如何理解.NET Remoting中的Proxy设定

 

如何理解.NET Remoting中的Proxy设定

在.NET中，与Proxy相关的类有以下几个，

通用的类：

System.Net.WebProxy,

System.Net.GlobalProxySelection,

可以用下面的方法设定，通用的Proxy

string proxyserver = “192.168.2.1”;

int proxyport = 8080;

string ProxyUserName = “zs03”;

string ProxyUserName = “mypass”;

string ProxyDomain = “myDomain”;

WebProxy proxy = new WebProxy(proxyserver, proxyport);

NetworkCredential credentials = new NetworkCredential(ProxyUserName,

ProxyPassword,ProxyDomain);

proxy.Credentials = credentials;

GlobalProxySelection.Select = proxy;

同时，ChannelHttpClient中，也可以设定Proxy, 比如可以用下面一段代码来设定ChannelHttpclient的Proxy,

string proxyserver = “192.168.2.1”;

int proxyport = 8080;

string ProxyUserName = “zs03”;

string ProxyUserName = “mypass”;

string ProxyDomain = “myDomain”;

NetworkCredential credentials = new NetworkCredential(ProxyUserName, ProxyPassword, ProxyDomain);

Hashtable hash = new Hashtable();

hash.Add("credentials",credentials);

hash.Add("proxyName",proxyserver);

hash.Add("proxyPort",proxyport);

ChannelHttpClient = new HttpClientChannel(hash,new BinaryClientFormatterSinkProvider());

ChannelServices.RegisterChannel(ChannelHttpClient);

一般来说，GlobalProxySelection用来确定在默认的情况下，Proxy的设定的情况，如果不进行设定的话，一般系统会自动取确省的设置

那怎样才能把确省的设制去掉呢？

对于通用的设置，可以用下面的方法：

GlobalProxySelection.Select = GlobalProxySelection.GetEmptyWebProxy();

对于ChannelHttpClient的话可以用：

ChannelHttpClient = new HttpClientChannel("http",new BinaryClientFormatterSinkProvider());

ChannelHttpClient.Properties["ProxyName"] = null;

ChannelServices.RegisterChannel(ChannelHttpClient);

如果采用配置文件的话, 一般只用配置WebProxy就可以了, 如果要自己定义Remoting Channel的话则要定义ChannelHttpClient的Proxy

注: 一般的错误信息如下:

The remote server returned an error: (407) Proxy Authentication Required.