/// <summary>
/// 上传文件
/// </summary>
/// <param name="file">FileUpload</param>
/// <param name="filePath">要保存的文件路径,</param>
/// <param name="lstFileType">允许上传的文件类型,大小,单位为KB,Size=0表示无任何限制</param>
/// <param name="fileName">自定义文件名称</param>
public stuUpLoadFile Upload(HttpPostedFile file, string filePath, string fileName,
List <stuUpLoadFileType> lstFileType = null)
{
var uploadFile = new stuUpLoadFile {
ErrorMessage = string.Empty
};
filePath = Url.ConvertPath(filePath);
if (!filePath.EndsWith("/"))
{
filePath += "/";
}
//判断根目录,保存目录是否为空
if (string.IsNullOrWhiteSpace(filePath))
{
uploadFile.ErrorMessage = "保存路径没有填写,请联系管理员!";
return(uploadFile);
}
// 检测上传文件的合法性
if (!CheckFile(file, ref uploadFile, lstFileType))
{
return(uploadFile);
}
#region 文件操作
try
{
#region 创建文件目录(任何级别目录)
var fileMapPath = Webs.GetMapPath(filePath); //获取目录绝对路径
Directory.CreateDirectory(fileMapPath);
#endregion
file.SaveAs(fileMapPath + fileName);
uploadFile.FileName = fileName;
uploadFile.FileNamePrefix = Path.GetFileNameWithoutExtension(fileName);
uploadFile.FileNameExtension = Path.GetExtension(fileName);
uploadFile.Size = file.ContentLength >= 1024 ? file.ContentLength / 1024 : 1;
uploadFile.FilePath = filePath;
uploadFile.FileMapPath = fileMapPath;
uploadFile.IsSuccess = true;
}
catch (Exception Ex)
{
uploadFile.IsSuccess = false;
uploadFile.ErrorMessage = Ex.Message;
return(uploadFile);
}
#endregion
return(uploadFile);
}
/// <summary>
/// Request.QueryString
/// </summary>
public static T QS <T>(string parmsName, T defValue = default(T))
{
if (HttpContext.Current == null)
{
return(defValue);
}
var value = HttpContext.Current.Request.RequestContext.RouteData.Values[parmsName] ?? string.Empty;
return(ConvertHelper.ConvertType(Webs.UrlDecode(value.ToString()), defValue));
}
/// <summary>
/// 以指定的流，向客户端输出
/// </summary>
/// <param name="fileStream"></param>
/// <param name="fileName"></param>
/// <param name="contentType">将文件输出时设置的ContentType</param>
public static void OutPut(FileStream fileStream, string fileName, string contentType = "application/octet-stream")
{
var response = HttpContext.Current.Response;
try
{
// 需要读的数据长度
var dataToRead = fileStream.Length;
response.ContentType = contentType;
response.AddHeader("Content-Disposition", "attachment;filename=" + Webs.UrlEncode(fileName).Replace("+", " "));
// 缓冲区为10k
var buffer = new Byte[10000];
while (dataToRead > 0)
{
// 检查客户端是否还处于连接状态
if (HttpContext.Current.Response.IsClientConnected)
{
var length = fileStream.Read(buffer, 0, 10000);
response.OutputStream.Write(buffer, 0, length);
response.Flush();
buffer = new Byte[10000];
dataToRead = dataToRead - length;
}
else
{
// 如果不再连接则跳出死循环
dataToRead = -1;
}
}
}
catch (Exception ex)
{
response.Write("Error : " + ex.Message);
}
finally
{
if (fileStream != null)
{
fileStream.Close();
}
response.End();
}
}
/// <summary>
/// Request.QueryString
/// </summary>
public static T QS <T>(string parmsName, T defValue)
{
return(HttpContext.Current == null ? defValue : ConvertHelper.ConvertType(Webs.UrlDecode(HttpContext.Current.Request.QueryString[parmsName] ?? string.Empty), defValue));
}
