这里提供的另一个解决方案:
https://groups.google.com/forum/#!topic/selenium-users/8eNRW9JnayQ
public static String[] getHostNameAndPort(String hostName, int port, SessionId session) {
String[] hostAndPort = new String[2];
String errorMsg = "Failed to acquire remote webdriver node and port info. Root cause: ";
try {
HttpHost host = new HttpHost(hostName, port);
DefaultHttpClient client = new DefaultHttpClient();
URL sessionURL = new URL("http://" + hostName + ":" + port + "/grid/api/testsession?session=" + session);
BasicHttpEntityEnclosingRequest r = new BasicHttpEntityEnclosingRequest("POST",
sessionURL.toExternalForm());
HttpResponse response = client.execute(host, r);
JSONObject object = extractObject(response);
URL myURL = new URL(object.getString("proxyId"));
if ((myURL.getHost() != null) && (myURL.getPort() != -1)) {
hostAndPort[0] = myURL.getHost();
hostAndPort[1] = Integer.toString(myURL.getPort());
}
} catch (Exception e) {
logger.log(Level.SEVERE, errorMsg, e);
throw new RuntimeException(errorMsg, e);
}
return hostAndPort;
}