Question

我需要使用socks 4代理调用服务器。我在java版本1.6上。

如果我们使用类似的东西，那么它会将SOCKS代理视为版本5.

 URL url = new URL("https://www.google.com");  
 URLConnection connection = null;  
 SocketAddress proxySocketAddress1 =  new InetSocketAddress("XXXXXXXXXX", 8081);  
 Proxy proxy = new Proxy(Proxy.Type.SOCKS, proxySocketAddress1);  
 connection = url.openConnection(proxy);  
 connection.setConnectTimeout(150000);  
 connection.connect();

我可以通过

在系统级别设置socks代理

// Set SOCKS proxy
System.getProperties().put( "socksProxyHost","xxxxx");
System.getProperties().put( "socksProxyPort","1234");
System.getProperties().put("socksProxyVersion","4");

当我这样做时，我能够到达服务器

connection = url.openConnection();

但我的其他连接如连接到db，加密服务器也通过代理并失败。

我也试过从系统代理中排除服务器但没有成功。

System.getProperties().put("socksnonProxyHosts","*.net");
System.getProperties().put("http.nonProxyHosts","*.net");

我还有其他方法可以选择在java 1.6中使用SOCKS4。

Answer 1

这是SocksSocketImpl实施中的错误：

JDK-6964547 : Impossible to set useV4 in SocksSocketImpl

Answer 2

这是我尝试过的，看起来它正在发挥作用。基本上我需要SOCKS4代理连接到套接字。

SocketAddress socketAddress =  new InetSocketAddress("proxyhost",proxyport);
Proxy socketProxy =  new Proxy(Proxy.Type.SOCKS, socketAddress);

Socket  socket = new Socket(socketProxy); 
Class clazzSocks  = socket.getClass();
Method setSockVersion  = null;
Field sockImplField = null; 
SocketImpl socksimpl = null; 
 try {
    sockImplField = clazzSocks.getDeclaredField("impl");
    sockImplField.setAccessible(true);
    socksimpl  = (SocketImpl) sockImplField.get(socket);
    Class clazzSocksImpl  =  socksimpl.getClass();
    setSockVersion  = clazzSocksImpl.getDeclaredMethod("setV4");
    setSockVersion.setAccessible(true);
    if(null != setSockVersion){
        setSockVersion.invoke(socksimpl);
    }
    sockImplField.set(socket, socksimpl);
    } 
        catch (Exception e) {
      // TODO Auto-generated catch block
            e.printStackTrace();
    } 

String hostName="xxxxx";
int port=1080;
InetAddress address;        
SocketAddress socketAddress;            
address = InetAddress.getByName(hostName);
socketAddress = new InetSocketAddress(address, port);

// Connect to socket
socket.connect(socketAddress, 100000);

//setting the socket read() connection time out 
socket.setSoTimeout(100000);

请分享您的意见，对此方法的反馈。

使用Socks 4代理进行HTTP调用

2 个答案: