Egg framework usage (1)

Table of Contents

egg initialization steps

egg folder recognition

egg convention rules

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egg initialization steps

1. Go to the project folder taobao and run cmd

2. Enter npm init egg --type=simple egg framework initialization

Get the following files:

3. There will still be some modules missing: enter npm i to download

The result is:

4. Download is complete npm run dev Start the server

Analysis: The default port number of the egg frame is: 7001 . You can also enter the real ip of the machine: 192.168.x.xx:7001

5. Browser input http://127.0.0.1:7001/ or http://192.168.0.105/ will appear

This is the URL that the framework has registered for users in advance

Analysis: When the pathname entered by the user is / or does not enter the pathname, it will run the index function in the home file in the controller folder

If pathname is entered casually: it will appear

Note: The front-end and back-end interactions use JSON data, even if the data returned by the back-end to the front-end is an object or other style data, it is actually JSON data. In the future, the front-end will beUsing axios to make a network request will convert the JSON data '{"name":"Hello","age":"20"}' into an object: {name:'Hello', age:20}

egg folder recognition

Analysis: All static files in the public folder have their own URLs, so there is no need to register with router.get

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egg convention rules

1 app/router.js: used to configure URL routing rules;

2 app/controller/ : used to parse the user's input, and return the corresponding result after processing;

3 app/service/: used to write business logic layer;

4 app/public/: for placing static resources; (static hosting)

5 config/config.{env}.js: used to write configuration files;

6 config/plugin.js is used to configure the plugins that need to be loaded;

egg official website

https://eggjs.org