从request获取IP的方法

根据request获取IP的方式:

public static 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.getRemoteAddr();
??????? }
??????? return ip;
??? }

注意:当访问地址为localhost时 地址格式为 0:0:0:0:0:0:1

访问地址写为127.0.0.1时正常