上传文件

        //获取用户输入 文件标题、备注
        string file_name = TxtTitile.Text.Trim();
        string file_content = Txtcontent.Text.Trim();
        string username = "测试用户";//测试用的


        string name = FileUpload1.FileName;//获取已上传文件的名字
        string size = FileUpload1.PostedFile.ContentLength.ToString();//获取已上传文件的大小
        string type = FileUpload1.PostedFile.ContentType;//获取已上传文件的MIME内容类型，但是不直观
        string type2 = name.Substring(name.LastIndexOf("." )+ 1);//文件的后缀名
        string ipath = Server.MapPath("file") + "\\" + name;//获取文件上传的实际路径
        string fpath = Server.MapPath("upfile") + "\\" + name;//获取文件上传的实际路径
       // string wpath = "file\\" + name;//写入到数据库去的虚拟路径
        string wpath1 = "~/file/" + name;//写入到数据库去的虚拟路径
       // Response.Write(wpath1);

            //判断文件名是否含有【点】号
            if (type2.Length<0)
        {
                //为假，弹出消息框提示用户
                AlertMsg("你上传文件不合规矩！");
        }
            else
            {
                //下面判断文件的格式
                if (1==1)
                {
                    if (wpath1 == null)
                    {
                        AlertMsg("上传路径不能为空");
                    }
                    //将文件保存到path这个路径
                    FileUpload1.SaveAs(ipath);


                    //存入数据库
                    SqlHelper.Execsql(file_name, file_content, wpath1, username);
                  
                   // 弹出成功消息框
                    AlertMsg("上传成功！");
                    bind();
                    //清空数据
                    TxtTitile.Text = "";
                    Txtcontent.Text = "";
                 
                   
                   
                }
                else
                {
                    AlertMsg("上传失败！");

                }
         
        }