项目开发总结（联想GIS）-----上传附件，动态创建文件夹

1、根据条件来动态的创建附件上传的文件夹。

      要保证目录具有写的权限。

        //上传附件
        if (this.fulLocation.HasFile)
        {
            try
            {
                string FileName = this.fulLocation.FileName;//获取文件名
                string[] FileArray = FileName.Split('.');
                string FileExt = FileArray[FileArray.Length - 1].ToString();//获取文件后缀
                int FileSize = this.fulLocation.PostedFile.ContentLength;//获取文件大小

                //生成随机数
                Random oRandom = new Random();
                string oStringRandom = oRandom.Next(9999).ToString();

                //格式化日期作为文件名
                long oStringTime = DateTime.Now.ToFileTimeUtc();

                //组合成文件名
                string PostFile = oStringTime + oStringRandom + "." + FileExt;

                //定义部门文件夹(根据dropdownlist动态创建根文件夹)
                string rootCategory = this.ddlD.SelectedValue;

                //所要创建文件夹的名字(根据dropdownlist的选择项来动态的创建)
                string CategoryDirectory = this.ddlCategory.SelectedItem.Text.Replace("-","");

                string CategoryPath = Server.MapPath("~") + "//" + rootCategory + "//" + CategoryDirectory;

                //如果文件夹不存在则创建
                if (!Directory.Exists(CategoryPath))
                {
                    Directory.CreateDirectory(CategoryPath);
                }

                this.fulLocation.SaveAs(CategoryPath + "//" + PostFile);

                doc.Location = "~" + "//" + rootCategory + "//" + CategoryDirectory + "//" + PostFile;
                doc.LocationName = FileName;

            }
            catch (Exception ex)
            {
                throw ex;
            }
        }
        else
        {
            doc.Location = "";
        } 

 

2。如果执行删除操作，将同时加数据库中的数据和文件夹中的文件删除

            //删除文档的同时删除附件
            Document doc = ServiceLocator.DocumentService.LoadDocument(id);
            string filePath = Server.MapPath(doc.Location);

            FileInfo filedel = new FileInfo(filePath);
            if (filedel.Exists)
            {
                filedel.Delete();
            }

            ServiceLocator.DocumentService.DeleteDocument(id);

            JavaScript.Alert("恭喜您！操作成功！", this.Page);
            DataBind_Document(1);
            return;