+'%'' Or Country like N''%' +@Keyword+'%''

Or Club like N''%' +@Keyword+'%'')'

set @strOrder =' Order by Name'

set @strSQL=@strSQL+@strWhere+@strOrder

print @strSQL

exec sp_executesql @strSQL

Bạn có thể tải về bảng cơ sở dữ liệu SQL bằng cách nhấn vào liên kết tải về dưới đây

- B4: Tạo Project trong Microsoft Visual Studio 2010
Trong Visual Studio tạo 1 Class có tên: Utility và nhập đoạn Code phía dưới cho Class này.

Imports System.Data.SqlClient

Imports System.Data

Namespace ImportDataFromExcelToSQL

Public Class SqlDataProvider

#Region "Membres Prives"

Shared _IsError As Boolean = False

Private _connectionString As String

#End Region

#Region "Constructeurs"

Public Sub New()

Try

_connectionString = ConfigurationManager.ConnectionStrings("SiteSqlServer").ConnectionString

_IsError = False

Catch ex As Exception

_IsError = True

End Try

End Sub

#End Region

#Region "Proprietes"

Public ReadOnly Property ConnectionString() As String

Get

Return _connectionString

End Get

End Property

#End Region

#Region "Functions"

Public Function FillTable(ByVal ProcName As String, ByVal ParamArray Para() As ObjectPara) As DataTable

Try

Dim tb As New DataTable

Dim adap As New SqlDataAdapter(ProcName, _connectionString)

adap.SelectCommand.CommandType = CommandType.StoredProcedure

If Not Para Is Nothing Then

For Each p As ObjectPara In Para

adap.SelectCommand.Parameters.Add(New SqlParameter(p.Name, p.Value))

End If

adap.Fill(tb)

Return tb

Catch ex As Exception

Return Nothing

End Try

End Function

Public Function RunSQL(ByVal ProcName As String, ByVal ParamArray Para() As ObjectPara) As Object

Try

Dim _cnn As New SqlConnection(_connectionString)

_cnn.Open()

Dim cmd As New SqlCommand(ProcName, _cnn)

cmd.CommandType = CommandType.StoredProcedure

For Each p As ObjectPara In Para

cmd.Parameters.Add(New SqlParameter(p.Name, p.Value))

Return cmd.ExecuteScalar

Catch ex As Exception

Return Nothing

End Try

End Function

#End Region

End Class

Public Class ObjectPara

Dim _name As String

Dim _Value As Object

Sub New(ByVal Pname As String, ByVal PValue As Object)

_name = Pname

_Value = PValue

End Sub

Public Property Name() As String

Get

Return _name

End Get

Set(ByVal value As String)

_name = value

End Set

End Property

Public Property Value() As Object

Get

Return _Value

End Get

Set(ByVal value As Object)

_Value = value

End Set

End Property

End Class

Chú ý: Thuộc tính SiteSqlServer chính là chuỗi Connect với SQL Server trong file Web.Config

- B5: Tạo file Import. aspx, mở và nhập mã HTML

<%@ Page Title="Import Data from excel to SQL server in ASP.Net" Language="vb" MasterPageFile="~/Site.Master" AutoEventWireup="false" CodeBehind="Import.aspx.vb" Inherits="ImportDataFromExcelToSQL.Import" %>

<asp:Content ID="HeaderContent" runat="server" ContentPlaceHolderID="HeadContent">

</asp:Content>

<asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent">

<tr>

<td>

<asp:label id="lblHeader" runat="server" Text="IMPORT DATA"></asp:label>

</div>

<tr>

<asp:Label ID="plFileName" runat="server">File</asp:Label>

</td>

<td>

<asp:FileUpload ID="ImportFile" runat="server" CssClass="TextBox" /><br />

<asp:RequiredFieldValidator ID="rfvFileupload" ValidationGroup="validate" CssClass="NormalRed" runat="server" ErrorMessage="Select File Excel" ControlToValidate="ImportFile"></asp:RequiredFieldValidator>

</td>

</tr>

<tr>

<asp:label id="lblMessage" runat="server"></asp:label><br />

</td>

</tr>

</table>

</div>

<asp:LinkButton id="cmdImport" runat="server" CssClass="btn btn-small" ValidationGroup="validate" Causesvalidation="true">

</asp:LinkButton>

<asp:LinkButton id="cmdCancel" runat="server" CssClass="btn btn-small" Causesvalidation="false">

</asp:LinkButton>

</div>

</td>

</tr>

</table>

</asp:Content>

- B6: Viết Code cho file Import.aspx

'Visit http://thuthuatlaptrinh.blogspot.com for more ASP.NET Tutorials

Imports System.IO

Imports System.Data.OleDb

Namespace ImportDataFromExcelToSQL

Public Class Import

Inherits System.Web.UI.Page

#Region "Private Method"

Private Sub CreateFolder()

Dim FilePath As String = MapPath("~/Import")

If Not Directory.Exists(FilePath) Then

' if not, create it.

