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ASP.NET2.0中将文件上传到Access数据库的代码、从数据库显示图片的代码
此问题经常被人问，本文列出将文字和图片上传到数据库的方法。
Access数据库代码
<%@ Page Language="C#" EnableViewState="true" %>
<%@ Import Namespace="System.Data.OleDb" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
protected void Button1_Click( object sender, EventArgs e )
{
System.IO.Stream fileDataStream = FileUpload1.PostedFile.InputStream;
if (fileDataStream.Length < 1)
{
Msg.Text = "请选择文件。";
return;
}
//得到文件大小
int fileLength = FileUpload1.PostedFile.ContentLength;
//创建数组
byte[] fileData = new byte[fileLength];
//把文件流填充到数组
fileDataStream.Read(fileData, 0, fileLength);
//得到文件类型
string fileType = FileUpload1.PostedFile.ContentType;
//构建数据库连接，SQL语句，创建参数
string strCnn = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + Server.MapPath("Image2Access.mdb");
OleDbConnection myConnection = new OleDbConnection(strCnn);
OleDbCommand command = new OleDbCommand("INSERT INTO Person (PersonName,PersonEmail,PersonSex,PersonImageType,PersonImage)" +
"VALUES (@PersonName,@PersonEmail,@PersonSex,@PersonImageType,@PersonImage)", myConnection);
command.Parameters.AddWithValue("@PersonName",TextBox1.Text);
command.Parameters.AddWithValue("@PersonEmail", "mengxianhui@dotnet.aspx.cc");
command.Parameters.AddWithValue("@paramPersonSex", "男");
command.Parameters.AddWithValue("@PersonImageType", fileType);
command.Parameters.AddWithValue("@PersonImage", fileData);
//打开连接，执行查询
myConnection.Open();
command.ExecuteNonQuery();
myConnection.Close();
Response.Redirect(Request.RawUrl);
}
protected void Page_Load( object sender, EventArgs e )
{
if (!Page.IsPostBack)
{
BindGrid();
}
}
private void BindGrid( )
{
string strCnn = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source="
+ Server.MapPath("Image2Access.mdb");
OleDbConnection myConnection = new OleDbConnection(strCnn);
OleDbCommand myCommand = new OleDbCommand("SELECT * FROM Person", myConnection);
try
{
myConnection.Open();
GridView1.DataSource = myCommand.ExecuteReader(System.Data.CommandBehavior.CloseConnection);
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