直接上代码
``` import org.apache.commons.lang.text.StrTokenizer; import org.apache.commons.lang3.StringUtils; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import java.net.InetAddress; import java.net.NetworkInterface; import java.net.UnknownHostException; import java.util.Enumeration; import java.util.regex.Pattern; import javax.servlet.http.HttpServletRequest; /** * ClassName: IpUtil * @Description: user-agent * user-agent 值可参考以下值 * https://blog.csdn.net/u012175089/article/details/61199238/ * @author JornTang * @email [email protected] * @date 2017年8月17日 */ public class IpUtil { private static final Logger logger = LoggerFactory.getLogger(IpUtil.class); public static final String _255 = "(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)"; public static final Pattern pattern = Pattern.compile("^(?:" + _255 + "\\.){3}" + _255 + "$"); private static final String ANYHOST = "0.0.0.0"; private static final String LOCALHOST = "127.0.0.1"; public static final Pattern IP_PATTERN = Pattern.compile("\\d{1,3}(\\.\\d{1,3}){3,5}$"); private static volatile InetAddress LOCAL_ADDRESS = null; /** * 访问来源 */ public static String ipFrom(HttpServletRequest request){ String requestHeader = request.getHeader("user-agent"); if(StringUtils.isEmpty(requestHeader)) { return "未知来源"; } requestHeader = requestHeader.toLowerCase(); // 苹果 String[] macDeviceArr = new String[] {"mac os", "ipad", "ipod", "iphone"}; for(int i = 0; i< macDeviceArr.length; i++) { if(requestHeader.indexOf(macDeviceArr[i]) > 0) { return "苹果"; } } // 安卓 String[] androidDeviceArr = new String[] {"android", "adr"}; for(int i = 0; i< androidDeviceArr.length; i++) { if(requestHeader.indexOf(androidDeviceArr[i]) > 0) { return "安卓"; } } // 其他移动端 String[] othDeviceArr = new String[] {"mobile", "windows phone", "windows ce"}; for(int i = 0; i< othDeviceArr.length; i++) { if(requestHeader.indexOf(othDeviceArr[i]) > 0) { return "其他移动端"; } } return "PC端"; } /** * 终端名称 */ public static String terminal(HttpServletRequest request){ String requestHeader = request.getHeader("user-agent"); if(StringUtils.isEmpty(requestHeader)) { return "未知终端"; } requestHeader = requestHeader.toLowerCase(); // ipad String[] ipadDeviceArr = new String[] {"ipad", "ipod"}; for(int i = 0; i< ipadDeviceArr.length; i++) { if(requestHeader.indexOf(ipadDeviceArr[i]) > 0) { return "ipad"; } } // 手机 String[] mobileDeviceArr = new String[] {"android", "adr", "iphone", "mobile", "windows phone", "windows ce"}; for(int i = 0; i< mobileDeviceArr.length; i++) { if(requestHeader.indexOf(mobileDeviceArr[i]) > 0) { return "手机"; } } // 电脑 String[] pcDeviceArr = new String[] {"windowsnt", "windows nt"}; for(int i = 0; i< pcDeviceArr.length; i++) { if(requestHeader.indexOf(pcDeviceArr[i]) > 0) { return "电脑"; } } return "其他"; } /** * 浏览器类型 */ public static String browser(HttpServletRequest request){ String requestHeader = request.getHeader("user-agent"); if(StringUtils.isEmpty(requestHeader)) { return "未知来源"; } requestHeader = requestHeader.toLowerCase(); String[] browserArr = new String[] {"msie", "firefox", "chrome", "opera", "safari", "360se", "ucweb", "qqbrowser", "tencenttraveler"}; for(int i = 0; i< browserArr.length; i++) { if(requestHeader.indexOf(browserArr[i]) > 0) { return browserArr[i]; } } return "其他浏览器"; } /** * valid address * @param address * @return */ private static boolean isValidAddress(InetAddress address) { if (address == null || address.isLoopbackAddress()) return false; String name = address.getHostAddress(); return (name != null && ! ANYHOST.equals(name) && ! LOCALHOST.equals(name) && IP_PATTERN.matcher(name).matches()); } /** * get first valid addredd * @return */ private static InetAddress getFirstValidAddress() { InetAddress localAddress = null; try { localAddress = InetAddress.getLocalHost(); if (isValidAddress(localAddress)) { return localAddress; } } catch (Throwable e) { logger.error("Failed to retriving ip address, " + e.getMessage(), e); } try { Enumeration interfaces = NetworkInterface.getNetworkInterfaces(); if (interfaces != null) { while (interfaces.hasMoreElements()) { try { NetworkInterface network = interfaces.nextElement(); Enumeration addresses = network.getInetAddresses(); if (addresses != null) { while (addresses.hasMoreElements()) { try { InetAddress address = addresses.nextElement(); if (isValidAddress(address)) { return address; } } catch (Throwable e) { logger.error("Failed to retriving ip address, " + e.getMessage(), e); } } } } catch (Throwable e) { logger.error("Failed to retriving ip address, " + e.getMessage(), e); } } } } catch (Throwable e) { logger.error("Failed to retriving ip address, " + e.getMessage(), e); } logger.error("Could not get local host ip address, will use 127.0.0.1 instead."); return localAddress; } /** * get address * @return */ private static InetAddress getAddress() { if (LOCAL_ADDRESS != null) return LOCAL_ADDRESS; InetAddress localAddress = getFirstValidAddress(); LOCAL_ADDRESS = localAddress; return localAddress; } /** * 获取当前网络ip * @param request * @return */ public static String getIpAddr(HttpServletRequest request){ String ipAddress = request.getHeader("x-forwarded-for"); if(ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) { ipAddress = request.getHeader("Proxy-Client-IP"); } if(ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) { ipAddress = request.getHeader("WL-Proxy-Client-IP"); } if(ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) { ipAddress = request.getRemoteAddr(); if(ipAddress.equals("127.0.0.1") || ipAddress.equals("0:0:0:0:0:0:0:1")){ //根据网卡取本机配置的IP InetAddress inet=null; try { inet = InetAddress.getLocalHost(); } catch (UnknownHostException e) { e.printStackTrace(); } ipAddress= inet.getHostAddress(); } } //对于通过多个代理的情况，第一个IP为客户端真实IP,多个IP按照','分割 if(ipAddress!=null && ipAddress.length()>15){ //"***.***.***.***".length() = 15 if(ipAddress.indexOf(",")>0){ ipAddress = ipAddress.substring(0,ipAddress.indexOf(",")); } } return ipAddress; } /** * get ip * @return */ public static String getIp(){ InetAddress address = getAddress(); if (address==null) { return null; } return address.getHostAddress(); } /** * get ip:port * @param port * @return */ public static String getIpPort(int port){ String ip = getIp(); if (ip==null) { return null; } return ip.concat(":").concat(String.valueOf(port)); } public static void main(String[] args) throws UnknownHostException { System.out.println(getFirstValidAddress()); System.out.println(getIpPort(8080)); } public static String longToIpV4(long longIp) { int octet3 = (int) ((longIp >> 24) % 256); int octet2 = (int) ((longIp >> 16) % 256); int octet1 = (int) ((longIp >> 8) % 256); int octet0 = (int) ((longIp) % 256); return octet3 + "." + octet2 + "." + octet1 + "." + octet0; } public static long ipV4ToLong(String ip) { String[] octets = ip.split("\\."); return (Long.parseLong(octets[0]) << 24) + (Integer.parseInt(octets[1]) << 16) + (Integer.parseInt(octets[2]) << 8) + Integer.parseInt(octets[3]); } public static boolean isIPv4Private(String ip) { long longIp = ipV4ToLong(ip); return (longIp >= ipV4ToLong("10.0.0.0") && longIp <= ipV4ToLong("10.255.255.255")) || (longIp >= ipV4ToLong("172.16.0.0") && longIp <= ipV4ToLong("172.31.255.255")) || longIp >= ipV4ToLong("192.168.0.0") && longIp <= ipV4ToLong("192.168.255.255"); } public static boolean isIPv4Valid(String ip) { return pattern.matcher(ip).matches(); } public static String getIpFromRequest(HttpServletRequest request) { String ip; boolean found = false; if ((ip = request.getHeader("x-forwarded-for")) != null) { StrTokenizer tokenizer = new StrTokenizer(ip, ","); while (tokenizer.hasNext()) { ip = tokenizer.nextToken().trim(); if (isIPv4Valid(ip) && !isIPv4Private(ip)) { found = true; break; } } } if (!found) { ip = request.getRemoteAddr(); } return ip; } /** * 获取用户IP地址 * * @param request * @return */ public static String getIpAddrs(final HttpServletRequest request) { String ip = request.getHeader("x-forwarded-for"); if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) { ip = request.getHeader("Proxy-Client-IP"); } if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) { ip = request.getHeader("WL-Proxy-Client-IP"); } if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) { ip = request.getRemoteAddr(); } if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) { ip = request.getHeader("http_client_ip"); } if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) { ip = request.getHeader("HTTP_X_FORWARDED_FOR"); } // 如果是多级代理，那么取第一个ip为客户ip if (ip != null && ip.indexOf(",") != -1) { ip = ip.substring(ip.lastIndexOf(",") + 1, ip.length()).trim(); } if (ip.indexOf("0:") != -1) { ip = "本地"; } StringBuffer sb=new StringBuffer(); sb.append(";x-forwarded-for:"+request.getHeader("x-forwarded-for")); sb.append(";Proxy-Client-IP:"+request.getHeader("Proxy-Client-IP")); sb.append(";WL-Proxy-Client-IP:"+request.getHeader("WL-Proxy-Client-IP")); sb.append("getRemoteAddr:"+request.getRemoteAddr()); sb.append(";http_client_ip:"+request.getHeader("http_client_ip")); sb.append(";HTTP_X_FORWARDED_FOR:"+request.getHeader("HTTP_X_FORWARDED_FOR")); // log.error("获取ip："+sb.toString()+"\n头部信息"); Enumeration he=request.getHeaderNames(); while(he.hasMoreElements()){ Object name=he.nextElement(); String value=request.getHeader(name.toString()); sb.append("header:"+name); sb.append("="+value+",headers:"); Enumeration e=request.getHeaders(name.toString()); while(e.hasMoreElements()){ sb.append((String ) e.nextElement()+"------"); } sb.append("\n"); } return ip; } } ``` `作者：[云软科技-档案管理系统](http://www.gzyrkj.net) JornTang (微信同号)`