C#中文件大小服务器端的限制 [英] Limit on a file size server side in C#
问题描述
我当前正在MVC4中上传文件,但是在我的控制器中,我试图将文件大小限制为最大4MB,但收到以下警告
I am currently uploading files in MVC4 but in my controller I tried to limit the file size to 4MB max but got the following warning
comparison to integral constant is useless
使用 Haacks 示例
[HttpPost]
public ActionResult Upload(HttpPostedFileBase file)
{
if (file.ContentLength > 0)
{
if (file.ContentLength < 4000000000 )
{
var fileName = System.IO.Path.GetFileName(file.FileName);
var path = System.IO.Path.Combine(Server.MapPath("~/App_Data/uploads"), fileName);
file.SaveAs(path);
}
运行代码时出现错误
Maximum request length exceeded.
由于file.ContentLength
是int
,我无法控制它,所以不知道如何解决.谁能帮助我限制服务器端的文件大小.
Since file.ContentLength
is an int
over which I have no control I do not know what is the way around this. Can anyone help me on how to limit the file size server side.
编辑对于可能要指出4000000000
是4gb
的人来说,您是正确的.但是,即使我将其替换为4000000
,我的操作也会成功完成,但不会保存文件,因为我的If()
不满意,即file.ContentLength < 4000000
返回false.
Edit To those that might want to point out that 4000000000
is 4gb
you are correct. But even if I replace it with 4000000
my action completes sucessfully but does not save the file as my If()
is not satisfied i.e file.ContentLength < 4000000
returns false.
编辑这不是一个重复的问题,我想将文件大小限制为一定的限制,而不忽略IIS中的文件大小限制.
Edit This is not a duplicate question I want to limit my file size to a certain limit not ignore the file size limit in IIS.
推荐答案
在您的web.config中设置此值
Set this value in your web.config
<httpRuntime maxRequestLength="4096"/>
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