feat : Proxy Subject and Database

app/Controller/Test/ProxyController.php

@@ -0,0 +1,36 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Controller\Test;
+
+use App\Service\Test\Proxy\BasicSubjectService;
+use App\Service\Test\Proxy\DynamicProxyService;
+use Hyperf\HttpServer\Annotation\Controller;
+use Hyperf\HttpServer\Annotation\RequestMapping;
+use Psr\Container\ContainerExceptionInterface;
+use Psr\Container\NotFoundExceptionInterface;
+
+#[Controller(prefix: 'proxy/test')]
+class ProxyController
+{
+    /**
+     * @return array
+     */
+    #[RequestMapping(path: 'basic', methods: 'GET')]
+    public function basic(): array
+    {
+        return (new BasicSubjectService)->handle();
+    }
+
+    /**
+     * @return array
+     * @throws ContainerExceptionInterface
+     * @throws NotFoundExceptionInterface
+     */
+    #[RequestMapping(path: 'dynamic', methods: 'GET')]
+    public function dynamic(): array
+    {
+        return (new DynamicProxyService)->handle();
+    }
+}

app/Interface/Test/Proxy/DatabaseQueryInterface.php

@@ -0,0 +1,13 @@
+<?php
+
+namespace App\Interface\Test\Proxy;
+
+interface DatabaseQueryInterface
+{
+    /**
+     * 数据库查询接口
+     * @param string $query
+     * @return array
+     */
+    public function execute(string $query): array;
+}

app/Interface/Test/Proxy/SubjectInterface.php

@@ -0,0 +1,11 @@
+<?php
+
+namespace App\Interface\Test\Proxy;
+
+interface SubjectInterface
+{
+    /**
+     * @return void
+     */
+    public function request(): void;
+}

app/Service/Test/Proxy/BasicSubjectService.php

@@ -0,0 +1,32 @@
+<?php
+/**
+ * This service file is part of item.
+ *
+ * @author   ctexthuang
+ * @contact  ctexthuang@qq.com
+ * @web_site  https://ctexthuang.com
+ */
+
+declare(strict_types=1);
+
+namespace App\Service\Test\Proxy;
+
+use App\Service\Test\Proxy\Subject\ProxyService;
+use App\Service\Test\Proxy\Subject\RealSubjectService;
+use App\Service\Test\TestBaseService;
+use function Hyperf\Support\make;
+
+class BasicSubjectService extends TestBaseService
+{
+    /**
+     * @return array
+     */
+    public function handle(): array
+    {
+        $proxy = new ProxyService(make(RealSubjectService::class));
+
+        $proxy->request();
+
+        return $this->return->success();
+    }
+}

app/Service/Test/Proxy/Dynamic/DatabaseQueryProxyHandler.php

@@ -0,0 +1,60 @@
+<?php
+/**
+ * This service file is part of item.
+ *
+ * @author   ctexthuang
+ * @contact  ctexthuang@qq.com
+ * @web_site  https://ctexthuang.com
+ */
+
+declare(strict_types=1);
+
+namespace App\Service\Test\Proxy\Dynamic;
+
+use App\Interface\Test\Decorator\LoggerInterface;
+use App\Interface\Test\Proxy\DatabaseQueryInterface;
+
+class DatabaseQueryProxyHandler
+{
+    /**
+     * @var LoggerInterface
+     */
+    private LoggerInterface $logger;
+
+    /**
+     * @var DatabaseQueryInterface
+     */
+    private DatabaseQueryInterface $realService;
+
+    /**
+     * @param DatabaseQueryInterface $realService
+     * @param LoggerInterface $logger
+     */
+    public function __construct(
+        DatabaseQueryInterface $realService,
+        LoggerInterface $logger
+    )
+    {
+        $this->realService = $realService;
+        $this->logger = $logger;
+    }
+
+    /**
+     * @param DatabaseQueryInterface $target
+     * @param string $method
+     * @param array $parameters
+     * @param LoggerInterface $logger
+     * @return array
+     */
+    public function execute(string $query): array
+    {
+        $this->logger->log('Before executing query'.PHP_EOL);
+
+        // 调用原始方法
+        $result = $this->realService->execute($query);
+
+        $this->logger->log('After executing query'.PHP_EOL);
+
+        return $result;
+    }
+}

app/Service/Test/Proxy/Dynamic/RealDatabaseQueryService.php

@@ -0,0 +1,40 @@
+<?php
+/**
+ * This service file is part of item.
+ *
+ * @author   ctexthuang
+ * @contact  ctexthuang@qq.com
+ * @web_site  https://ctexthuang.com
+ */
+
+declare(strict_types=1);
+
+namespace App\Service\Test\Proxy\Dynamic;
+
+use App\Interface\Test\Decorator\LoggerInterface;
+use App\Interface\Test\Proxy\DatabaseQueryInterface;
+use Hyperf\Di\Annotation\Inject;
+
+
+class RealDatabaseQueryService implements DatabaseQueryInterface
+{
+    /**
+     * @var LoggerInterface
+     */
+    #[Inject]
+    protected LoggerInterface $logger;
+
+    /**
+     * @param string $query
+     * @return string[]
+     */
+    public function execute(string $query): array
+    {
+        $this->logger->log('Executing query: ' . $query . PHP_EOL);
+
+        return [
+            'result' => 'data',
+            'query' => $query,
+        ];
+    }
+}

