protected $bind = [
        ‘app‘                     => App::class,
        ‘cache‘                   => Cache::class,
        ‘config‘                  => Config::class,
        ‘console‘                 => Console::class,
        ‘cookie‘                  => Cookie::class,
        ‘db‘                      => Db::class,
        ‘env‘                     => Env::class,
        ‘event‘                   => Event::class,
        ‘http‘                    => Http::class,
        ‘lang‘                    => Lang::class,
        ‘log‘                     => Log::class,
        ‘middleware‘              => Middleware::class,
        ‘request‘                 => Request::class,
        ‘response‘                => Response::class,
        ‘route‘                   => Route::class,
        ‘session‘                 => Session::class,
        ‘validate‘                => Validate::class,
        ‘view‘                    => View::class,
        ‘filesystem‘              => Filesystem::class,
        ‘think\DbManager‘         => Db::class,
        ‘think\LogManager‘        => Log::class,
        ‘think\CacheManager‘      => Cache::class,

        // 接口依赖注入
        ‘Psr\Log\LoggerInterface‘ => Log::class,
    ];

 1 /**
 2  * 架构方法
 3  * @access public
 4  * @param string $rootPath 应用根目录
 5  */
 6 public function __construct(string $rootPath = ‘‘)
 7 {
 8     $this->thinkPath   = dirname(__DIR__) . DIRECTORY_SEPARATOR;
 9     $this->rootPath    = $rootPath ? rtrim($rootPath, DIRECTORY_SEPARATOR) . DIRECTORY_SEPARATOR : $this->getDefaultRootPath();
10     $this->appPath     = $this->rootPath . ‘app‘ . DIRECTORY_SEPARATOR;
11     $this->runtimePath = $this->rootPath . ‘runtime‘ . DIRECTORY_SEPARATOR;
12 
13     if (is_file($this->appPath . ‘provider.php‘)) {
14         $this->bind(include $this->appPath . ‘provider.php‘);
15     }
16 
17     static::setInstance($this);
18 
19     $this->instance(‘app‘, $this);
20     $this->instance(‘think\Container‘, $this);
21 }

 1 <?php
 2 use app\ExceptionHandle;
 3 use app\Request;
 4 
 5 // 容器Provider定义文件
 6 return [
 7     ‘think\Request‘          => Request::class,
 8     ‘think\exception\Handle‘ => ExceptionHandle::class,
 9 ];
10 

 1 11   /**
 2 12      * 绑定一个类、闭包、实例、接口实现到容器
 3 13      * @access public
 4 14      * @param string|array $abstract 类标识、接口
 5 15      * @param mixed        $concrete 要绑定的类、闭包或者实例
 6 16      * @return $this
 7 17      */
 8 18     public function bind($abstract, $concrete = null)
 9 19     {
10 20         if (is_array($abstract)) {
11 21             foreach ($abstract as $key => $val) {
12 22                 $this->bind($key, $val);
13 23             }
14 24         } elseif ($concrete instanceof Closure) {
15 25             $this->bind[$abstract] = $concrete;
16 26         } elseif (is_object($concrete)) {
17 27             $this->instance($abstract, $concrete);
18 28         } else {
19 29             $abstract = $this->getAlias($abstract);
20 30             if ($abstract != $concrete) {
21 31                 $this->bind[$abstract] = $concrete;
22 32             }
23 33         }
24 34 
25 35         return $this;
26 36     }

 1    /**
 2      * 根据别名获取真实类名
 3      * @param  string $abstract
 4      * @return string
 5      */
 6     public function getAlias(string $abstract): string
 7     {
 8         if (isset($this->bind[$abstract])) {
 9             $bind = $this->bind[$abstract];
10 
11             if (is_string($bind)) {
12                 return $this->getAlias($bind);
13             }
14         }
15 
16         return $abstract;
17     }