/// <summary>
/// 得到子目录和路径中文件，在枚举中使用所有文件夹
/// 当运行FTP LIST 协议方法得到详细的文件列表。
/// 在一个FTP服务器上，服务器响应许多信息记录，每个记录代表一个文件
/// </summary>
public IEnumerable <FTPFileSystem> GetSubDirectoriesAndFiles(Uri url)
{
FtpWebRequest request = WebRequest.Create(url) as FtpWebRequest;
request.Credentials = this.Credentials;
request.Method = WebRequestMethods.Ftp.ListDirectoryDetails;
FtpWebResponse response = null;
Stream responseStream = null;
StreamReader reader = null;
try
{
response = request.GetResponse() as FtpWebResponse;
this.OnNewMessageArrived(new NewMessageEventArg
{
NewMessage = response.StatusDescription
});
responseStream = response.GetResponseStream();
reader = new StreamReader(responseStream);
List <FTPFileSystem> subDirs = new List <FTPFileSystem>();
string subDir = reader.ReadLine();
//从记录字符串中找出FTP目录列表格式
FTPDirectoryListingStyle style = FTPDirectoryListingStyle.MSDOS;
if (!string.IsNullOrEmpty(subDir))
{
style = FTPFileSystem.GetDirectoryListingStyle(subDir);
}
while (!string.IsNullOrEmpty(subDir))
{
subDirs.Add(FTPFileSystem.ParseRecordString(url, subDir, style));
subDir = reader.ReadLine();
}
return(subDirs);
}
finally
{
if (response != null)
{
response.Close();
}
//关闭StreamReader对象和相关流，释放reader系统资源
if (reader != null)
{
reader.Close();
}
}
}
/// <summary>
/// Get the sub directories and files of the Url. It will be used in enumerate
/// all the folders.
/// When run the FTP LIST protocol method to get a detailed listing of the files
/// on an FTP server, the server will response many records of information. Each
/// record represents a file.
/// </summary>
public IEnumerable <FTPFileSystem> GetSubDirectoriesAndFiles(Uri url)
{
FtpWebRequest request = WebRequest.Create(url) as FtpWebRequest;
request.Credentials = this.Credentials;
request.Method = WebRequestMethods.Ftp.ListDirectoryDetails;
FtpWebResponse response = null;
Stream responseStream = null;
StreamReader reader = null;
try
{
response = request.GetResponse() as FtpWebResponse;
this.OnNewMessageArrived(new NewMessageEventArg
{
NewMessage = response.StatusDescription
});
responseStream = response.GetResponseStream();
reader = new StreamReader(responseStream);
List <FTPFileSystem> subDirs = new List <FTPFileSystem>();
string subDir = reader.ReadLine();
// Find out the FTP Directory Listing Style from the recordString.
FTPDirectoryListingStyle style = FTPDirectoryListingStyle.MSDOS;
if (!string.IsNullOrEmpty(subDir))
{
style = FTPFileSystem.GetDirectoryListingStyle(subDir);
}
while (!string.IsNullOrEmpty(subDir))
{
subDirs.Add(FTPFileSystem.ParseRecordString(url, subDir, style));
subDir = reader.ReadLine();
}
return(subDirs);
}
finally
{
if (response != null)
{
response.Close();
}
// Close the StreamReader object and the underlying stream, and release
// any system resources associated with the reader.
if (reader != null)
{
reader.Close();
}
}
}