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SpringBoot系列：获取当前登录用户IP前言今天博主将为大家分享SpringBoot系列：获取当前登录用户IP，不喜勿喷，如有异议欢迎讨论！ 有一个强大的地基才能写出健壮的程序！ 活不多说上代码控制器方法: package com.cyj.controller; import javax.servlet.http.HttpServletRequest; import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.bind.annotation.RestController; import com.cyj.util.IpUtil; /** @Description: 获取ip控制器 @ClassName: IpController.java @author ChenYongJia @Date 2019年4月20日 晚上20:25 @Email [email protected]*/@RestControllerpublic class IpController { @RequestMapping(value = "/getIp", method = RequestMethod.POST) public String getIp(HttpServletRequest request) { return IpUtil.getIpAddr(request); }} 工具类方法 package com.jmccms.util;import lombok.extern.slf4j.Slf4j; import javax.servlet.http.HttpServletRequest;import java.net.*;import java.util.Enumeration; /** @Description: 获取IP方法 @BelongsProject: Jmccms @BelongsPackage: com.jmccms.util @Author: ChenYongJia @CreateTime: 2019-05-14 22:29 @Email [email protected]*/@Slf4jpublic class IpUtils { private static final String LOCAL_IP = "127.0.0.1"; public static String getIpAddr(HttpServletRequest request) { if (request == null) { return "unknown"; } 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("X-Forwarded-For"); } 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.getHeader("X-Real-IP"); } if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) { ip = request.getRemoteAddr(); } return "0:0:0:0:0:0:0:1".equals(ip) ? LOCAL_IP : ip; } public static boolean internalIp(String ip) { boolean res = false; byte[] addr = textToNumericFormatV4(ip); if (addr != null && ip != null) { res = internalIp(addr) || LOCAL_IP.equals(ip); } return res; } private static boolean internalIp(byte[] addr) { final byte b0 = addr[0]; final byte b1 = addr[1]; // 10.x.x.x/8 final byte SECTION_1 = 0x0A; // 172.16.x.x/12 final byte SECTION_2 = (byte) 0xAC; final byte SECTION_3 = (byte) 0x10; final byte SECTION_4 = (byte) 0x1F; // 192.168.x.x/16 final byte SECTION_5 = (byte) 0xC0; final byte SECTION_6 = (byte) 0xA8; boolean flag = false; switch (b0) { case SECTION_1: flag = true; break; case SECTION_2: if (b1 >= SECTION_3 && b1 4294967295L)) return null; bytes[0] = (byte) (int) (l >> 24 & 0xFF); bytes[1] = (byte) (int) ((l & 0xFFFFFF) >> 16 & 0xFF); bytes[2] = (byte) (int) ((l & 0xFFFF) >> 8 & 0xFF); bytes[3] = (byte) (int) (l & 0xFF); break; case 2: l = Integer.parseInt(elements[0]); if ((l < 0L) || (l > 255L)) return null; bytes[0] = (byte) (int) (l & 0xFF); l = Integer.parseInt(elements[1]); if ((l < 0L) || (l > 16777215L)) return null; bytes[1] = (byte) (int) (l >> 16 & 0xFF); bytes[2] = (byte) (int) ((l & 0xFFFF) >> 8 & 0xFF); bytes[3] = (byte) (int) (l & 0xFF); break; case 3: for (i = 0; i < 2; ++i) { l = Integer.parseInt(elements[i]); if ((l < 0L) || (l > 255L)) return null; bytes[i] = (byte) (int) (l & 0xFF); } l = Integer.parseInt(elements[2]); if ((l < 0L) || (l > 65535L)) return null; bytes[2] = (byte) (int) (l >> 8 & 0xFF); bytes[3] = (byte) (int) (l & 0xFF); break; case 4: for (i = 0; i < 4; ++i) { l = Integer.parseInt(elements[i]); if ((l < 0L) || (l > 255L)) return null; bytes[i] = (byte) (int) (l & 0xFF); } break; default: return null; } } catch (NumberFormatException e) { log.error("数字格式化异常",e); return null; } return bytes; } public static String getLocalIP() { String ip = ""; if (System.getProperty("os.name").toLowerCase().startsWith("windows")) { InetAddress addr; try { addr = InetAddress.getLocalHost(); ip = addr.getHostAddress(); } catch (UnknownHostException e) { log.error("获取失败",e); } return ip; } else { try { Enumeration e1 = (Enumeration) NetworkInterface .getNetworkInterfaces(); while (e1.hasMoreElements()) { NetworkInterface ni = (NetworkInterface) e1.nextElement(); if (!ni.getName().equals("eth0")) { continue; } else { Enumeration e2 = ni.getInetAddresses(); while (e2.hasMoreElements()) { InetAddress ia = (InetAddress) e2.nextElement(); if (ia instanceof Inet6Address) continue; ip = ia.getHostAddress(); return ip; } break; } } } catch (SocketException e) { log.error("获取失败",e); } } return ""; }} 到这里SpringBoot系列：获取当前登录用户IP，分享完毕了，快去试试吧！作者：陈永佳 来源：CSDN 原文：https://blog.csdn.net/Mrs_chens/article/details/90475108 版权声明：本文为博主原创文章，转载请附上博文链接！ |
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