mongoose 连接警告问题(node:148572) DeprecationWarning: `open()` is deprecated in mongoose >= 4.11.0

代码

var mongoose=require("mongoose");

mongoose.connect('mongodb://127.0.0.1:27017/test');//连接数据库

var connection=mongoose.connection;
connection.on('error',function(err){
if(err){
console.log(err);
}
});
connection.on('open',function(){
console.log('opened');
});

问题

(node:148572) DeprecationWarning: `open()` is deprecated in mongoose >= 4.11.0, use `openUri()` instead, or set the `useMongoClient` option if using `connect()` or `createConnection()`. See http://mongoosejs.com/docs/connections.html#use-mongo-client
opened

解决

还是能出来结果的，只不过是版本更新了，连接方式有变。

改成这样就行

mongoose.connect('mongodb://127.0.0.1:27017/test',{useMongoClient: true});//连接数据库

总结

刚开始看到问题所在，点进去看了mongoose的文档，无奈英文文档看不下去。于是就百度了……

还是要耐下心来看英文文档