mongoose Warning:Server Discovery and Monitoring engine is deprecated
mongoose 警告服务器发现和引擎已弃用
在connect里添加提示 useNewUrlParser: true, useUnifiedTopology: true }
const mongoose = require('mongoose')mongoose.connect('mongodb://localhost/blog', { useNewUrlParser: true, useUnifiedTopology: true }).then(() => {console.log('success connect');}).catch((err) => {console.log(err, 'connect failure');})
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