java网络访问指定出口ip

Socket socket = new Socket("127.0.0.1", 12345, InetAddress.getByAddress(new byte[] {                new Integer(10).byteValue(),                new Integer(211).byteValue(),                new Integer(55).byteValue(),                new Integer(2).byteValue(),        }), 1234);

byte b[] = new byte[4];b[0] = new Integer(10).byteValue();b[1] = new Integer(211).byteValue();b[2] = new Integer(55).byteValue();b[3] = new Integer(2).byteValue();CloseableHttpResponse response = null;CloseableHttpClient httpclient = HttpClients.createDefault();HttpGet httpget = new HttpGet("http://localhost:8080/TestServlet");httpget.setConfig(RequestConfig.custom()        .setLocalAddress(InetAddress.getByAddress(b))        .build());