當連接webservice的客戶端需要代理驗證時的解決方法-优快云博客

本文介绍了一种通过自定义代理认证方式解决因代理问题导致的异常情况的方法。当使用默认代理获取用户信息失败时，程序会弹出自定义窗口让用户输入代理账号密码，并利用这些信息再次尝试获取用户信息。

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try
{
Authority authority = new Authority();
System.Net.IWebProxy theProxy = System.Net.WebRequest.DefaultWebProxy;
authority.Proxy = theProxy;
xmlNode = authority.GetUserInfoByNameAndSerialnumber(this.CertName, this.SerialNumber);
authority = null;
}
catch (Exception e)
{
string errorMsg = e.Message;
int count = 3;//三次輸入錯誤則退出
while (count > 0)
{
if (errorMsg.Contains("Proxy"))//如果是因為proxy問題導致exception
{
count--;

try
{
ProxyAuthenticate proxyAuthenticate = new ProxyAuthenticate(WebProxy.GetDefaultProxy().Address.Host);//ProxyAuthenticate為自定義的賬密輸入框
if (proxyAuthenticate.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
Authority authority = new Authority();
System.Net.IWebProxy theProxy = System.Net.WebRequest.DefaultWebProxy;
authority.Proxy = theProxy;
authority.Proxy.Credentials = new System.Net.NetworkCredential(proxyAuthenticate.GetUser(), proxyAuthenticate.GetPassword());
xmlNode = authority.GetUserInfoByNameAndSerialnumber(this.CertName, this.SerialNumber);
authority = null;
break;
}
}
catch (Exception ex)
{
errorMsg = ex.Message;
}
}
else
{
throw new Exception(errorMsg);
}
}
}