hyperf 依赖注入

通过构造方法注入

控制器 app/Controller/IndexController.php

<?php
namespace App\Controller;

use App\Service\UserService;
use Hyperf\HttpServer\Contract\RequestInterface;

class IndexController
{
    /**
     * @var UserService
     */
    private $userService;

    // 通过在构造函数的参数上声明参数类型完成自动注入
    public function __construct(UserService $userService)
    {
        $this->userService = $userService;
    }

    public function index(RequestInterface $request)
    {
        $id = $request->input('id',1);
        // 直接使用
        return $this->userService->getInfoById($id);    
    }
}

service类 app/Service/UserService.php

<?php
namespace App\Service;

class UserService
{
    public function getInfoById(int $id)
    {
        return 'user-service:'.$id;  
    }
}

测试访问

curl 118.195.173.53:9501?id=12

结果显示

user-service:12

通过 @Inject 注解注入

控制器 app/Controller/IndexController.php

<?php
namespace App\Controller;

use App\Service\UserService;
use Hyperf\Di\Annotation\Inject;
use Hyperf\HttpServer\Contract\RequestInterface;

class IndexController
{
        /**
         * 通过 `@Inject` 注解注入由 `@var` 注解声明的属性类型对象
         * @Inject 
         * @var UserService
         */
        private $userService;

        // 通过在构造函数的参数上声明参数类型完成自动注入
        public function __construct(UserService $userService)
        {
                $this->userService = $userService;
        }

        public function index(RequestInterface $request)
        {
                $id = $request->input('id',1);
                // 直接使用
                return $this->userService->getInfoById($id);
        }
}

service类 app/Service/UserService.php

<?php
namespace App\Service;

class UserService
{
    public function getInfoById(int $id)
    {
        return 'user-service:'.$id;  
    }
}

测试访问

curl 118.195.173.53:9501?id=2

结果显示

user-service:2

抽象对象注入

控制器 app/Controller/IndexController.php

<?php
namespace App\Controller;

use App\Service\UserService;
use Hyperf\Di\Annotation\Inject;
use Hyperf\HttpServer\Contract\RequestInterface;

class IndexController
{
        /**
         * 通过 `@Inject` 注解注入由 `@var` 注解声明的属性类型对象
         * @Inject 
         * @var UserServiceInterface
         */
        private $userService;

        // 通过在构造函数的参数上声明参数类型完成自动注入
        public function __construct(UserService $userService)
        {
                $this->userService = $userService;
        }

        public function index(RequestInterface $request)
        {
                $id = $request->input('id',1);
                // 直接使用
                return $this->userService->getInfoById($id);
        }
}

userService接口 app/Service/UserServiceInterface.php

<?php
namespace App\Service;

interface UserServiceInterface
{
    public function getInfoById(int $id);
}

userService接口实现类 app/Service/Userservice.php

<?php
namespace App\Service;

class UserService implements UserServiceInterface
{
    public function getInfoById(int $id)
    {
        return 'user-service-抽象对象注入:'.$id.PHP_EOL;
    }
}

接口和实现类依赖配置 config/autoload/dependencies.php

<?php
return [
    \App\Service\UserServiceInterface::class => \App\Service\UserService::class
];

测试访问

curl 118.195.173.53:9501?id=3

结果显示

user-service-抽象对象注入:3

工厂类注入

控制器 app/Controller/IndexController.php

<?php
namespace App\Controller;

use App\Service\UserServiceInterface;
use Hyperf\Di\Annotation\Inject;
use Hyperf\HttpServer\Contract\RequestInterface;
use Psr\Container\ContainerInterface;

class IndexController
{
        /**
         * 通过 `@Inject` 注解注入由 `@var` 注解声明的属性类型对象
         * @Inject 
         * @var UserServiceInterface
         */
        private $userService;


        public function index(RequestInterface $request)
        {
                  $id = $request->input('id',1);
                // 直接使用
                return $this->userService->getInfoById($id);
        }
}

接口 app/Service/UserServiceInterface.php

<?php
namespace App\Service;

interface UserServiceInterface
{
    public function getInfoById(int $id);
}

工厂类 app/Service/UserServiceFactory.php

<?php
namespace App\Service;

use Hyperf\Contract\ConfigInterface;
use Psr\Container\ContainerInterface;

class UserServiceFactory
{
    // 实现一个 __invoke() 方法来完成对象的生产，方法参数会自动注入一个当前的容器实例
    public function __invoke(ContainerInterface $container)
    {
            $config = $container->get(ConfigInterface::class);
            //获取author配置
            $author = $config->get('author', 'hu');
        return make(UserService::class, compact('author'));
    }
}

UserService类 app/Service/UserService.php

<?php
namespace App\Service;

class UserService implements UserServiceInterface
{
        /**
         * @var string
         */
        private $author;

        public function __construct(string $author)
        {
                // 接收值并储存于类属性中
                $this->author = $author;
        }

        public function getInfoById(int $id)
        {
                return 'user-service-工厂对象注入1'.$id.',author:'.$this->author.PHP_EOL;
        }
}

接口依赖配置 config/autoload/dependencies.php

<?php

declare(strict_types=1);

return [
        \App\Service\UserServiceInterface::class => \App\Service\UserServiceFactory::class
];

添加author项配置 config/config.php

'author'=>'huyongjian'

测试访问

curl 118.195.173.53:9501?id=4

结果显示

user-service-工厂对象注入4,author:huyongjian