C# ASP.NET保存文件InputStream

我正在尝试将一个文件上载到ASP.NET中的文件夹，到目前为止，我得到的文件流如下所示：

public void Upload()
        {
            foreach (string file in Request.Files)
            {
                var fileContent = Request.Files[file];
                if (fileContent != null && fileContent.ContentLength > 0)
                {
                    var stream = fileContent.InputStream;
                    var fileName = fileContent.FileName;
                    //you can do anything you want here
                }
            }

            foreach (string key in Request.Form)
            {
                var value = Request.Form[key];
            }
        }

---

我只是不知道如何保存它……我太累了。

你试过StreamWriter吗

using (StreamWriter sw = new StreamWriter(Server.MapPath("~/yourfile.txt"), true))
 {
     sw.WriteLine("lalala");
 }  

---

如果您使用的是.NET4及以上版本，则可以使用方法

您可以在代码中使用它，如下所示

public void Upload()
{
    foreach (string file in Request.Files)
    {
        var fileContent = Request.Files[file];
        if (fileContent != null && fileContent.ContentLength > 0)
        {
            var stream = fileContent.InputStream;
            var fileName = fileContent.FileName;
            //you can do anything you want here
            var path = Server.MapPath("~/SomeFolder")
            using (var newFile = File.Create(Path.Combine(path,fileName))
            {
                await stream.CopyTo(newFile);
            }
        }
    }

    foreach (string key in Request.Form)
    {
        var value = Request.Form[key];
    }
}

---

只需创建文件并从源流复制到目标流

using (var file = File.Create(fileName))
{
    await stream.CopyToAsync(file);
}

---

保存到哪里？。。

using (var file = File.Create(fileName))
{
    await stream.CopyToAsync(file);
}