<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<form action="upload.do" method="post" enctype="multipart/form-data">
选择文件：<input type="file" name="filename" value="" /><br>
<input type="submit" value="Upload" name="upload" />
</form>
</body>
</html>
