protected void Page_Load(object sender, EventArgs e)
{
InitializeHelper.Init();
var reportFullPath = Path.Combine(DFPub.GetCurrentPhysicalFolder(), string.Format("temp\\{0}", Guid.NewGuid().ToString()));
var folder = Path.GetDirectoryName(reportFullPath);
if (!Directory.Exists(folder))
{
Directory.CreateDirectory(folder);
}
// 删除以前的文件
OldFileProcessor.DeleteOldFile(folder, 4);
// 客户端下载显示的文件名
var fileName = Path.GetFileName(reportFullPath);
// 判断是不是从数据库中下载文件
var FileId = Request["fileid"];
var DownloadFileName = Request["DownloadFileName"];
if (!string.IsNullOrWhiteSpace(FileId))
{
using (var db = Pub.DB)
{
var file = db.Query <XDSW_T_FILE>("select * from XDSW_T_FILE where FileId=@FileId", new { FileId = FileId }).FirstOrDefault();
var stream = StreamHelper.ToStream(file.FileData);
StreamHelper.SaveStream(stream, reportFullPath);
fileName = file.FileName;
}
}
// 判断是否是下载工作流模型
var ModelId = Request["ModelId"];
if (!string.IsNullOrWhiteSpace(ModelId))
{
var entity = WFDA.Instance.ModelSaveToLocal(ModelId, reportFullPath);
fileName = string.Format("{0}.dat", entity.Model.ModelName);
}
if (!string.IsNullOrWhiteSpace(DownloadFileName))
{
reportFullPath = DownloadFileName;
var str = DownloadFileName.Split('\\');
fileName = str[str.Length - 1];// D:\Ceprei\myproject\sumin\sourcecode\DynamicForm\kindeditor\attached\pdf\\20190723\20190723160214_4592.pdf
}
//以字符流的形式下载文件
FileStream fs = new FileStream(reportFullPath, FileMode.Open);
byte[] bytes = new byte[(int)fs.Length];
fs.Read(bytes, 0, bytes.Length);
fs.Close();
Response.ContentType = "application/octet-stream";
//通知浏览器下载文件而不是打开
Response.AddHeader("Content-Disposition", "attachment; filename=" + HttpUtility.UrlEncode(fileName, System.Text.Encoding.UTF8));
Response.BinaryWrite(bytes);
Response.Flush();
Response.End();
}