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本机ip
public static String getIpAddr(HttpServletRequest request) {if (request == null) {return null;}String ip = null;// X-Forwarded-For：Squid 服务代理String ipAddresses = request.getHeader("X-Forwarded-For");if (ipAddresses == null || ipAddresses.length() == 0 || "unknown".equalsIgnoreCase(ipAddresses)) {// Proxy-Client-IP：apache 服务代理ipAddresses = request.getHeader("Proxy-Client-IP");}if (ipAddresses == null || ipAddresses.length() == 0 || "unknown".equalsIgnoreCase(ipAddresses)) {// WL-Proxy-Client-IP：weblogic 服务代理ipAddresses = request.getHeader("WL-Proxy-Client-IP");}if (ipAddresses == null || ipAddresses.length() == 0 || "unknown".equalsIgnoreCase(ipAddresses)) {// HTTP_CLIENT_IP：有些代理服务器ipAddresses = request.getHeader("HTTP_CLIENT_IP");}if (ipAddresses == null || ipAddresses.length() == 0 || "unknown".equalsIgnoreCase(ipAddresses)) {// X-Real-IP：nginx服务代理ipAddresses = request.getHeader("X-Real-IP");}// 有些网络通过多层代理，那么获取到的ip就会有多个，一般都是通过逗号（,）分割开来，并且第一个ip为客户端的真实IPif (ipAddresses != null && ipAddresses.length() != 0) {ip = ipAddresses.split(",")[0];}// 还是不能获取到，最后再通过request.getRemoteAddr();获取if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ipAddresses)) {ip = request.getRemoteAddr();}return ip.equals("0:0:0:0:0:0:0:1") ? "127.0.0.1" : ip;}
公网ip
/*** @return java.lang.String* @author tang wen jun* 获取公网ip* @date /12/8*/public static String getIpv4IP() {StringBuilder result = new StringBuilder();BufferedReader in = null;try {URL realUrl = new URL("/help/getip.php");// 打开和URL之间的连接URLConnection connection = realUrl.openConnection();// 设置通用的请求属性connection.setRequestProperty("accept", "*/*");connection.setRequestProperty("connection", "Keep-Alive");connection.setRequestProperty("user-agent","Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");// 建立实际的连接connection.connect();// 获取所有响应头字段Map<String, List<String>> map = connection.getHeaderFields();// 定义 BufferedReader输入流来读取URL的响应in = new BufferedReader(new InputStreamReader(connection.getInputStream()));String line;while ((line = in.readLine()) != null) {result.append(line);}} catch (Exception e) {log.error("获取ipv4公网地址异常");e.printStackTrace();} finally {try {if (in != null) {in.close();}} catch (Exception e2) {e2.printStackTrace();}}String str = result.toString().replace("ipCallback({ip:", "");String ipStr = str.replace("})", "");return ipStr.replace('"', ' ');}
