接下来JS如何根据IP地址重定向用户？

Question

我目前正在 app.get('/anyPath') 中使用express和此方法来确定客户端的IP地址。

var ip = req.headers['x-real-ip'] || req.connection.remoteAddress
    if (ip.substr(0, 7) == "::ffff:") {
      ip = ip.substr(7)
      console.log(ip)
    }

有不同的方法吗？我发现自己在所有 app.get() 调用中重复上述代码行以匹配页面的不同路径。

Answer 1

示例修改自 Express 文档 [中间件] https://expressjs.com/en/guide/using-middleware.html

app.use(function (req, res, next) {
  if (req.method === 'get') {
    var ip = req.headers['x-real-ip'] || req.connection.remoteAddress
      if (ip.substr(0, 7) == "::ffff:") {
        ip = ip.substr(7)
        console.log(ip)
      }
  }
  next()
})