CREATE TABLE [imageinsertsql] (
[Imageid] [int] IDENTITY (1, 1) NOT NULL ,
[imagetitle] [varchar] (50) COLLATE Chinese_PRC_CI_AS NULL ,
[imagetype] [varchar] (50) COLLATE Chinese_PRC_CI_AS NULL ,
[imagesize] [int] NULL ,
[imagedata] [image] NULL
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]
GO
<div>
<asp:Label ID="Label1" runat="server" Height="43px" Text="Label" Width="360px"></asp:Label><br />
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox><br />
<input id="File1" type="file" runat="server"/><br />
<asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Button" />
<br />
<asp:TextBox ID="TextBox2" runat="server">0</asp:TextBox><br />
<asp:Button ID="Button2" runat="server" OnClick="Button2_Click" Text="显示图片" />
</div>
protected void Button1_Click(object sender, EventArgs e)
{
HttpPostedFile UpFile = File1.PostedFile;
int FileLenght = UpFile.ContentLength;
TextBox1.Text = FileLenght.ToString();
try
{
if (FileLenght == 0)
{
TextBox1.Text = "<b>你未选择上传得文件</b>";
}
else
{
Byte[] FileByteArray= new Byte[FileLenght];
Stream StreamObject =UpFile.InputStream;
StreamObject.Read(FileByteArray,0,FileLenght);
string strconn="Server=.;UID=sa;PWD=;Database=Demo";
string strinsert="insert into imageinsertsql(imagetitle,imagesize,imagetype,imagedata) values(";
strinsert+="@imagetitle,@imagesize,@imagetype,@imagedata)";
SqlCommand mycomm = new SqlCommand(strinsert, new SqlConnection(strconn));
mycomm.Parameters.Add("@imagetitle", SqlDbType.Text);
mycomm.Parameters.Add("@imagesize", SqlDbType.Int);
mycomm.Parameters.Add("@imagetype", SqlDbType.Text);
mycomm.Parameters.Add("@imagedata", SqlDbType.Image);
mycomm.Parameters["@imagetitle"].Value = TextBox1.Text;
mycomm.Parameters["@imagesize"].Value = FileLenght;
mycomm.Parameters["@imagetype"].Value = UpFile.ContentType;
mycomm.Parameters["@imagedata"].Value = FileByteArray;
mycomm.Connection.Open();
mycomm.ExecuteNonQuery();
mycomm.Connection.Close();
Label1.Text = "<B>上传文件成功</B>";
}
}
catch(Exception ex)
{
TextBox1.Text = ex.Message.ToString();
}
}
protected void Button2_Click(object sender, EventArgs e)
{
int imageid = Convert.ToInt32(TextBox2.Text);
string strconn = "Server=.;UID=sa;PWD=;Database=Demo";
string strsquery = "select * from imageinsertsql where imageid=@imageid";
SqlCommand mycom = new SqlCommand(strsquery, new SqlConnection(strconn));
mycom.Parameters.Add("@imageid", SqlDbType.Int);
mycom.Parameters["@imageid"].Value = imageid;
mycom.Connection.Open();
SqlDataReader dr = mycom.ExecuteReader();
if (dr.Read())
{
Response.ContentType = (string)dr["imagetype"];
Response.OutputStream.Write((byte[])dr["imagedata"], 0, (int)dr["imagesize"]);
}
else
{
Response.Write("没有这个ID");
Response.End();
}
}
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