本文介绍了访问输入类型的文件在asp.net服务器端的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧! 问题描述 我使用的是&LT;输入类型=文件/&GT; 标签来上传文件到服务器。我如何在服务器端访问该文件,并将其存储在服务器上? (该文件是图像文件)I am using the <input type="file" /> tag to upload a file to the server. How do I access the file at the server side and store it at the server? (The file is an image file)客户端code是:<form id="form1" action="PhotoStore.aspx" enctype="multipart/form-data"> <div> <input type="file" id="file" onchange="preview(this)" /> <input type="submit" /> </div></form> Photostore.aspx.cs有Photostore.aspx.cs hasprotected void Page_Load(object sender, EventArgs e) { int index = 1; foreach (HttpPostedFile postedFile in Request.Files) { int contentLength = postedFile.ContentLength; string contentType = postedFile.ContentType; string fileName = postedFile.FileName; postedFile.SaveAs(@"c:\test\file" + index + ".tmp"); index++; } }我试着上传JPG文件。无法看到保存的文件。这是怎么回事了?I tried uploading a jpg file. Not able to see a saved file. What is going wrong?推荐答案您需要添加 ID 和 =服务器属性是这样的:You'll need to add id and runat="server" attributes like this:<input type="file" id="MyFileUpload" runat="server" />然后,在服务器端,你将有机会获得控件的PostedFile属性,它会给你一个ContentLength, ContentType, FileName, InputStream特性和SaveAs方法等:int contentLength = MyFileUpload.PostedFile.ContentLength;string contentType = MyFileUpload.PostedFile.ContentType;string fileName = MyFileUpload.PostedFile.FileName;MyFileUpload.PostedFile.Save(@"c:\test.tmp");另外,你可以使用Request.Files它给你所有上传文件的集合:Alternatively, you could use Request.Files which gives you a collection of all uploaded files:int index = 1;foreach (HttpPostedFile postedFile in Request.Files){ int contentLength = postedFile.ContentLength; string contentType = postedFile.ContentType; string fileName = postedFile.FileName; postedFile.Save(@"c:\test" + index + ".tmp"); index++;} 这篇关于访问输入类型的文件在asp.net服务器端的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!
10-15 06:40