1.判断ip、端口是否可连接
public static boolean isHostConnectable(String host, int port) { Socket socket = new Socket(); try { socket.connect(new InetSocketAddress(host, port)); } catch (IOException e) { e.printStackTrace(); return false; } finally { try { socket.close(); } catch (IOException e) { e.printStackTrace(); } } return true; }
2.判断ip是否可以连接 timeOut是超时时间
public static boolean isHostReachable(String host, Integer timeOut) { try { return InetAddress.getByName(host).isReachable(timeOut); } catch (UnknownHostException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } return false; }