java 查看端口状态 java查看端口占用

public static void main(String[] args) { boolean flag=false; flag=isPortAvailable(ReadPropertiesUtil.OpenOffice_PORT); if(flag){ System.out.println("未被占用"); }else{ System.out.println("已占有"); } } /** * 查看端口是否被占用 * @param port * @return */ @SuppressWarnings("unused") public static boolean isPortAvailable(int port) { Socket s = new Socket(); boolean flag=false; String f=""; List ipList=new ArrayList(); try { Enumeration netInterfaces = NetworkInterface .getNetworkInterfaces(); while (netInterfaces.hasMoreElements()) { NetworkInterface nif = netInterfaces.nextElement(); Enumeration iparray = nif.getInetAddresses(); while (iparray.hasMoreElements()) { ipList.add(iparray.nextElement().getHostAddress()); } } for (int i = 0; i < ipList.size(); i++) { flag=bindPort(ipList.get(i), port); if(!flag){ break; } } if(flag){//未被占用 return true; }else{//已被占用 return false; } } catch (Exception e) { return false; } } /** * 查看是否能绑定ip端口 * @param host * @param port * @return * @throws Exception */ @SuppressWarnings("finally") private static Boolean bindPort(String host, int port) throws Exception { boolean flag=false; try { Socket s = new Socket(); s.bind(new InetSocketAddress(host, port)); s.close(); flag=true; } catch (Exception e) { flag=false; e.printStackTrace(); } finally{ return flag; } }