public void ProcessRequest(HttpContext context)
{
context.Response.ContentType = "text/plain";
//context.Response.Write("Hello World");
string action = context.Request["action"];
string SourceTable = "";
if (context.Request["SourceTable"] != null)
{
SourceTable = context.Request["SourceTable"];
}
Guid ToId = new Guid();
if (context.Request["ToId"] != null)
{
ToId = Guid.Parse(context.Request["ToId"]);
}
string ShowName = "";
if (context.Request["ShowName"] != null)
{
ShowName = context.Request["ShowName"];
}
string JsonMsg = "";
HttpReSultMode resultMode = new HttpReSultMode();
switch (action)
{
case "GetFileList": //根据id集获取文件列表
#region
string id = context.Request["ToId"];
if (!string.IsNullOrEmpty(id))
{
var mql = File_ImageSet.SelectAll().Where(File_ImageSet.ToId.Equal(id));
List <File_Image> list = OPBiz.GetOwnList(mql);
resultMode.Code = 11;
resultMode.Data = JsonHelper.ToJson(list, true);
resultMode.Msg = "获取成功";
context.Response.Write(JsonHelper.ToJson(resultMode, true));
}
else
{
context.Response.Write("[]");
}
context.Response.End();
#endregion
break;
}
}
public void ProcessRequest(HttpContext context)
{
context.Response.ContentType = "text/plain";
//context.Response.Write("Hello World");
string action = context.Request["action"];
string SourceTable = "";
if (context.Request["SourceTable"] != null)
{
SourceTable = context.Request["SourceTable"];
}
Guid ToId = new Guid();
if (context.Request["ToId"] != null)
{
ToId = Guid.Parse(context.Request["ToId"]);
}
string ShowName = "";
if (context.Request["ShowName"] != null)
{
ShowName = context.Request["ShowName"];
}
string JsonMsg = "";
JsonMessage jmsg = new JsonMessage();
switch (action)
{
case "addImg": //上传文件
#region
string FileIdSet = "";
List <File_Image> listFile = new List <File_Image>();
bool IsValid = true;//检查只能为图片,仅小于100k可以上传
string messge = "";
string[] Types = { ".jpg", ".jpeg", ".gif", ".bmp", ".png", ".ico" };
int lenth = 1024 * 500;//一百k
if (context.Request.Files.Count > 0)
{
for (int i = 0; i < context.Request.Files.Count; i++)
{
HttpPostedFile hpFile = context.Request.Files[i];
if (!String.IsNullOrEmpty(hpFile.FileName))
{
string ext = System.IO.Path.GetExtension(hpFile.FileName);
if (!Types.Contains(ext.ToLower()))
{
IsValid = false;
messge = "只能为图片类型";
break;
}
else if (hpFile.ContentLength > lenth)
{
IsValid = false;
messge = "文件不能大于" + lenth / 1024 + "kB";
break;
}
}
}
}
if (context.Request.Files.Count > 0 && IsValid)
{
for (int i = 0; i < context.Request.Files.Count; i++)
{
File_Image file = new File_Image();
file.Id = Guid.NewGuid();
if (context.Request["ToId"] == null)
{
file.ToId = file.Id;
}
else
{
file.ToId = ToId;
}
file.AddTime = DateTime.Now;
file.UpdateTime = DateTime.Now;
file.SourceTable = SourceTable;
file.ShowName = ShowName;
HttpPostedFile hpFile = context.Request.Files[i];
if (!String.IsNullOrEmpty(hpFile.FileName))
{
string ext = System.IO.Path.GetExtension(hpFile.FileName);
if (hpFile.ContentType != "image/jpeg" || hpFile.ContentType != "image/pjpeg")
{
file.FileType = "图片";
file.Suffix = ext;
//给文件取随及名
Random ran = new Random();
file.FileName = hpFile.FileName.Substring(hpFile.FileName.LastIndexOf("\\") + 1);
