如何在节点中确定用户的IP地址 [英] How to determine a user's IP address in node

问题描述

如何从控制器中确定给定请求的 IP 地址?例如(在快递中):

How can I determine the IP address of a given request from within a controller? For example (in express):

app.post('/get/ip/address', function (req, res) {
    // need access to IP address here
})

推荐答案

在你的 request 对象有一个属性叫做 socket，这是一个 net.Socket 对象.net.Socket 对象有一个属性 remoteAddress，因此您应该能够通过此调用获取 IP:

In your request object there is a property called socket, which is a net.Socket object. The net.Socket object has a property remoteAddress, therefore you should be able to get the IP with this call:

request.socket.remoteAddress

(如果您的节点版本低于 13，请使用现已弃用的<代码>request.connection.remoteAddress)

(if your node version is below 13, use the deprecated now request.connection.remoteAddress)

编辑

正如@juand 在评论中指出的，获取远程 IP 的正确方法是 request.headers['x-forwarded-for']

As @juand points out in the comments, the correct method to get the remote IP, if the server is behind a proxy, is request.headers['x-forwarded-for']

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