YII Micro-Frame

Directory

• Installation
• Configuration
• First API
  • API style
  • return some data
• Other

There are times when it is not necessary to use the full Yii framework, and YII itself is a micro-framework.

Here are the official: Yii 2.0 authoritative Guide-using Yii as a micro-frame

Installation

This section is no different from the official Yii documentation.

• Create a new working folder, which is namedmicro-app

• Create a new file under this folder composer.json :

  {    "require": {        "yiisoft/yii2": "~2.0.0"    },    "repositories": [        {            "type": "composer",            "url": "https://packagist.laravel-china.org"        }    ]}

  Please note here that the url Composer Official library is https://asset-packagist.org , because of the wall reason, the domestic access speed is relatively slow, therefore replaced the above Laravel-china to build the library.

• Run composer install command (under Windows composer.bat install )

• Constructs the project structure, under which the new Web , controllers , models folders are created, similar to the Yii base version. The Web folder is used as an accessible directory, inside the portal file index.php :

    <?php//comment out the Following lines when deployed to productiondefined (' yii_debug ') or define (' Yii_debug ', true);d efined (' yii_env ') or de Fine (' yii_env ', ' dev '); require (__dir__. ‘/.. /vendor/autoload.php '); require (__dir__. ‘/.. /vendor/yiisoft/yii2/yii.php '); $config = Require __dir__. ‘/.. /config.php ';(new Yii\web\application ($config))->run ();  

• Create a new profile and micro-app create a new file in the directory config.php :

  <?phpreturn [    ‘id‘ => ‘micro-app‘,    // the basePath of the application will be the `micro-app` directory    ‘basePath‘ => __DIR__,    // this is where the application will find all controllers    ‘controllerNamespace‘ => ‘micro\controllers‘,    // set an alias to enable autoloading of classes from the ‘micro‘ namespace    ‘aliases‘ => [        ‘@micro‘ => __DIR__,    ],];

So you have the following file structure:

micro-app/├── composer.json├── config.php├── web/    └── index.php├── models/└── controllers/

Configuration

config.phpWrite configuration information in (can refer to Yii Basic or Premium version, is the same):

    ‘components‘ => [        // 数据库：        // 使用mysql数据库，数据库地址是localhost，使用的库是cms        // 数据库用户名：root，密码：123456        ‘db‘ => [            ‘class‘ => ‘yii\db\Connection‘,            ‘dsn‘ => ‘mysql:host=localhost;dbname=cms‘,            ‘username‘ => ‘root‘,            ‘password‘ => ‘123456‘,        ],        // 请求：        // 允许使用JSON格式的请求，并配置JSON解析器        ‘request‘ => [            ‘parsers‘ => [                ‘application/json‘ => ‘yii\web\JsonParser‘,            ]        ],        // 响应：        // 返回数据的格式为JSON        ‘response‘ => [            ‘format‘ => ‘json‘,        ],        // URL路由：        // 参考官方文档可以对URL进行美化、语义化//        ‘urlManager‘ => [//            ‘enablePrettyUrl‘ => true,//            ‘showScriptName‘ => false,//            ‘enableStrictParsing‘ => true,//            ‘rules‘ => [//            ],//        ],    ],

The first style of APIAPI

The API here is a non-restful style, but a custom format:

{    ‘Status‘: 200,    ‘Data‘: [],    ‘ErrorMessage‘: ‘‘}

Status: Business status Code, reference HTTP status code, 200 indicates success

Data: Business Data

ErrorMessage: Error message, empty if error-free

The party receiving the API data, when the response is received, the first judgment Status , if the error should be based on ErrorMessage appropriate processing.

return some data

1. models Create a new file under the folder User.php :

<?phpnamespace micro\models;use yii\db\ActiveRecord;class User extends ActiveRecord{}

2. controllers create a new file under the folder SiteController.php :

<?phpnamespace micro\controllers;use micro\models\User;use yii\web\Controller;class SiteController extends Controller{    public function actionIndex()    {        return [            ‘Status‘ => 200,            ‘Data‘ => User::findOne([‘id‘ => 1]),            ‘ErrorMessage‘ => ‘‘,        ];    }}

3. Visit

• If you have web set the folder to access the directory, you can try to access:

  http://localhost/?r=site/index

• If your Access directory is micro-app , then try to access:

  http://localhost/web/?r=site/index

The response is presumably:

Other

• URLs can do some landscaping, refer to: YII 2.0 authoritative Guide-routing
• Receive data can still be used as in the Yii basic version, such as the use Yii::$app->request->post() of
• You can \web\index.php set up a test environment or a production environment in, as with the Yii Base edition

YII Micro-Frame