一直报引入模块错误

来源:4-1 mongoose(1)

慕妹2939944

2019-08-19

import mongoose from 'mongoose'
let personSchema =new mongoose.Schema({
    name: String,
    age: Number
})

module.exports= mongoose.model('Person',personSchema)

错误内容

F:\koe-learn\dbs\models\person.js:1
(function (exports, require, module, __filename, __dirname) { import mongoose from 'mongoose';
                                                                     ^^^^^^^^

SyntaxError: Unexpected identifier
    at new Script (vm.js:80:7)
    at createScript (vm.js:274:10)
    at Object.runInThisContext (vm.js:326:10)
    at Module._compile (internal/modules/cjs/loader.js:664:28)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:712:10)
    at Module.load (internal/modules/cjs/loader.js:600:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:539:12)
    at Function.Module._load (internal/modules/cjs/loader.js:531:3)
    at Module.require (internal/modules/cjs/loader.js:637:17)
    at require (internal/modules/cjs/helpers.js:22:18)
    at Object.<anonymous> (F:\koe-learn\routes\users.js:2:15)
    at Module._compile (internal/modules/cjs/loader.js:701:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:712:10)
    at Module.load (internal/modules/cjs/loader.js:600:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:539:12)
    at Function.Module._load (internal/modules/cjs/loader.js:531:3)
    at Module.require (internal/modules/cjs/loader.js:637:17)
    at require (internal/modules/cjs/helpers.js:22:18)
    at Object.<anonymous> (F:\koe-learn\app.js:15:15)
    at Module._compile (internal/modules/cjs/loader.js:701:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:712:10)
    at Module.load (internal/modules/cjs/loader.js:600:32)
    ```
写回答

1回答

炮炮老王

2019-08-19

两种可能,1:nodejs默认不支持import这种es6语法,用const mongoose = require('mongoose
')代替。 或者安装babel来转 2,你没有安装mongoose,使用npm i mongoose 安装

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