Question

我试图用Express js获取客户端的IP地址，代码如下：

var ip;
if (req.headers['x-forwarded-for']) {
    ip = req.headers['x-forwarded-for'].split(",")[0];
} else if (req.connection && req.connection.remoteAddress) {
    ip = req.connection.remoteAddress;
} else {
    ip = req.ip;
}
ip = (ip.length < 15 ? ip : (ip.substr(0, 7) === '::ffff:' ? ip.substr(7) : undefined));


console.log('ip address',ip);

但每次我获取localhost ip地址不是公共IP地址，那么如何获取公共IP地址而不是localhost ip地址？有人可以帮我吗？

提前致谢。

Answer 1

检查x-forwarded-for标题的最后一个IP。

例如，在aws：

列表中的最后一个IP地址是客户端的IP地址 http://docs.aws.amazon.com/elasticloadbalancing/latest/classic/x-forwarded-headers.html#x-forwarded-for

获取远程客户端IP地址NodeJS，ExpressJs

1 个答案: