问题
I am trying to build a basic MEAN stack app and am getting really confused about how to display information stored in mongodb in front end. What is the established process fo making a database query and then displaying that in the views. Should the server be making the db request and angular display the information? In all of the tutorials I have been looking through the interaction between mongodb and angular / front end seems to be very foggy.
At the moment (as i am setting up a tennis ladder app) I just want to display the list of players on the index page by querying the database for that information. Is this the correct approach?
Apologies for the vague question but i am really struggling to understand how this is achieved. I have been using Rails recently as comparison (though obviously very different) and in that case you could query the databse using ActiveRecord and define a variable to the result of that query, then use that variable in your view to display the data...
回答1:
The first thing to understand about Angular.js is that it is a singe page framework and not a full page refresh (multi-page) framework. So if you are fetching dynamic data from the server, there are two ways to do this.
- You can fetch "partial" HTML snippets from the server, or
- You can fetch JSON from the server
Or you can do a combination of the two (use partials for the static portions of the content and JSON for the data). The latter is the most Angular.js way of doing things - you fetch JSON data and use the Angular.js data binding to update the HTML.
I would suggest that you begin by becoming very familiar with Angular.js. There are a lot of tutorials out there and this example will walk you through creating a MEAN application using Yeoman http://www.ibm.com/developerworks/library/wa-mean1/index.html. This should help you understand the concepts better.
来源：https://stackoverflow.com/questions/27758288/mean-stack-display-information-from-mongodb-in-the-front-end