/// <summary>
/// HFS获取文件/下载文件
/// </summary>
/// <param name="DownLoadFile"></param>
/// <returns></returns>
public static bool HFSHttpGetFile(HFSDownLoadFileInfo DownLoadFile)
{
bool bolResult = true;
string Temp_strSaveFolder = Path.GetDirectoryName(DownLoadFile.SaveName);
Common.CreateFolder(Temp_strSaveFolder);
string Temp_strDownLoadUrl = DownLoadFile.DownName;
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(Temp_strDownLoadUrl);
request.Timeout = 5000;
try
{
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
long Temp_lngTotal = response.ContentLength;
using (Stream st = response.GetResponseStream())
{
using (Stream so = new FileStream(DownLoadFile.SaveName, FileMode.Create))
{
long Temp_lngDownTotal = 0;
byte[] buffer = new byte[4096];
int intOSize = st.Read(buffer, 0, (int)buffer.Length);
while (intOSize > 0)
{
Temp_lngDownTotal += intOSize;
so.Write(buffer, 0, intOSize);
intOSize = st.Read(buffer, 0, (int)buffer.Length);
}
}
}
}
catch
{
//如果404 会产生异常
bolResult = false;
}
return(bolResult);
}
/// <summary>
/// 获取URL的文件列表
/// </summary>
/// <param name="url"></param>
/// <param name="savePath"></param>
public static List <HFSDownLoadFileInfo> HFSHttpGetFileNameList(string strUrl)
{
List <HFSDownLoadFileInfo> result = new List <HFSDownLoadFileInfo>();
WebClient MyWebClient = new WebClient();
MyWebClient.Credentials = CredentialCache.DefaultCredentials; //获取或设置用于向Internet资源的请求进行身份验证的网络凭据
Byte[] pageData = MyWebClient.DownloadData(strUrl); //从指定网站下载数据
//string pageHtml = System.Text.Encoding.GetEncoding("GB2312").GetString(pageData);
//string pageHtml = Encoding.Default.GetString(pageData); //如果获取网站页面采用的是GB2312，则使用这句
string pageHtml = Encoding.UTF8.GetString(pageData); //如果获取网站页面采用的是UTF-8，则使用这句
//获取表格信息
int tbStartIndex = pageHtml.IndexOf("<table id='files'>");
int tbEndIndex = pageHtml.IndexOf("</table>") + 8;
int tbLength = tbEndIndex - tbStartIndex;
if (tbStartIndex > -1)
{
//无文件信息;
string strTb = pageHtml.Substring(tbStartIndex, tbLength);
string[] fileInfos = strTb.Split(Environment.NewLine.ToCharArray());//换行分割
List <string> fileNames = new List <string>();
foreach (string s in fileInfos)
{
if (string.IsNullOrEmpty(s))
{
continue;
}
if (!s.Trim().StartsWith("<a href=")) //<a>标签
{
continue;
}
if (!(s.Trim().IndexOf("<img src") != -1))//有前置小图标 下载文件
{
continue;
}
string saveFileName = "";
string downLoadUrlName = "";
string strTransition = ""; //过渡变量，便于字符串截取
strTransition = s.Substring(0, s.IndexOf("</a>"));
saveFileName = strTransition.Substring(strTransition.LastIndexOf(">") + 2); //网页中文件名称前面会有一个空格字符
int downLoadUrlStartIndex = s.IndexOf("href=") + 6;
int downLoadUrlEndIndex = s.IndexOf('"' + ">");
int downLoadUrlNameLength = downLoadUrlEndIndex - downLoadUrlStartIndex;
//下载地址url
downLoadUrlName = s.Substring(downLoadUrlStartIndex, downLoadUrlNameLength);
string[] temp = s.Split('>');
string Temp_strSaveName = temp[2].Replace("</a", "").Trim();
//if (downLoadUrlName.LastIndexOf(".") == -1)
if (downLoadUrlName.EndsWith("/"))
{
//文件夹 递归
List <HFSDownLoadFileInfo> Temp_Result = HFSHttpGetFileNameList(strUrl + "\\" + Temp_strSaveName);
foreach (HFSDownLoadFileInfo ss in Temp_Result)
{
//result.Add(downLoadUrlName + "/" + ss);
result.Add(new HFSDownLoadFileInfo
{
SaveName = Temp_strSaveName + "/" + ss.SaveName,
DownName = Temp_strSaveName + "/" + ss.DownName,
});
}
}
else
{
HFSDownLoadFileInfo Temp_HFSFileInfo = new HFSDownLoadFileInfo
{
SaveName = saveFileName,
DownName = downLoadUrlName
};
result.Add(Temp_HFSFileInfo);
}
}
}
return(result);
}