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如何启动服务？

D:\cd 安装路径\MongoDB\Server\3.6\bin
mongod --dbpath D:\安装路径\MongoDB\Server\3.6\data//在bin目录下，配置数据库地址

nodejs如何操作mongoose?

1. 安装
   npm install mongoose
2. 引入

// Using Node.js `require()`
const mongoose = require('mongoose');
 
// Using ES6 imports
import mongoose from 'mongoose';

3. 连接mongodb

var mongoose = require('mongoose');
 
mongoose.connect('mongodb://localhost/my_database');

4. 通过schema接口创建模块

var Schema = mongoose.Schema,
    ObjectId = Schema.ObjectId;
 
var BlogPost = new Schema({
    author    : ObjectId,
    title     : String,
    body      : String,
    date      : Date
});

指定端口