Directory.CreateDirectory(FilePath)

End If

End Sub

Protected Function UploadFile(ByVal file As FileUpload) As String

Dim fileName As String

Dim filePath As String

fileName = file.FileName.Substring(file.FileName.LastIndexOf("\\") + 1)

filePath = MapPath("~/Import/" + fileName)

file.SaveAs(filePath)

Return fileName

End Function

Protected Function ExcelConnection(ByVal FileName As String) As OleDbCommand

Dim xConnStr As String = "Provider=Microsoft.Jet.OLEDB.4.0;" & _

"Data Source=" & Server.MapPath("~/Import/" & FileName) & ";" & _

"Extended Properties=Excel 8.0;"

Dim objXConn As New OleDbConnection(xConnStr)

objXConn.Open()

Dim objCommand As New OleDbCommand("SELECT * FROM [Player$]", objXConn)

Return objCommand

End Function

Protected Function ReaderValue(ByVal MyReader As OleDbDataReader, ByVal iValue As Integer) As String

Dim val As Object = Convert.ToString(MyReader(iValue))

If Not IsDBNull(val) Then

Return val.ToString()

Else

Return Convert.ToString(0)

End If

End Function

Private Sub UpdateRecord(ByVal PlayerName As String, ByVal Midfield As String, ByVal Dateofbirth As Date, ByVal Country As String, _

ByVal Club As String, ByVal Height As String, ByVal Weight As String, ByVal ImageURL As String)

Dim objSQL As New SqlDataProvider

objSQL.RunSQL("Pro_Players_Add", New ObjectPara("@Name", PlayerName), _

New ObjectPara("@Midfield", Midfield), _

New ObjectPara("@Dateofbirth", Dateofbirth), _

New ObjectPara("@Country", Country), _

New ObjectPara("@Club", Club), _

New ObjectPara("@Height", Height), _

New ObjectPara("@Weight", Weight), _

New ObjectPara("@ImageURL", ImageURL))

End Sub

#End Region

#Region "Event Handles"

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

Try

If Not IsPostBack Then

CreateFolder()

End If

Catch ex As Exception

End Try

End Sub

Private Sub cmdImport_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles cmdImport.Click

Try

Dim sFileName As String = ""

Dim PlayerName As String = ""

Dim Midfield As String = ""

Dim Dateofbirth As Date

Dim Country As String = ""

Dim Club As String = ""

Dim Height As String = ""

Dim Weight As String = ""

Dim ImageURL As String = ""

If ImportFile.PostedFile.FileName <> "" Then

sFileName = UploadFile(ImportFile)

Dim objCommand As New OleDbCommand()

objCommand = ExcelConnection(sFileName)

' create a DataReader

Dim reader As OleDbDataReader

reader = objCommand.ExecuteReader()

While reader.Read()

PlayerName = ReaderValue(reader, 0)

Midfield = ReaderValue(reader, 1)

Dateofbirth = ReaderValue(reader, 2)

Country = ReaderValue(reader, 3)

Club = ReaderValue(reader, 4)

Height = ReaderValue(reader, 5)

Weight = ReaderValue(reader, 6)

ImageURL = ReaderValue(reader, 7)

If PlayerName <> "" Then

UpdateRecord(PlayerName, Midfield, Dateofbirth, Country, Club, Height, Weight, ImageURL)

End If

End While

End If

Catch ex As Exception

lblMessage.Text = ex.Message

lblMessage.ForeColor = System.Drawing.Color.Red

Finally

lblMessage.Text = "Data Inserted Sucessfully"

lblMessage.ForeColor = System.Drawing.Color.Green

End Try

End Sub

Private Sub cmdCancel_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles cmdCancel.Click

Response.Redirect("Default.aspx")

End Sub

#End Region

End Class

End Namespace

- B7: Mở file Default.aspx dưới dạng HTML và nhập mã HTML

<%@ Page Title="Import Data from excel to SQL server in ASP.Net" Language="vb" MasterPageFile="~/Site.Master" AutoEventWireup="false" CodeBehind="Default.aspx.vb" Inherits="ImportDataFromExcelToSQL._Default" %>

<asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent">

<asp:ScriptManager ID="ScriptManager1" runat="server">

</asp:ScriptManager>

<h3>

Import Data from excel to SQL server in ASP.Net

</h3>

<asp:UpdatePanel ID="updatePanel" runat="server" UpdateMode="Conditional">

<tr>

<td>

<asp:LinkButton id="cmdImport" runat="server" CssClass="btn btn-small" Causesvalidation="false">

</asp:LinkButton>

</td>

<asp:Label ID="plKeyword" runat="server" Text="Keyword"></asp:Label>

<asp:TextBox ID="txtSearch" CssClass="form-control" ToolTip="Enter Keyword" runat="server" width="200px"></asp:TextBox>

<asp:ImageButton ID="cmdQuickSearch" runat="server" causesvalidation="false" imageurl="~/images/icon_search.gif"></asp:ImageButton>

</td>

</tr>

<asp:Label ID="lblMessage" runat="server" Text="No Data"></asp:Label>

</td>

</tr>

<tr>

<asp:GridView ID="grvObject" runat="server" AllowPaging="true" PageSize="12"

CssClass="GridStyle" BorderColor="#cbcbcb" BorderStyle="solid"

BorderWidth="1" AutoGenerateColumns="false" DataKeyNames="PlayerID" width="100%">

<asp:TemplateField HeaderText="Name">

<asp:Label ID="lblName" Text='<%# Eval("Name") %>' runat="server"></asp:Label>

</ItemTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="Midfield">

<asp:Label ID="lblMidfield" Text='<%# Eval("Midfield") %>' runat="server"></asp:Label>

</ItemTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="Dateofbirth">

<asp:Label ID="lblDateofbirth" Text='<%# Eval("Dateofbirth").ToShortDateString %>' runat="server"></asp:Label>

</ItemTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="Country">

<asp:Label ID="lblCountry" Text='<%# Eval("Country") %>' runat="server"></asp:Label>

</ItemTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="Club">

<asp:Label ID="lblClub" Text='<%# Eval("Club") %>' runat="server"></asp:Label>

</ItemTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="Height">

<asp:Label ID="lblHeight" Text='<%# Eval("Height") %>' runat="server"></asp:Label>

</ItemTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="Weight">

<asp:Label ID="lblWeight" Text='<%# Eval("Weight") %>' runat="server"></asp:Label>

</ItemTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="Image">

<asp:Image ID="imgPlayer" Width="40" ImageUrl='<%#Eval("ImageURL")%>' AlternateText='<%# Eval("ImageURL") %>' runat="server" />

</ItemTemplate>

</asp:TemplateField>

</Columns>

</asp:GridView>

</td>

</tr>

</table>

</ContentTemplate>

</asp:UpdatePanel>

</asp:Content>

- B8: Viết Code cho file Default.aspx

'Visit http://thuthuatlaptrinh.blogspot.com for more ASP.NET Tutorials

Namespace ImportDataFromExcelToSQL

Public Class _Default

Inherits System.Web.UI.Page

#Region "Bind Data"

Private Sub BindPlayers()

Dim objBind As New DataTable

objBind = BindData(txtSearch.Text)

If Not objBind Is Nothing Then

If objBind.Rows.Count > 0 Then

grvObject.DataSource = objBind

grvObject.DataBind()

trMessage.Visible = False

grvObject.Visible = True

Else

trMessage.Visible = True

grvObject.Visible = False

End If

updatePanel.Update()

End Sub

Private Function BindData(ByVal Keyword As String) As DataTable

Dim objSQL As New SqlDataProvider

Dim objBind As DataTable = objSQL.FillTable("Pro_Players_List", New ObjectPara("@Keyword", Keyword.Trim))

Return objBind

End Function

#End Region

#Region "GridView Methods"

Private Sub grvObject_PageIndexChanging(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewPageEventArgs) Handles grvObject.PageIndexChanging

grvObject.PageIndex = e.NewPageIndex

BindPlayers()

End Sub

#End Region

#Region "Event Handles"

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

Try

If Page.IsPostBack = False Then

'Default Submit Button

Page.Form.DefaultButton = cmdQuickSearch.UniqueID

BindPlayers()

End If

Catch ex As Exception

End Try

End Sub

Private Sub cmdQuickSearch_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles cmdQuickSearch.Click

BindPlayers()

End Sub

Private Sub cmdImport_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles cmdImport.Click

Response.Redirect("Import.aspx")

End Sub

#End Region

End Class

End Namespace

- B9: Download file Excel mẫu tại đây

- B10: Chạy Project, kích nút Import -> chọn File Excel vừa download -> Kích nút Import, toàn bộ dữ liệu trong file Excel đã được đưa vào bảng Players trong SQL Server.

Chúc các bạn thành công!

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