c# 图片上传后台

[HttpPost]

public MessageModel PostAttachFiles()
{
string path;
string returnPath;
try
{
HttpRequest request = HttpContext.Current.Request;
HttpFileCollection fileCollection = request.Files;
// 判断是否有文件
if (fileCollection.Count > 0)
{
HttpPostedFile httpPostedFile = fileCollection[0];
// 获取文件扩展名
string fileExtension = Path.GetExtension(httpPostedFile.FileName);
string strHashData = DateTime.Now.ToString(“yyyyMMddHHmmssffff”);
System.IO.Directory.CreateDirectory(AppDomain.CurrentDomain.BaseDirectory + “Img\\” + strHashData);
// 设置上传路径
path = AppDomain.CurrentDomain.BaseDirectory + “Img\\” + strHashData+ “\\”+httpPostedFile.FileName;
returnPath= “Img/” + strHashData + “/” + httpPostedFile.FileName;
httpPostedFile.SaveAs(path);
}
else
{
return new MessageModel()
{
msg = “上传失败”,
success = false,
};
}
}
catch(Exception ex) {
return new MessageModel()
{
msg = “上传失败”,
success = false,
};
}
return new MessageModel()
{
msg = “上传成功”,
success = true,
response = returnPath
};
}