Java获取本机ip和服务器ip

一、获取服务器IP

String addr = InetAddress.getLocalHost().getHostAddress();//获得本机IP

二、获取客户端本机IP

 String remoteAddr = request.getRemoteAddr();
 String forwarded = request.getHeader("X-Forwarded-For");
 String realIp = request.getHeader("X-Real-IP");
 String ip = null;
 if (realIp == null) {
     if (forwarded == null) {
         ip = remoteAddr;
     } else {
         ip = remoteAddr + "/" + forwarded.split(",")[0];
     }
 } else {
     if (realIp.equals(forwarded)) {
         ip = realIp;
     } else {
         if(forwarded != null){
             forwarded = forwarded.split(",")[0];
         }
         ip = realIp + "/" + forwarded;
     }
 }