1.app\common\library\Upload.php 文件
upload方法
/*** 普通上传* @return \app\common\model\attachment|\think\Model* @throws UploadException*/public function upload($savekey = null){if (empty($this->file)) {throw new UploadException(__('No file upload or server upload limit exceeded'));}$this->checkSize();$this->checkExecutable();$this->checkMimetype();$this->checkImage();$savekey = $savekey ? $savekey : $this->getSavekey();$savekey = '/' . ltrim($savekey, '/');$uploadDir = substr($savekey, 0, strripos($savekey, '/') + 1);$fileName = substr($savekey, strripos($savekey, '/') + 1);$destDir = ROOT_PATH . 'public' . str_replace('/', DS, $uploadDir);$sha1 = $this->file->hash();//如果是合并文件if ($this->merging) {if (!$this->file->check()) {throw new UploadException($this->file->getError());}$destFile = $destDir . $fileName;$sourceFile = $this->file->getRealPath() ?: $this->file->getPathname();$info = $this->file->getInfo();$this->file = null;if (!is_dir($destDir)) {@mkdir($destDir, 0755, true);}rename($sourceFile, $destFile);$file = new File($destFile);$file->setSaveName($fileName)->setUploadInfo($info);} else {$file = $this->file->move($destDir, $fileName);if (!$file) {// 上传失败获取错误信息throw new UploadException($this->file->getError());}}$this->file = $file;$config=Db::name('config')->where(['group'=>'attachment'])->column('value','name');if ($config['open_watermark']){$fontPath = 'assets/fonts/zk.ttf'; // 确保字体文件路径正确，并且该字体支持中文$this->addTextWatermark('.'.$uploadDir . $file->getSaveName(), '.'.$uploadDir . $file->getSaveName(), $fontPath,$config);}//开启图片压缩if ($config['open_thum']){if (in_array($this->fileInfo['type'], ['image/gif', 'image/jpg', 'image/jpeg', 'image/bmp', 'image/png', 'image/webp']) || in_array($this->fileInfo['suffix'], ['gif', 'jpg', 'jpeg', 'bmp', 'png', 'webp'])) {$filesize=filesize('.'.$uploadDir . $file->getSaveName());if ($filesize>200000){$this->compressImage('.'.$uploadDir . $file->getSaveName(),'.'.$uploadDir . $file->getSaveName(),$config['thum_quality']);$imgInfo = getimagesize('.'.$uploadDir . $file->getSaveName());$filesize=filesize('.'.$uploadDir . $file->getSaveName());$this->fileInfo['size']=$filesize;$this->fileInfo['imagewidth'] = $imgInfo[0] ?? 0;$this->fileInfo['imageheight'] = $imgInfo[1] ?? 0;}}}$category = request()->post('category');$category = array_key_exists($category, config('site.attachmentcategory') ?? []) ? $category : '';$auth = Auth::instance();$params = array('admin_id' => (int)session('admin.id'),'user_id' => (int)$auth->id,'filename' => mb_substr(htmlspecialchars(strip_tags($this->fileInfo['name'])), 0, 100),'category' => $category,'filesize' => $this->fileInfo['size'],'imagewidth' => $this->fileInfo['imagewidth'],'imageheight' => $this->fileInfo['imageheight'],'imagetype' => $this->fileInfo['suffix'],'imageframes' => 0,'mimetype' => $this->fileInfo['type'],'url' => $uploadDir . $file->getSaveName(),'uploadtime' => time(),'storage' => 'local','sha1' => $sha1,'extparam' => '',);$attachment = new Attachment();$attachment->data(array_filter($params));$attachment->save();\think\Hook::listen("upload_after", $attachment);return $attachment;}/*** 压缩图片* @param $sourcePath //需要压缩的图片* @param $targetPath //压缩后的图片* @param $quality //压缩质量* @return bool*/public function compressImage($sourcePath, $targetPath, $quality) {$info = getimagesize($sourcePath);if ($info !