下载网上资源并存储到本地

public void DownLoadConfigurationFile(string ID)
{
if (string.IsNullOrEmpty(ID))
{
string configFilePath = ConfigurationManager.AppSettings["Config"];
string MachineInfoNmae = "MachineInfo";
string machineIDAttrName = "MachineId";
XDocument xmlDoc = XDocument.Load(configFilePath);
XName xName = XName.Get(MachineInfoNmae, NameSpace);
ID = xmlDoc.Root.Element(xName).Attribute(machineIDAttrName).Value;
}

string productConfigurationFileURL = string.Format("{0}{1}?configurationType={2}", _configurationFileURL, ID, ProductConfigurationName);
string deviceConfigurationFileURL = string.Format("{0}{1}?configurationType={2}", _configurationFileURL, ID, DeviceConfigurationName);
string machineConfigurationFileURL = string.Format("{0}{1}?configurationType={2}", _configurationFileURL, ID, MachineConfigurationName);
ServicePointManager.ServerCertificateValidationCallback = RemoteCertificateValidationCallback;

SaveConfigurationFile(productConfigurationFileURL, ProductConfigurationName);
SaveConfigurationFile(deviceConfigurationFileURL, DeviceConfigurationName);
SaveConfigurationFile(machineConfigurationFileURL, MachineConfigurationName);
}

 

private void SaveConfigurationFile(string configurationFileURL, string configurationName)
{
using (HttpClient client = new HttpClient())
{
HttpResponseMessage response = client.Get(configurationFileURL);
if (response.StatusCode == HttpStatusCode.OK)
{
string responseXml = response.Content.ReadAsString();
XmlDocument newConfiguration = new XmlDocument();
newConfiguration.LoadXml(responseXml);
newConfiguration.Save(string.Format("{0}.xml", configurationName));
}
}
}

 

 

/// <summary>
/// SSL Validation Return True forever.
/// </summary>
/// <returns>True</returns>
public bool RemoteCertificateValidationCallback(Object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors sslPolicyErrors)
{
return true;
}