(node:9388) 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.
solved:
mongoose.connect('mongodb://tiankun:[email protected]:11143/nodeexpress',{useNewUrlParser:true}, function(err){
if(err){
console.log('Connection Error:' + err)
}else{
console.log('Connection success!') }
});