== false) {$image = imagecreatefromstring(file_get_contents($sourcePath));imagejpeg($image, $targetPath, $quality); // 质量范围从0（差）到100（好）imagedestroy($image);return true;}return false;}/*** @param $imagePath 原图* @param $outputPath 输出图* @param $text 文字* @param $fontPath 字体路径* @param $fontSize 字体大小* @param $color 字体颜色* @param $position 位置* @return void*/public function addTextWatermark($imagePath, $outputPath, $fontPath, $config) {// 创建图片资源$image = imagecreatefromstring(file_get_contents($imagePath));// 获取图片尺寸list($width, $height) = getimagesize($imagePath);// 设置文字颜色$black = imagecolorallocatealpha($image, 0, 0, 0, 100); // 最后一个参数是透明度，范围从0（完全透明）到127（完全不透明）
// $textColor = imagecolorallocate($image, hexdec(substr($color, 0, 2)), hexdec(substr($color, 2, 2)), hexdec(substr($color, 4, 2)));// 设置字体路径和大小$font = realpath($fontPath);$fontSize=abs($config['watermark_size']);if (empty($config['watermark_colour'])) {$textColor =imagecolortransparent($image, $black);}else{$rgb=Checking::hColor2RGB($config['watermark_colour']);$black = imagecolorallocatealpha($image, $rgb['r'], $rgb['g'], $rgb['b'], 100); // 最后一个参数是透明度，范围从0（完全透明）到127（完全不透明）$textColor =imagecolortransparent($image, $black);}if (empty($config['watermark_text'])){$text='专用水印';}else{$text=$config['watermark_text'];}$bbox = imagettfbbox($fontSize, 0, $fontPath, $text); // 获取文字的边界框$text_width = $bbox[2] - $bbox[0];$text_height = $bbox[7] - $bbox[1];if (!empty($config['watermark_position'])) {if ($width-$text_width*3>50){$watermark_position=explode(',', $config['watermark_position']);foreach ($watermark_position as $position) {switch ($position) {case 1:imagettftext($image, $fontSize, 0, ($width - $text_width*3)/4 , $height/6 , $textColor, $font, $text);break;case 2:imagettftext($image, $fontSize, 0, ($width - $text_width*3)/4 , $height/6*3 , $textColor, $font, $text);break;case 3:imagettftext($image, $fontSize, 0, ($width - $text_width*3)/4 , $height/6*5 , $textColor, $font, $text);break;case 4:imagettftext($image, $fontSize, 0, ($width - $text_width*3)/4*2+$text_width, $height/6 , $textColor, $font, $text);break;case 5:imagettftext($image, $fontSize, 0, ($width - $text_width*3)/4*2+$text_width, $height/6*3 , $textColor, $font, $text);break;case 6:imagettftext($image, $fontSize, 0, ($width - $text_width*3)/4*2+$text_width, $height/6*5 , $textColor, $font, $text);break;case 7:imagettftext($image, $fontSize, 0, ($width - $text_width*3)/4*3+$text_width*2, $height/6 , $textColor, $font, $text);break;case 8:imagettftext($image, $fontSize, 0, ($width - $text_width*3)/4*3+$text_width*2, $height/6*3 , $textColor, $font, $text);break;case 9:imagettftext($image, $fontSize, 0, ($width - $text_width*3)/4*3+$text_width*2, $height/6*5 , $textColor, $font, $text);break;}}}}// 保存图片imagejpeg($image, $outputPath);imagedestroy($image);} /*** 颜色转换 16进制转rgb* @param $hexColor* @return array*/public static function hColor2RGB($hexColor){$color = str_replace('#', '', $hexColor);if (strlen($color) > 3) {$rgb = array('r' => hexdec(substr($color, 0, 2)),'g' => hexdec(substr($color, 2, 2)),'b' => hexdec(substr($color, 4, 2)));} else {$color = str_replace('#', '', $hexColor);$r = substr($color, 0, 1) . substr($color, 0, 1);$g = substr($color, 1, 1) . substr($color, 1, 1);$b = substr($color, 2, 1) . substr($color, 2, 1);$rgb = array('r' => hexdec($r),'g' => hexdec($g),'b' => hexdec($b));}return $rgb;}数据库配置
颜色选择器添加，请参考之前的文章
【FastAdmin】在页面中使用layui，以此引申使用颜色选择器示例-CSDN博客
