/// <summary>
/// 获取一个文件信息
/// </summary>
public void GetOneFile()
{
int FL_ID = Convert.ToInt32(Request["FL_ID"]);
SYS_FILE f = db.SYS_FILE.Where(o => o.FL_ID == FL_ID).FirstOrDefault();
string str_result = new AjaxObjectResult(f).ToString();
Response.Write(str_result);
}
public string test()
{
SYS_FILE f = new SYS_FILE();
f.FL_NAME = DateTime.Now.ToString("yyyy-MM-dd");
db.SYS_FILE.Add(f);
db.SaveChanges();
return(new AjaxSuccessResult("s").ToString());
}
/// <summary>
/// 下载一个文件
/// </summary>
public void DownLoad()
{
int FL_ID = Convert.ToInt32(Request["FL_ID"]);
SYS_FILE f = db.SYS_FILE.Where(o => o.FL_ID == FL_ID).FirstOrDefault();
string str_url_a = Server.MapPath("~" + f.FL_URL);
System.IO.FileInfo file = new System.IO.FileInfo(str_url_a);
Response.Clear();
Response.Charset = "utf-8";//设置输出的编码
Response.ContentEncoding = System.Text.Encoding.UTF8;
Response.AddHeader("Content-Disposition", "attachment; filename=" + f.FL_NAME);
Response.AddHeader("Content-Length", file.Length.ToString());
Response.ContentType = "application/octet-stream";
Response.WriteFile(file.FullName);
Response.End();
}
public void DeleteFile()
{
int FL_ID = Convert.ToInt32(Request["FL_ID"]);
SYS_FILE f = db.SYS_FILE.Where(o => o.FL_ID == FL_ID).FirstOrDefault();
if (f != null)
{
var FD_ID = f.FL_FD_ID;
f.FL_ACTIVE = false;
db.SaveChanges();
update_folder(FD_ID);
Response.Write(new AjaxSuccessResult("删除成功").ToString());
}
else
{
Response.Write(new AjaxSuccessResult("删除成功").ToString());
}
}
public void PreViewFile()
{
List <string> list_image_ex = new List <string>();
list_image_ex.Add("jpg");
list_image_ex.Add("png");
list_image_ex.Add("bmp");
list_image_ex.Add("jpeg");
int FL_ID = Convert.ToInt32(Request["FL_ID"]);
SYS_FILE f = db.SYS_FILE.Where(o => o.FL_ID == FL_ID).FirstOrDefault();
if (string.IsNullOrEmpty(f.FL_ICON_S))
{
if (list_image_ex.Contains(f.FL_EXTENSION))
{
//1查询图片的绝对路径
string str_url = Server.MapPath("~" + f.FL_URL);
//2生成图片的预览路径
string str_url_new = SmallImageWidth(str_url, 200);
//3赋值给FL_EXTENSION
f.FL_ICON_S = str_url_new;
//返回
string str_result = new AjaxSuccessResult(str_url_new).ToString();
Response.Write(str_result);
}
else
{
string str_result = new AjaxErrorResult("暂时不支持缩略图").ToString();
Response.Write(str_result);
}
}
else
{
string str_result = new AjaxSuccessResult(f.FL_ICON_S).ToString();
Response.Write(str_result);
}
}
/// <summary>
/// 上传一个文件
/// </summary>
public void Upload()
{
HttpFileCollection files = Request.Files;
AjaxErrorResult r = new AjaxErrorResult("error");
string str_FD_ID = Request["FD_ID"];
int FD_ID = 0;
if (!string.IsNullOrEmpty(str_FD_ID))
{
FD_ID = Convert.ToInt32(str_FD_ID);
}
string BUSINESS_TYPE = Request["BUSINESS_TYPE"];
if (string.IsNullOrEmpty(BUSINESS_TYPE))
{
BUSINESS_TYPE = string.Empty;
}
try
{
if (files == null)
{
Response.Write(r.ToString());
return;
}
if (files.Count == 0)
{
Response.Write(r.ToString());
return;
}
HttpPostedFile f = files[0];
string extension = f.FileName.Substring(f.FileName.LastIndexOf(".") + 1);
string str_path_v = "/file/upload/" + DateTime.Now.ToString("yyyy-MM-dd") + "/";
string str_file_name = Guid.NewGuid().ToString("N") + "." + extension;
string str_path_s = Server.MapPath("~" + str_path_v);
//string str_file_old = "";
//Dim i_index As Int32 = str_file_url_v.LastIndexOf("/")
//Dim str_file_name As String = comm_fun.convert_string(str_file_url_v.Substring(i_index + 1, str_file_url_v.Length - i_index - 1))
if (!System.IO.Directory.Exists(str_path_s))
{
System.IO.Directory.CreateDirectory(str_path_s);
}
string str_file_url_s = str_path_s + str_file_name;
f.SaveAs(str_file_url_s);
string str_file_url_v = str_path_v + str_file_name;
//新增文件表
SYS_FILE f1 = new SYS_FILE();
f1.FL_ACTIVE = true;
f1.FL_SIZE = f.ContentLength;
f1.FL_EXTENSION = extension;
f1.FL_NAME = get_old_filename(f.FileName);
f1.FL_URL = str_file_url_v;
f1.FL_CREATE_DATE = DateTime.Now;
f1.FL_FD_ID = FD_ID;
f1.FL_BUSINESS_TYPE = BUSINESS_TYPE;
db.SYS_FILE.Add(f1);
db.SaveChanges();
Response.Write(new AjaxSuccessResult(f1.FL_ID.ToString()).ToString());
return;
}
catch (Exception ex)
{
comm_fun.WriteLog(ex.ToString());
Response.Write(r.ToString());
return;
}
}
