new

2025-04-14 16:35:05 +08:00
commit b76fb31890
8 changed files with 477 additions and 0 deletions
--- a/app/Http/Controllers/QRCodeController.php
+++ b/app/Http/Controllers/QRCodeController.php
@@ -0,0 +1,73 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use App\Services\QRCodeService;
+use Illuminate\Http\Request;
+use Illuminate\Http\Response;
+use Illuminate\Support\Facades\Cache;
+use Illuminate\Support\Facades\Validator;
+
+class QRCodeController extends Controller
+{
+    protected $qrCodeService;
+
+    public function __construct(QRCodeService $qrCodeService)
+    {
+        $this->qrCodeService = $qrCodeService;
+    }
+
+    public function generate(Request $request)
+    {
+        $validator = Validator::make($request->all(), [
+            'text' => 'required|string|max:2048',
+            'size' => 'required|integer|min:100|max:800',
+            'errorCorrection' => 'required|in:L,M,Q,H',
+            'logo' => 'nullable|string'
+        ]);
+
+        if ($validator->fails()) {
+            return response()->json(['errors' => $validator->errors()], 422);
+        }
+
+        $cacheKey = md5($request->text . $request->size . $request->errorCorrection . $request->logo);
+
+        try {
+            $qrCode = Cache::remember($cacheKey, 3600, function () use ($request) {
+                return $this->qrCodeService->generate(
+                    $request->text,
+                    $request->size,
+                    $request->errorCorrection,
+                    $request->logo
+                );
+            });
+
+            return response($qrCode)
+                ->header('Content-Type', 'image/png')
+                ->header('Cache-Control', 'public, max-age=3600');
+
+        } catch (\Exception $e) {
+            return response()->json(['error' => '二维码生成失败'], 500);
+        }
+    }
+
+    public function uploadLogo(Request $request)
+    {
+        $validator = Validator::make($request->all(), [
+            'file' => 'required|image|mimes:jpeg,png,jpg|max:2048'
+        ]);
+
+        if ($validator->fails()) {
+            return response()->json(['errors' => $validator->errors()], 422);
+        }
+
+        try {
+            $path = $request->file('file')->store('logos', 'public');
+            return response()->json([
+                'url' => asset('storage/' . $path)
+            ]);
+        } catch (\Exception $e) {
+            return response()->json(['error' => 'Logo上传失败'], 500);
+        }
+    }
+}
--- a/app/Services/QRCodeService.php
+++ b/app/Services/QRCodeService.php
@@ -0,0 +1,78 @@
+<?php
+
+namespace App\Services;
+
+use Intervention\Image\Facades\Image;
+use Exception;
+
+class QRCodeService
+{
+    protected $phpqrcode;
+    protected $tempDir;
+
+    public function __construct()
+    {
+        $this->tempDir = storage_path('app/temp');
+        if (!file_exists($this->tempDir)) {
+            mkdir($this->tempDir, 0777, true);
+        }
+
+        // 引入PHP QR Code库
+        require_once base_path('vendor/phpqrcode/qrlib.php');
+        $this->phpqrcode = new \QRcode();
+    }
+
+    public function generate(string $text, int $size, string $errorCorrection = 'M', ?string $logoPath = null)
+    {
+        $tempFile = $this->tempDir . '/' . md5($text . time()) . '.png';
+
+        // 设置错误纠正级别
+        $errorCorrectionLevel = match($errorCorrection) {
+            'L' => QR_ECLEVEL_L,
+            'M' => QR_ECLEVEL_M,
+            'Q' => QR_ECLEVEL_Q,
+            'H' => QR_ECLEVEL_H,
+            default => QR_ECLEVEL_M
+        };
+
+        try {
+            // 生成二维码
+            $this->phpqrcode->png($text, $tempFile, $errorCorrectionLevel, $size);
+
+            // 如果提供了Logo，则合并Logo
+            if ($logoPath) {
+                $this->mergeLogo($tempFile, $logoPath);
+            }
+
+            // 读取生成的图片
+            $qrCode = file_get_contents($tempFile);
+
+            // 删除临时文件
+            unlink($tempFile);
+
+            return $qrCode;
+
+        } catch (Exception $e) {
+            if (file_exists($tempFile)) {
+                unlink($tempFile);
+            }
+            throw $e;
+        }
+    }
+
+    protected function mergeLogo(string $qrCodePath, string $logoPath)
+    {
+        $qrCode = Image::make($qrCodePath);
+        $logo = Image::make($logoPath);
+
+        // 调整Logo大小，不超过二维码的1/4
+        $logoSize = min($qrCode->width(), $qrCode->height()) / 4;
+        $logo->resize($logoSize, $logoSize, function ($constraint) {
+            $constraint->aspectRatio();
+        });
+
+        // 在二维码中心添加Logo
+        $qrCode->insert($logo, 'center');
+        $qrCode->save($qrCodePath);
+    }
+}