控制WebRequest代理

一时失言乱红尘 2021-12-21 16:11 128阅读 0赞

> private void ProxySetting(WebRequest request)  
> \{  
> WebProxy proxy = WebProxy.GetDefaultProxy();//获取IE缺省设置 //如果缺省设置为空，则有可能是根本不需要代理服务器，如果此时配置文件中也未配置则认为不需Proxy  
> if (proxy.Address == null)//按配置文件创建Proxy 地置  
> \{  
> string address = "http://"+ConfigurationUtil.ProxyAddress \+ ":" + ConfigurationUtil.ProxyPort;  
> proxy.Address = new Uri(address);  
> \}  
>   
> if (proxy.Address != null)//如果地址为空，则不需要代理服务器  
> \{  
> proxy.Credentials = new NetworkCredential(ConfigurationUtil.UserName, ConfigurationUtil.Password);//从配置封装参数中创建  
> request.Proxy = proxy;//赋予 request.Proxy  
> \}  
> \}

调用：

> if (!string.IsNullOrEmpty(ConfigurationUtil.IsProxy)  
> && Convert.ToBoolean(ConfigurationUtil.IsProxy))  
> 
> 
> \{  
> ProxySetting(request);  
> \}

获取配置：

> internal class ConfigurationUtil  
> \{  
> public static string IsProxy  
> \{  
> get  
> \{  
> if (string.IsNullOrEmpty(\_IsProxy))  
> \{  
> \_IsProxy = ConfigurationManager.AppSettings\["IsProxy"\];  
> \}  
> return \_IsProxy;  
> \}  
> \}
> 
> public static string ProxyAddress  
> \{  
> get  
> \{  
> if (string.IsNullOrEmpty(\_proxyAddress))  
> \{  
> \_proxyAddress = ConfigurationManager.AppSettings\["ProxyAddress"\];  
> \}  
> return \_proxyAddress;  
> \}  
> \}
> 
> public static string ProxyPort  
> \{  
> get  
> \{  
> if (string.IsNullOrEmpty(\_proxyPort))  
> \{  
> \_proxyPort = ConfigurationManager.AppSettings\["ProxyPort"\];  
> \}  
> return \_proxyPort;  
> \}  
> \}
> 
> public static string UserName  
> \{  
> get  
> \{  
> if (string.IsNullOrEmpty(\_userName))  
> \{  
> \_userName = ConfigurationManager.AppSettings\["UserName"\];  
> \}  
> return \_userName;  
> \}  
> \}
> 
> public static string Password  
> \{  
> get  
> \{  
> if (string.IsNullOrEmpty(\_password))  
> \{  
> \_password = ConfigurationManager.AppSettings\["Password"\];  
> \}  
> return \_password;  
> \}  
> \}
> 
> private static string \_proxyAddress;  
> private static string \_proxyPort;  
> private static string \_userName;  
> private static string \_password;  
> private static string \_IsProxy;  
> \}

配置文件：

> <?xml version="1.0" encoding="utf-8"?>  
> <appSettings>  
> <add key="IsProxy" value="False"/>  
> <add key="ProxyAddress" value="192.168.1.222"/>  
> <add key="ProxyPort" value="8080"/>  
> <add key="UserName" value="xxxx"/>  
> <add key="Password" value="123"/>  
> </appSettings>  
>

Post:

> protected string DoHttpPostAction(string url, string xml)  
> \{  
> string result = null;
> 
> Encoding encoding = Encoding.UTF8;  
> byte\[\] postData = encoding.GetBytes(xml);
> 
> HttpWebRequest request =  
> (System.Net.HttpWebRequest)System.Net.HttpWebRequest.Create(url);
> 
> \_log.DebugFormat("请求Ucp Url:\{0\} xml:\{1\}\{2\}", url, Environment.NewLine, xml);
> 
> request.Method = "POST";  
> request.UserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; SV1; POTU(RR:27062616:0:5076910); .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.590; .NET CLR 3.5.20706; MAXTHON 2.0)";  
> request.ContentType = "application/x-www-form-urlencoded";  
> request.ContentLength = postData.Length;
> 
> if (!string.IsNullOrEmpty(ConfigurationUtil.IsProxy)  
> && Convert.ToBoolean(ConfigurationUtil.IsProxy))  
> \{  
> ProxySetting(request);  
> \}  
> else  
> \{  
> request.Proxy = null;  
> \}  
> request.Timeout = 10000;  
> try  
> \{  
> Stream newStream = request.GetRequestStream();  
> newStream.Write(postData, 0, postData.Length);  
> newStream.Close();
> 
> HttpWebResponse response;  
> response = (HttpWebResponse)request.GetResponse();
> 
> if (response.StatusCode == HttpStatusCode.OK)  
> \{  
> StreamReader reader = new StreamReader(response.GetResponseStream(),  
> Encoding.UTF8);  
> result = reader.ReadToEnd();  
> reader.Close();  
> response.Close();  
> \}  
> \}  
> catch (WebException ex)  
> \{
> 
>   
> \}  
> finally  
> \{  
> request.Abort();  
> \}
> 
> return result;  
> \}

转载于:https://www.cnblogs.com/ruanzb/archive/2011/04/26/2029663.html