我正在尝试运行此代码：
remoteProducts.ForEach(delegate(RemoteProduct p)
{
this.toolStripStatus.Text = "Downloading product: " + this.progress.Value + "/" + remoteProducts.Count;
try
{
prodLocalDao.addProduct(p.Id, p.Category, p.SubCategory, p.Sku);
int localProductId = p.Id;
List<ProductAttribute> attributes = prodRemoteDao.getProductAttributesByProductId(p.Id);
for (int i = 0; i < attributes.Count; i++)
{
prodLocalDao.addAttribute(localProductId, attributes[i].Id, attributes[i].Name, attributes[i].Value);
}
// Add photos
ArrayList photos = prodRemoteDao.getPhotosFromRemoteByProductId(p.Id);
DirectoryInfo directory = new DirectoryInfo(String.Format("photos\\{0}\\", p.Id));
if (!directory.Exists) directory.Create();
for (int i = 0; i < photos.Count; i++)
{
FileInfo file = new FileInfo(photos[i].ToString());
this.DownloadFTP(photos[i].ToString(), directory.FullName + file.Name);
}
this.toolStripStatus.Text += "... Done";
}
catch
{
this.toolStripStatus.Text += "... Skiped";
}
this.progress.Value++;
this.Refresh();
});
它会正确下载第一个产品的图像，但是当它尝试为第二个产品运行此行时：
prodLocalDao.addProduct(p.Id, p.Category, p.SubCategory, p.Sku);
它崩溃了我的应用程序，说vhost已停止工作，这些是它显示的详细信息：
问题签名：问题事件 名称：APPCRASH应用程序 名称：桌面管理器.vshost.exe
应用版本：9.0.21022.8
申请时间戳：47316898
故障模块名称：winhttp.dll故障 模块版本：6.1.7600.16385故障 模块时间戳：4a5bdb3e异常 代码：c0000005例外 偏移量：000015cb OS 版本：6.1.7600.2.0.0.256.1区域设置 ID：1033附加信息 1：0a9e附加信息 2：0a9e372d3b4ad19135b953a78882e789
附加信息3：0a9e
附加信息 4：0a9e372d3b4ad19135b953a78882e789在线阅读我们的隐私声明：
http://go.microsoft.com/fwlink/?linkid=104288&clcid=0x0409如果没有在线隐私声明 可用，请阅读我们的隐私 离线声明：
C：\ WINDOWS \ SYSTEM32 \ EN-US \ erofflps.txt
DownloadFtp功能
public void DownloadFTP(string RemotePath, string LocalPath)
{
BasicFTPClient MyClient = new BasicFTPClient();
MyClient.Host = Desktop_Manager.Properties.Settings.Default["ftphost"].ToString();
MyClient.Username = Desktop_Manager.Properties.Settings.Default["ftpuser"].ToString();
MyClient.Password = Desktop_Manager.Properties.Settings.Default["ftppass"].ToString();
string remotePath = String.Format("/media/catalog/product{0}", RemotePath);
MyClient.DownloadFile(remotePath, LocalPath);
}
现在是BasicFTPClient类
using System;
using System.Net;
using System.IO;
namespace BasicFTPClientNamespace
{
class BasicFTPClient
{
public string Username;
public string Password;
public string Host;
public int Port;
public BasicFTPClient()
{
Username = "anonymous";
Password = "anonymous@internet.com";
Port = 21;
Host = "";
}
public BasicFTPClient(string theUser, string thePassword, string theHost)
{
Username = theUser;
Password = thePassword;
Host = theHost;
Port = 21;
}
private Uri BuildServerUri(string Path)
{
return new Uri(String.Format("ftp://{0}:{1}/{2}", Host, Port, Path));
}
/// <summary>
/// This method downloads the given file name from the FTP server
/// and returns a byte array containing its contents.
/// Throws a WebException on encountering a network error.
/// </summary>
public byte[] DownloadData(string path)
{
// Get the object used to communicate with the server.
WebClient request = new WebClient();
// Logon to the server using username + password
request.Credentials = new NetworkCredential(Username, Password);
return request.DownloadData(BuildServerUri(path));
}
/// <summary>
/// This method downloads the FTP file specified by "ftppath" and saves
/// it to "destfile".
/// Throws a WebException on encountering a network error.
/// </summary>
public void DownloadFile(string ftppath, string destfile)
{
// Download the data
byte[] Data = DownloadData(ftppath);
// Save the data to disk
FileStream fs = new FileStream(destfile, FileMode.Create);
fs.Write(Data, 0, Data.Length);
fs.Close();
}
/// <summary>
/// Upload a byte[] to the FTP server
/// </summary>
/// <param name="path">Path on the FTP server (upload/myfile.txt)</param>
/// <param name="Data">A byte[] containing the data to upload</param>
/// <returns>The server response in a byte[]</returns>
public byte[] UploadData(string path, byte[] Data)
{
// Get the object used to communicate with the server.
WebClient request = new WebClient();
// Logon to the server using username + password
request.Credentials = new NetworkCredential(Username, Password);
return request.UploadData(BuildServerUri(path), Data);
}
/// <summary>
/// Load a file from disk and upload it to the FTP server
/// </summary>
/// <param name="ftppath">Path on the FTP server (/upload/myfile.txt)</param>
/// <param name="srcfile">File on the local harddisk to upload</param>
/// <returns>The server response in a byte[]</returns>
public byte[] UploadFile(string ftppath, string srcfile)
{
// Read the data from disk
FileStream fs = new FileStream(srcfile, FileMode.Open);
byte[] FileData = new byte[fs.Length];
int numBytesToRead = (int)fs.Length;
int numBytesRead = 0;
while (numBytesToRead > 0)
{
// Read may return anything from 0 to numBytesToRead.
int n = fs.Read(FileData, numBytesRead, numBytesToRead);
// Break when the end of the file is reached.
if (n == 0) break;
numBytesRead += n;
numBytesToRead -= n;
}
numBytesToRead = FileData.Length;
fs.Close();
// Upload the data from the buffer
return UploadData(ftppath, FileData);
}
}
}
任何想法为什么?? !!
感谢...