使用JAVA获取请求IP（访问者的IP）

素颜马尾好姑娘i 2022-05-27 03:05 217阅读 0赞

/** 
         * 获取当前网络ip 
         * @param request 
         * @return 
         */  
        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;

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[70]: /images/20220527/dbdf0d6116b34fbeada09f40d2cfa2d8.png