DeprecationWarning: current URL string parser is deprecated, and will be removed in a future version
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Node连接Mongoose抛出一个警告：
mongoose版本: “^5.2.12”
(node:6592) DeprecationWarning: current URL string parser is deprecated, and will be removed in a future version. To use the new parser, pass option { useNewUrlParser: true } to MongoClient.connect
//The current URL string parser is deprecated Deprecated then also provides a solution for you to {useNewUrlParser: true} in options
Solution:
- mongoose.connect('mongodb://127.0.0.1/models');
+ mongoose.connect('mongodb://127.0.0.1/models',{ useNewUrlParser: true });
other problems
(node:6825) DeprecationWarning: collection.count is deprecated, and will be removed in a future version. Use collection.countDocuments or collection.estimatedDocumentCount instead
Use the collection.countDocuments() method instead of collection.count().
Click to view documents collection.countDocuments().