ASP.NET MVC (三、表单与文件上传)（3）

/// <summary>
/// 上传文件
/// </summary>
/// <param name="userName"></param>
/// <param name="files"></param>
[HttpPost]
public void AddInfo(string userName,HttpPostedFileBase files) {
    if (string.IsNullOrEmpty(userName)) {
        Response.Write("<script>alert('用户名不允许为空');window.location.href='Index';</script>");
        return;
    }
    if (files == null || files.ContentLength == 0) {
        Response.Write("<script>alert('上传文件不允许为空');window.location.href='Index';</script>");
        return;
    }
    string fileName = files.FileName;//上传文件名称
    string Exten = Path.GetExtension(fileName);//获取后缀名
    string uuid = System.Guid.NewGuid().ToString("N");//随机uuid
    string newFileName = uuid + Exten;//新文件名
    string url = Server.MapPath("~/Images/")+newFileName;//文件存储位置
    files.SaveAs(url);//保存
Response.Write("<script>alert('上传成功');window.location.href='Index';</script>");
}