if (String.IsNullOrEmpty(file.ShowName))
{
file.ShowName = file.FileName;
}
int RandKey = ran.Next(100, 999);
file.FileName = DateTime.Now.ToString("yyyyMMddhhmmss") + "_" + RandKey + ext;
string fileName = file.FileName;
//保存文件
string path = context.Request.MapPath(fileName);
string uriString = System.Web.HttpContext.Current.Server.MapPath("~/Upload/").ToString();
file.Route = "/Upload/";
file.FullRoute = "/Upload/" + path.Substring(path.LastIndexOf("\\") + 1);
hpFile.SaveAs(uriString + file.FullRoute.Substring(file.FullRoute.LastIndexOf("/") + 1));
//提示上传成功
}
/*添加一条信息;*/
object res = OPBiz.Add(file);
listFile.Add(file);
FileIdSet += file.FullRoute + ",";
}
}
}
if (IsValid)
{
if (!String.IsNullOrEmpty(FileIdSet))
{
JsonMsg = JsonHelper.ToJson(new JsonMessage
{
Success = true,
Data = JsonHelper.ToJson(listFile, true),
Message = "添加成功"
});
}
else
{
JsonMsg = JsonHelper.ToJson(new JsonMessage
{
Success = true,
Data = "[]",
Message = "没有数据"
});
}
}
else
{
JsonMsg = JsonHelper.ToJson(new JsonMessage
{
Success = false,
Data = "[]",
Message = messge
});
}
context.Response.Write(JsonMsg);
context.Response.End();
#endregion
break;
case "addFile": //上传文件
#region
string FileIdSet2 = "";
List <File_Image> listFile2 = new List <File_Image>();
bool IsValid2 = true; //检查只能为图片,仅小于100k可以上传
string messge2 = "";
int lenth2 = 1024 * 20000; //一百k
if (context.Request.Files.Count > 0)
{
for (int i = 0; i < context.Request.Files.Count; i++)
{
HttpPostedFile hpFile = context.Request.Files[i];
if (!String.IsNullOrEmpty(hpFile.FileName))
{
string ext = System.IO.Path.GetExtension(hpFile.FileName);
if (hpFile.ContentLength > lenth2)
{
IsValid = false;
messge2 = "文件不能大于" + lenth2 / 1024 + "kB";
break;
}
}
}
}
if (context.Request.Files.Count > 0 && IsValid2)
{
for (int i = 0; i < context.Request.Files.Count; i++)
{
File_Image file = new File_Image();
file.Id = Guid.NewGuid();
if (context.Request["ToId"] == null)
{
file.ToId = file.Id;
}
else
{
file.ToId = ToId;
}
file.AddTime = DateTime.Now;
file.UpdateTime = DateTime.Now;
file.SourceTable = SourceTable;
file.ShowName = ShowName;
HttpPostedFile hpFile = context.Request.Files[i];
if (!String.IsNullOrEmpty(hpFile.FileName))
{
string ext = System.IO.Path.GetExtension(hpFile.FileName);
if (hpFile.ContentType != "image/jpeg" || hpFile.ContentType != "image/pjpeg")
{
file.FileType = "文件";
file.Suffix = ext;
//给文件取随及名
Random ran = new Random();
file.FileName = hpFile.FileName.Substring(hpFile.FileName.LastIndexOf("\\") + 1);
if (String.IsNullOrEmpty(file.ShowName))
{
file.ShowName = file.FileName;
}
int RandKey = ran.Next(100, 999);
file.FileName = DateTime.Now.ToString("yyyyMMddhhmmss") + "_" + RandKey + ext;
string fileName = file.FileName;
//保存文件
string path = context.Request.MapPath(fileName);
string uriString = System.Web.HttpContext.Current.Server.MapPath("~/Upload/file/").ToString();
file.Route = "/Upload/file/";
file.FullRoute = "/Upload/file/" + path.Substring(path.LastIndexOf("\\") + 1);
hpFile.SaveAs(uriString + file.FullRoute.Substring(file.FullRoute.LastIndexOf("/") + 1));
//提示上传成功
}
/*添加一条信息;*/
