mongoose 连接多个数据库

使用 createConnection 来替代 connect

MovieSchema.js

module.exports={
    pic:String,
    title:String,
    slogo:String,
    evaluate:String,
    labels:Array,
    rating:String
}

db.js

const mongoose = require("mongoose")
var mongodb = mongoose.createConnection( 'mongodb://127.0.0.1:27017/movies', {
    useNewUrlParser: true,
    useUnifiedTopology:true
});
var Schema = mongoose.Schema
module.exports ={
    mongodb,
    Schema
}

Top250.js

const {mongodb,Schema} = require("./baseDB/db-movies")
const MovieSchema = require("./Schema/MovieSchema")
const Top250Schema = new Schema(MovieSchema)
const Top250Model = mongodb.model("Top250",Top250Schema,"top250")
module.exports = Top250Model