/** * 获取本地IP地址 * @author YOLANDA * @return */public static String getLocalIPAddress() {String ipAddress = "";try {Enumeration<NetworkInterface> netfaces = NetworkInterface.getNetworkInterfaces();// 遍历所用的网络接口while (netfaces.hasMoreElements()) {NetworkInterface nif = netfaces.nextElement();// 得到每一个网络接口绑定的地址Enumeration<InetAddress> inetAddresses = nif.getInetAddresses();// 遍历每一个接口绑定的所有ipwhile (inetAddresses.hasMoreElements()) {InetAddress ip = inetAddresses.nextElement();if (!ip.isLoopbackAddress() && isIPv4Address(ip.getHostAddress())) {ipAddress = ip.getHostAddress();}}}} catch (SocketException e) {e.printStackTrace();}return ipAddress;}/*这里要加上一点说明，因为在21开始，HTTPClient被抛弃了，Google推荐使用URLConnect，这里的Ipv4也被抛弃了，为了兼容以后的版本，我把HTTPClient的一些源码直接拿到项目中来用，所以这里出现了Ipv4的检查的源码*//** * Ipv4地址检查 */private static final Pattern IPV4_PATTERN = Pattern.compile("^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$");/** * 检查是否是有效的IPV4地址 * @param input the address string to check for validity * @return true if the input parameter is a valid IPv4 address */public static boolean isIPv4Address(final String input) {return IPV4_PATTERN.matcher(input).matches();}/*===========以下是IPv6的检查，，暂时用不到==========*//*//未压缩过的IPv6地址检查private static final Pattern IPV6_STD_PATTERN = Pattern.compile("^[0-9a-fA-F]{1,4}(:[0-9a-fA-F]{1,4}){7}$");//检查参数是否有效的标准(未压缩的)IPv6地址public static boolean isIPv6StdAddress(final String input) {return IPV6_STD_PATTERN.matcher(input).matches();}//压缩过的IPv6地址检查private static final Pattern IPV6_HEX_COMPRESSED_PATTERN = Pattern.compile("^(([0-9A-Fa-f]{1,4}(:[0-9A-Fa-f]{1,4}){0,5})?)" + // 0-6 hex fields"::" +"(([0-9A-Fa-f]{1,4}(:[0-9A-Fa-f]{1,4}){0,5})?)$"); // 0-6 hex fields//检查参数是否有效压缩IPv6地址public static boolean isIPv6HexCompressedAddress(final String input) {int colonCount = 0;for(int i = 0; i < input.length(); i++) {if (input.charAt(i) == ':') {colonCount++;}}return colonCount <= 7 && IPV6_HEX_COMPRESSED_PATTERN.matcher(input).matches();}//检查是否是压缩或者未压缩过的IPV6地址public static boolean isIPv6Address(final String input) {return isIPv6StdAddress(input) || isIPv6HexCompressedAddress(input);}*/
旅行，其实是需要具有一些流浪精神的，
