前台：
HTML的代碼:(關鍵是要在form里設置enctype="multipart/form-data",這樣才能在提交表單時,將文件以二進制流的形式傳輸到服務器)
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>無標題頁</title>
</head>
<body>
<form id="Form1" action="/json/ajax/WinLog.aspx" method="post" enctype="multipart/form-data">
<div style="text-align: center">
填寫用戶信息
<hr style="size: 50%" />
</div>
<div style="text-align: left">
用戶名：<input name="user_name" type="text" /><br />
密碼：
<input name="Password1" type="password" /><br />
確認密碼：<input name="Password2" type="password" /><br />
性別：<input name="女" type="radio" value="女" />女<input id="Radio1" type="radio" value="男"
name="sex" />男<br />
上傳照片：<input id="File1" type="file" name="picture" /><br />
<br />
<input type="submit" value="提交" />
<input type="reset" value="重置" /></div>
</form>
</body>
</html>
后台：
namespace benz_CSI.json.ajax
{
public partial class WinLog : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
Response.Write("利用 Response對象獲取客戶端數據");
Response.Write("<hr/>");
string[] names = Request.Form.AllKeys;//定義name保存表單中的所有鍵即元素名稱
for (int i = 0; i < names.Length; i++)
{
string[] values = Request.Form.GetValues(i);//定義values保存表單中所有鍵的鍵值
for (int j = 0; j < values.Length; j++)
Response.Write(names[i] + "=" + values[j] + "<br/>");
}
Response.Write("<hr/>");
Response.Write(Request.Form["picture"]);
SaveFile(Request.Form["picture"]);
}
public bool SaveFile(string filePath)
{
if (Request.Files.Count >= 1)
{
HttpPostedFile postedFile = Request.Files[0];
string fileName, fileExtension;
fileName = System.IO.Path.GetFileName(postedFile.FileName); //文件名稱
if (fileName != "")
{
fileExtension = System.IO.Path.GetExtension(fileName); //上傳文件的擴展名
string new_filename = DateTime.Now.ToString("yyyyMMddHHmmss") + fileExtension; //給文件重新命名
string FileTemp = Page.MapPath("/json/ajax/upload/");
postedFile.SaveAs(FileTemp + new_filename);
Response.Write("文件 類 型：" + postedFile.ContentType.ToString() + "<br/>");
Response.Write("文件新名稱：" + new_filename + "<br/>");
Response.Write("文件原名稱：" + fileName + "<br/>");
Response.Write("文件擴展名：" + fileExtension + "<br/>");
Response.Write("文件原路徑：" + postedFile.FileName + "<br/>");
Response.Write("文件新路徑：" + FileTemp + new_filename + "<br/>");
}
else
{
Response.Write("false");
}
}
return true;
}
}
}