object res = OPBiz.Add(file);
listFile2.Add(file);
FileIdSet2 += file.FullRoute + ",";
}
}
}
if (IsValid2)
{
if (!String.IsNullOrEmpty(FileIdSet2))
{
JsonMsg = JsonHelper.ToJson(new JsonMessage
{
Success = true,
Data = JsonHelper.ToJson(listFile2, true),
Message = "添加成功"
});
}
else
{
JsonMsg = JsonHelper.ToJson(new JsonMessage
{
Success = true,
Data = "[]",
Message = "没有数据"
});
}
}
else
{
JsonMsg = JsonHelper.ToJson(new JsonMessage
{
Success = false,
Data = "[]",
Message = messge2
});
}
context.Response.Write(JsonMsg);
context.Response.End();
#endregion
break;
case "GetFileList": //根据id集获取文件列表
#region
string id = context.Request["ToId"];
if (!string.IsNullOrEmpty(id))
{
var mql = File_ImageSet.SelectAll().Where(File_ImageSet.ToId.Equal(id));
List <File_Image> list = OPBiz.GetOwnList(mql);
context.Response.Write(JsonHelper.ToJson(list, true));
}
else
{
context.Response.Write("[]");
}
context.Response.End();
#endregion
break;
case "SaveToid": //保存更改ToID
#region
string Tid = context.Request["ToId"];
string IdSet = context.Request["IdSet"];
if (!string.IsNullOrEmpty(context.Request["ToId"]) && !string.IsNullOrEmpty(context.Request["IdSet"]))
{
string sql = " update File_Image set ToId='" + Tid + "' where Id in (" + IdSet + ")";
int i = OPBiz.ExecuteSqlWithNonQuery(sql);
if (i > 0)
{
jmsg.Success = true;
jmsg.Data = i.ToString();
jmsg.Message = "上传成功";
}
else
{
jmsg.Success = false;
jmsg.Data = "0";
jmsg.Message = "上传失败";
}
}
else
{
jmsg.Success = false;
jmsg.Data = "0";
jmsg.Message = "数据为空";
}
context.Response.Write(JsonHelper.ToJson(jmsg, true));
context.Response.End();
#endregion
break;
case "Delfile": //删除文件
#region
if (!string.IsNullOrEmpty(context.Request["IdSet"]))
{
string sql = " delete from File_Image where Id in (" + context.Request["IdSet"] + ")";
int i = OPBiz.ExecuteSqlWithNonQuery(sql);
if (i > 0)
{
jmsg.Success = true;
jmsg.Data = i.ToString();
jmsg.Message = "删除成功";
}
else
{
jmsg.Success = false;
jmsg.Data = "0";
jmsg.Message = "删除失败";
}
}
else
{
jmsg.Success = false;
jmsg.Data = "0";
jmsg.Message = "数据为空";
}
context.Response.Write(JsonHelper.ToJson(jmsg, true));
context.Response.End();
#endregion
break;
case "Download":
#region
if (!string.IsNullOrEmpty(context.Request["Url"]))
{
// 检查请求下载文件的有效性
string filePath = System.Web.HttpContext.Current.Server.MapPath(context.Request["Url"]);
if (!System.IO.File.Exists(filePath))
{
throw new ArgumentException("无效文件，文件不存在!");
}
//WriteFile实现下载
string fileName = context.Request["fileName"]; //客户端保存的文件名
FileInfo fileInfo = new FileInfo(filePath);
context.Response.Clear();
context.Response.ClearContent();
context.Response.ClearHeaders();
context.Response.AddHeader("Content-Disposition", "attachment;filename=" + fileName);
context.Response.AddHeader("Content-Length", fileInfo.Length.ToString());
context.Response.AddHeader("Content-Transfer-Encoding", "binary");
context.Response.ContentType = "application/octet-stream";
context.Response.ContentEncoding = System.Text.Encoding.GetEncoding("gb2312");
context.Response.WriteFile(fileInfo.FullName);
context.Response.Flush();
context.Response.End();
}
#endregion
break;
}
}