/// <summary>
/// 显示文件
/// </summary>
/// <param name="filename"></param>
private void ShowFile(string filename, string name, RequestInfo request, ResponseInfo response)
{
FileInfo finf = new FileInfo(filename);
response.MimeType = WebCommon.GetContentType(finf.Extension.Trim('.'));
string strName = RequestInfo.GetFileName(request, name);
response.Header["Content-Disposition"] = "attachment;filename=" + strName;
long len = finf.Length;
response.Header["Accept-Ranges"] = "bytes";
response.Header["Content-Transfer-Encoding"] = "binary";
if (request.Header.ContainsKey("range")) //如果客户端指定了分段下载
{
List <RangeInfo> lstRange = ResponseInfo.GetRange(request.Header["Range"], finf.Length); //处理区段信息
if (lstRange.Count > 0)
{
response.Header["Content-Range"] = "bytes " + lstRange[0].Start + "-" + lstRange[0].End + "/" + finf.Length;//指定区段
response.StatusCode = 206;
}
}
try
{
response.UserTag = finf;
response.Length = len;
response.RangeLength = finf.Length;
}
catch (Exception ex)
{
response.Write("数据读取失败:" + ex.Message);
}
}
/// <summary>
/// 输出文件目录的下载列表
/// </summary>
/// <param name="curDir"></param>
/// <param name="request"></param>
/// <param name="url"></param>
/// <returns></returns>
private bool PutLst(string curDir, RequestInfo request, ResponseInfo response, string url)
{
DirectoryInfo dinfo = new DirectoryInfo(curDir);
if (dinfo.Exists)
{
string content = GetDictoryFiles(request, curDir, HttpUtility.HtmlDecode(url));
response.MimeType = WebCommon.GetContentType("*");
response.Header["Content-Disposition"] = "attachment;filename=" + HttpUtility.UrlEncode(dinfo.Name) + ".lst";
response.Header["Connection"] = "close";
response.Write(content);
return(true);
}
return(false);
}