方式1

直接获取IP。

HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();
String ipaddr = request.getRemoteAddr();
if(ipaddr == "0:0:0:0:0:0:0:1"){
   ipaddr ="127.0.0.1";
}
System.out.println(ipaddr);

方式2

封装为工具类。

import javax.servlet.http.HttpServletRequest;
public class IPUtil {
    /**
     * 获取请求IP
     * @param request 请求对象
     * @return
     */
    public static String getIpAddress(HttpServletRequest request) {
        String ip = request.getHeader("X-Forwarded-For");
        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.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.getRemoteAddr();
        }
        String OperationIp = request.getHeader("Operation-IP");
        if(OperationIp != null && !"".equals(OperationIp)) {
            ip = ip + ";" + OperationIp;
        }
        return ip;
    }
}