如何用Java代码示例获取登录用户的IP地址？

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javapackage com.audaque.util;

import javax.servlet.http.HttpServletRequest;

public class GetIp { public String getIpAddr(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.getHeader(HTTP_CLIENT_IP); } if (ip==null || ip.length()==0 || unknown.equalsIgnoreCase(ip)) { ip=request.getHeader(HTTP_X_FORWARDED_FOR); } if (ip==null || ip.length()==0 || unknown.equalsIgnoreCase(ip)) { ip=request.getRemoteAddr(); } return ip; }}

示例代码如下

package com.audaque.util; import java.net.InetAddress; import java.net.UnknownHostException; import javax.servlet.http.HttpServletRequest; public class GetIp { public 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; } }

请求地址：

public class HttpContextUtil { private HttpContextUtil(){ } //获取HttpServletRequest请求 public static HttpServletRequest getHttpServletRequest() { return ((ServletRequestAttributes) Objects.requireNonNull(RequestContextHolder.getRequestAttributes())).getRequest(); } }

调用

sysLog.setOperationTime(LocalDateTimeUtil.getCurrentDatetime()); //获取用户名 sysLog.setUsername(UserUtil.get("username", String.class)); //获取用户ip地址 HttpServletRequest request = HttpContextUtil.getHttpServletRequest(); sysLog.setIp(IPUtil.getIpAddr(request));

总结

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