ASP.NET接收Http发送的图片
一、模拟发送端
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>图片上传</title>
</head>
<body>
<form action="UpLoad.aspx" method="post" enctype="multipart/form-data">
<input type="file" name="file1" />
<input type="submit" name="ok" value="submit" />
</form>
</body>
</html>
二、接收端.cs代码
1 protected void Page_Load(object sender, EventArgs e) 2 { 3 HttpFileCollection files = Request.Files; 4 HttpPostedFile postedFile = files["file1"]; 5 6 if (postedFile.ContentLength > 3072000) Response.Write("<script>alert('文件大小不能大于300K！')</script>");
7 string fileName, fileExtension; 8 fileName = System.IO.Path.GetFileName(postedFile.FileName); 9 string SaveFilePath = ""; 10 if (fileName != "") 11 { 12 SaveFilePath = "/UploadFile/" + System.DateTime.Now.ToString("yyyymmddhhmmss") + ".jpg"; 13
14 fileExtension = System.IO.Path.GetExtension(fileName).ToLower(); 15 if (fileExtension != ".jpg") Response.Write("<script>alert('文件格式不正确，你只能上传jpg格式文件！')</script>");
16
17 postedFile.SaveAs(Server.MapPath(SaveFilePath)); 18 19 } 20 }