app/Service/Test/Proxy/DynamicProxyService.php

@@ -0,0 +1,44 @@
+<?php
+/**
+ * This service file is part of item.
+ *
+ * @author   ctexthuang
+ * @contact  ctexthuang@qq.com
+ * @web_site  https://ctexthuang.com
+ */
+
+declare(strict_types=1);
+
+namespace App\Service\Test\Proxy;
+
+use App\Interface\Test\Decorator\LoggerInterface;
+use App\Service\Test\Proxy\Dynamic\DatabaseQueryProxyHandler;
+use App\Service\Test\Proxy\Dynamic\RealDatabaseQueryService;
+use App\Service\Test\TestBaseService;
+use Hyperf\Context\ApplicationContext;
+use Psr\Container\ContainerExceptionInterface;
+use Psr\Container\NotFoundExceptionInterface;
+
+
+class DynamicProxyService extends TestBaseService
+{
+    /**
+     * @return array
+     * @throws ContainerExceptionInterface
+     * @throws NotFoundExceptionInterface
+     */
+    public function handle(): array
+    {
+        $container = ApplicationContext::getContainer();
+
+        // 获取真实服务
+        $realService = $container->get(RealDatabaseQueryService::class);
+
+        $proxy = new DatabaseQueryProxyHandler(
+            $realService,
+            $container->get(LoggerInterface::class),
+        );
+
+        return $this->return->success('数据查询成功',$proxy->execute('SELECT * FROM user'));
+    }
+}

app/Service/Test/Proxy/Subject/ProxyService.php

@@ -0,0 +1,67 @@
+<?php
+/**
+ * This service file is part of item.
+ *
+ * @author   ctexthuang
+ * @contact  ctexthuang@qq.com
+ * @web_site  https://ctexthuang.com
+ */
+
+declare(strict_types=1);
+
+namespace App\Service\Test\Proxy\Subject;
+
+use App\Interface\Test\Decorator\LoggerInterface;
+use App\Interface\Test\Proxy\SubjectInterface;
+use Hyperf\Di\Annotation\Inject;
+
+class ProxyService implements SubjectInterface
+{
+    /**
+     * @var RealSubjectService
+     */
+    protected RealSubjectService $realSubjectService;
+
+    /**
+     * @var LoggerInterface
+     */
+    #[Inject]
+    protected LoggerInterface $logger;
+
+    /**
+     * 注入真实类
+     * @param RealSubjectService $realSubjectService
+     */
+    public function __construct(RealSubjectService $realSubjectService)
+    {
+        $this->realSubjectService = $realSubjectService;
+    }
+
+    public function request(): void
+    {
+        if (!$this->checkAccess()) return;
+
+        $this->realSubjectService->request();
+        $this->logAcces();
+
+        if ($this->checkAccess()) return;
+        $this->logAcces();
+    }
+
+    /**
+     * @return true
+     */
+    private function checkAccess()
+    {
+        $this->logger->log('Proxy: Checking access prior to firing a real request'.PHP_EOL);
+        return true;
+    }
+
+    /**
+     * @return void
+     */
+    private function logAcces()
+    {
+        $this->logger->log('Proxy: Logging the time of request'.PHP_EOL);
+    }
+}

app/Service/Test/Proxy/Subject/RealSubjectService.php

@@ -0,0 +1,34 @@
+<?php
+/**
+ * This service file is part of item.
+ *
+ * @author   ctexthuang
+ * @contact  ctexthuang@qq.com
+ * @web_site  https://ctexthuang.com
+ */
+
+declare(strict_types=1);
+
+namespace App\Service\Test\Proxy\Subject;
+
+use App\Interface\Test\Decorator\LoggerInterface;
+use App\Interface\Test\Proxy\SubjectInterface;
+use Hyperf\Di\Annotation\Inject;
+
+class RealSubjectService implements SubjectInterface
+{
+    /**
+     * @var LoggerInterface
+     */
+    #[Inject]
+    protected LoggerInterface $logger;
+
+    /**
+     * @return void
+     */
+    public function request(): void
+    {
+        $res = 'RealSubjectService: Handling request...'.PHP_EOL;
+        $this->logger->log($res);
+    }
+}

document/proxy.md

@@ -0,0 +1,20 @@
+
+
+### 代理模式 (Proxy Pattern) 详解
+
+> 代理模式是一种结构型设计模式，它允许你提供一个代理对象来控制对另一个对象的访问。代理可以在不修改原始对象的情况下，增强或控制对它的访问。
+
+#### 核心概念
+
+装饰器模式主要解决以下问题：
+
+- 控制访问：代理可以决定是否允许客户端访问目标对象（如权限控制）。 
+- 增强功能：代理可以在调用目标对象前后添加额外逻辑（如缓存、日志、延迟加载）。 
+- 远程访问：代理可以代表远程对象（如RPC、数据库访问）。 
+- 虚拟代理：代理可以延迟创建开销大的对象（如图片懒加载）。
+
+#### 常见应用场景
+- Spring AOP：通过动态代理实现切面编程 
+- MyBatis：Mapper接口的代理实现 
+- RPC框架：远程服务调用的本地代理 
+- 图片懒加载：先显示缩略图代理，点击再加载原图

request/test.http

@@ -30,4 +30,14 @@ Content-Type: application/x-www-form-urlencoded
 
 ### Decorator http test
 GET {{host}}/decorator/test/http
+Content-Type: application/x-www-form-urlencoded
+
+
+### Proxy basic test
+GET {{host}}/proxy/test/basic
+Content-Type: application/x-www-form-urlencoded
+
+
+### Proxy dynamic test
+GET {{host}}/proxy/test/dynamic
 Content-Type: application/x-www-form-urlencoded