NetUtils { public static boolean isValidAddress(String address) { return ADDRESS_PATTERN.matcher(address).matches(); }  static int getRandomPort(); static int getAvailablePort(); static int getAvailablePort(int port); static boolean isInvalidPort(int port); static boolean isValidAddress(String address); static boolean isLocalHost(String host); static boolean isAnyHost(String host); static boolean isInvalidLocalHost(String host); static boolean isValidLocalHost(String host); static InetSocketAddress getLocalSocketAddress(String host, int port); static String getLocalHost(); static String filterLocalHost(String host); static InetAddress getLocalAddress(); static String getHostName(String address); static String getIpByHost(String hostName); static String toAddressString(InetSocketAddress address); static InetSocketAddress toAddress(String address); static String toURL(String protocol, String host, int port, String path); static final String LOCALHOST; static final String ANYHOST; }
@Test public void testValidAddress() throws Exception { assertTrue(NetUtils.isValidAddress("10.20.130.230:20880")); assertFalse(NetUtils.isValidAddress("10.20.130.230")); assertFalse(NetUtils.isValidAddress("10.20.130.230:666666")); }