我通过axios post将一个用户对象和一个简单的字符串发布到后端，然后希望使用mongoose将这些数据存储在MongoDB中。如果我发送整个东西没有浏览器字符串，即只有用户对象并在后端处理它，一切工作。对象具有除浏览器属性之外的所有属性。我后来加了这个。那么，如何保存用户对象1：1，同时保存其他属性，比如这里的浏览器属性？实际上保存的只是浏览器字符串
使用mongoose保存新用户的功能：

//CREATE NEW USER
export const newUser = async (req, res, next) => {
try {
 const user = new User({ ...req.body.userD, browser: req.body.browser });

 const savedUser = await user.save();

 const myPromise = new Promise((resolve, reject) => {
   resolve(savedUser);
 });

 myPromise.then(() => {
  res.status(200).json("User saved");
 });

 } catch (error) {
  next(err);
 }
};

axios post：

let config = {
    method: 'post',
    maxBodyLength: Infinity,
    url: 'http://localhost:3999/server/user/new',
    headers: { 
      'Content-Type': 'application/json'
    },
    userD: data,
    browser:browser
};

await axios.request(config)
  .then((result) => {
    res.end(result.data)
  })

用户型号：

import mongoose from "mongoose";

const UserSchema = new mongoose.Schema(
{
asn: {
  type: String,
},
city: {
  type: String,
},
continent_code: {
  type: String,
},
country: {
  type: String,
},
country_area: {
  type: Number,
},
country_calling_code: {
  type: String,
},
country_capital: {
  type: String,
},
country_code: {
  type: String,
},
country_code_iso3: {
  type: String,
},
country_name: {
  type: String,
},
country_population: {
  type: Number,
},
country_tld: {
  type: String,
},
currency: {
  type: String,
},
currency_name: {
  type: String,
},

in_eu: {
  type: Boolean,
},
ip: {
  type: String,
},
languages: {
  type: String,
},

latitude: {
  type: Number,
},
longitude: {
  type: Number,
},
network: {
  type: String,
},

org: {
  type: String,
},
postal: {
  type: Number,
},
region: {
  type: String,
},

region_code: {
  type: String,
},
timezone: {
  type: String,
},
utc_offset: {
  type: String,
},
version: {
  type: String,
},
browser: {
  type: String,
},
},
{ timestamps: true }
);

export default mongoose.model("User", UserSchema);

更新

这是发送到Express服务器的数据：
{"data "：{"ip"："2003年：c4：www.example.com "，" network "：" 2003年：xxx"，"版本"：“IPv6”、“城市”："xxxx "，" region "：" xxxx"，"region_code"："BW "，" country "：" DE"，"country_name"："德国"，"国家代码"：" DE"，"country_code_iso3"："DEU "，" country_capital "：" Berlin"，"country_tld"：". de "，" continent_code "：" EU"，"in_eu"：true，"postal"："xxxx "，" latitude"：xxxx，“经度”：x. xx，" timezone"："欧洲/柏林"，" utc_offset"："+0200"，" country_calling_code"：“+49”，“货币”：" EUR"，" currency_name"：" Euro"，" languages"：" de"，" country_area"：357021，" country_population"：82927922，“asn”：" AS3320"，" org"：" Deutsche Telekom AG "}，" browser"：浏览器f720.xxx ", "network":"2003:xxx", "version":"IPv6", "city":"xxxx", "region":"xxxx", "region_code":"BW", "country":"DE", "country_name":"Germany", "country_code":"DE", "country_code_iso3":"DEU", "country_capital":"Berlin", "country_tld":".de", "continent_code":"EU", "in_eu":true, "postal":"xxxx", "latitude":xxxx, "longitude":x.xx, "timezone":"Europe/Berlin", "utc_offset":"+0200", "country_calling_code":"+49", "currency":"EUR", "currency_name":"Euro", "languages":"de", "country_area":357021, "country_population":82927922, "asn":"AS3320", "org":"Deutsche Telekom AG" }, "browser":"Browser" }
这是保存在mongodb

中的内容