获取IP地址

package com.mall.common;


import java.net.InetAddress;
import java.net.UnknownHostException;
import javax.servlet.http.HttpServletRequest;


public class SystemIp {
    
    private static InetAddress inetAddress = null;
    //静�?�代码块,初始化对�?
    static {
        try {
            inetAddress = InetAddress.getLocalHost();
        } catch (UnknownHostException e) {
            e.printStackTrace();
        }
    }
    //获取系统IP地址
    public static String getSysIp(){
        
        return inetAddress.getHostAddress();
    }
    //获取系统IP对应的主机名
    public static String getSysLoc(){
        return inetAddress.getHostName();
    }
    
    //获取客户端真实IP地址
    public static String getRemortIP(HttpServletRequest request) {
          if (request.getHeader("x-forwarded-for") == null) {
           return request.getRemoteAddr();
          }
          return request.getHeader("x-forwarded-for");
    }

    
    /**
     * 测试
     */
    public static void main(String[] args) {
        
        System.out.println("服务端IP�?  "+SystemIp.getSysIp()+"  "+SystemIp.getSysLoc());
        
    }
    
}