ip

客户端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;  
    }  
}

　　

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