express mongodb 报错

Question

D:\blog>npm start

> blog@0.0.0 start D:\blog
> node ./bin/www

(node:10556) 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
  blog:server Listening on port 3000 +0ms
GET /error 404 10.885 ms - 363
GET /stylesheets/style.css 200 3.163 ms - 980
GET /error 404 3.812 ms - 363
GET /stylesheets/style.css 304 2.887 ms - -
GET /error 404 4.709 ms - 363
GET /stylesheets/style.css 304 0.911 ms - -
GET /error 404 2.261 ms - 363
GET /stylesheets/style.css 304 0.722 ms - -
GET /error 404 1.378 ms - 363
GET /stylesheets/style.css 304 2.227 ms - -

Answer 1

上面不是说了嘛？用啥替代啥。

Answer 2

构建Schema实例的时候，第一个参数为字段对象，第二个参数是collection对象，检查一下是不是第二个参数没有传或者传错。