public IActionResult DownLoadFile(int id)
{
Tsdm_uploadfile_Da da = new Tsdm_uploadfile_Da();
Tsdm_uploadfile model = da.Select.Where(s => s.Id == id).First();
string url = _hostingEnvironment.WebRootPath + model.File_Path + model.File_Encode_Name;
var stream = System.IO.File.OpenRead(url);
var provider = new FileExtensionContentTypeProvider();
var memi = provider.Mappings[model.File_Type];
//增加系统操作日志
var userinfo = (HttpContext.User.Identity as System.Security.Claims.ClaimsIdentity);
var userName = userinfo.FindFirst("userName").Value;
Tsys_Log_Da logda = new Tsys_Log_Da();
logda.Insert(new Tsys_Log()
{
Content = $"用户[{userName}],下载文件：【{model.File_Decode_Name}】! 时间：{DateTime.Now}",
Createtime = DateTime.Now,
Type = (int)SysLogType.操作日志,
});
return(File(stream, memi, model.File_Decode_Name));
}
/// <summary>
/// 将异常日志写入数据库
/// </summary>
/// <param name="message"></param>
private void InsertSysLog(string message)
{
Tsys_Log_Da da = new Tsys_Log_Da();
Tsys_Log model = new Tsys_Log()
{
Content = message,
Createtime = DateTime.Now,
Type = (int)SysLogType.系统异常,
};
da.Insert(model);
}
public IActionResult List(string keyword, DateTime?keystartime, DateTime?keyendTime, int keytype, int pageIndex, int pageSize)
{
PageModel page = new PageModel();
page.PageIndex = pageIndex;
page.PageSize = pageSize;
Tsys_Log_Da da = new Tsys_Log_Da();
var list = da.ListByWhere(keyword, (SysLogType)keytype, keystartime, keyendTime, ref page);
return(SuccessResultList(list, page));
}
public IActionResult BatchDownload(string ids)
{
string[] snumber = ids.Split(',');
int[] idss = Array.ConvertAll(snumber, int.Parse);
if (idss.Length <= 0)
{
return(FailMessage("请选择您要下载的文件！"));
}
//获取文件集合
Tsdm_uploadfile_Da da = new Tsdm_uploadfile_Da();
List <Tsdm_uploadfile> files = da.Select.Where(s => idss.Contains(s.Id)).ToList();
//获取系统根目录
var webRootPath = _hostingEnvironment.WebRootPath;
//拿到用户id
var userinfo = (HttpContext.User.Identity as System.Security.Claims.ClaimsIdentity);
int userId = int.Parse(userinfo.FindFirst("userId").Value);
string userName = userinfo.FindFirst("userName").Value;
//创建并 确定文件===“下载”=====路径
var fileDownLoadPath = "/FileDownload/Project/" + userId + "/";
if (!Directory.Exists(webRootPath + fileDownLoadPath))
{
Directory.CreateDirectory(webRootPath + fileDownLoadPath);
}
string downloadurl = fileDownLoadPath + DateTime.Now.ToString("yyyyMMddhhmmss") + ".zip";
StringBuilder sb = new StringBuilder();
sb.Append($"用户{userName}下载如下文件：");
using (ZipOutputStream zip = new ZipOutputStream(System.IO.File.Create(webRootPath + downloadurl)))
{
Crc32 crc = new Crc32();
zip.SetLevel(1); //不缺时间就用9，缺时间不缺空间用0.
//打包压缩
foreach (var file in files)
{
sb.Append("{" + file.File_Decode_Name + "},");
string url = _hostingEnvironment.WebRootPath + file.File_Path + file.File_Encode_Name; //拿出当前文件地址
var fs = System.IO.File.OpenRead(url);
byte[] buffer = new byte[fs.Length];
fs.Read(buffer, 0, buffer.Length);
ZipEntry entry = new ZipEntry(Path.GetFileName(file.File_Decode_Name))
{
DateTime = file.Create_Time,
Size = fs.Length,
};
fs.Close();
crc.Reset();
crc.Update(buffer);
entry.Crc = crc.Value;
zip.PutNextEntry(entry);
zip.Write(buffer, 0, buffer.Length);
}
}
//写系统操作日志
Tsys_Log_Da logda = new Tsys_Log_Da();
logda.Insert(new Tsys_Log()
{
Content = sb.ToString(),
Createtime = DateTime.Now,
Type = (int)SysLogType.操作日志,
});
return(SuccessResult(downloadurl));
}
