摘要:[ASP.NET] 上傳圖檔並顯示在網頁上
最近小弟剛好遇到有個需求
USER需要上傳圖片,並且可以顯示在網頁上
但是,因為怕上傳圖片太多導致儲存位置爆掉
因此~小弟把圖片都在記憶體中處理,沒有實際存到Server電腦上
減少不必要的浪費,速度也比較快
不多說直接看CODE
<!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 runat="server">
<title>上傳圖檔並顯示在網頁上</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:FileUpload ID="uploadFile" runat="server" />
<br />
<br />
<asp:Button ID="Button1" runat="server" Text="顯示圖片" onclick="Button1_Click" />
</div>
</form>
</body>
</html>
protected void Button1_Click(object sender, EventArgs e)
{
//上傳圖檔並顯示在畫面上
if (uploadFile.PostedFile != null)
{
// File was sent
HttpPostedFile myFile = uploadFile.PostedFile;
// Get size of uploaded file
int nFileLen = myFile.ContentLength;
// Allocate a buffer for reading of the file
byte[] myData = new byte[nFileLen];
myFile.InputStream.Read(myData, 0, nFileLen);
Response.Clear();
Response.ContentType = "image/jpeg";
Response.BinaryWrite(myData);
}
else
{
// No file
}
}
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