<?php
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header('Content-Type: application/json; charset=utf-8');
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// 设置错误报告
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error_reporting(E_ALL);
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ini_set('display_errors', 1);
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// 允许跨域请求（如果需要）
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header('Access-Control-Allow-Origin: *');
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header('Access-Control-Allow-Methods: POST');
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header('Access-Control-Allow-Headers: Content-Type');
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// 检查请求方法
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if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
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echo json_encode([
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'success' => false,
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'message' => '只支持POST请求'
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]);
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exit;
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}
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// 获取参数
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$uploadFileName = isset($_POST['uploadFileName']) ? $_POST['uploadFileName'] : '';
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$file = isset($_FILES['file']) ? $_FILES['file'] : null;
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// 验证参数
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if (empty($uploadFileName)) {
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echo json_encode([
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'success' => false,
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'message' => 'uploadFileName参数不能为空'
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]);
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exit;
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}
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if (!$file || $file['error'] !== UPLOAD_ERR_OK) {
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$errorMessage = '文件上传失败';
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if ($file) {
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switch ($file['error']) {
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case UPLOAD_ERR_INI_SIZE:
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$errorMessage = '文件大小超过php.ini限制';
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break;
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case UPLOAD_ERR_FORM_SIZE:
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$errorMessage = '文件大小超过表单限制';
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break;
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case UPLOAD_ERR_PARTIAL:
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$errorMessage = '文件只有部分被上传';
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break;
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case UPLOAD_ERR_NO_FILE:
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$errorMessage = '没有文件被上传';
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break;
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case UPLOAD_ERR_NO_TMP_DIR:
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$errorMessage = '找不到临时文件夹';
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break;
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case UPLOAD_ERR_CANT_WRITE:
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$errorMessage = '文件写入失败';
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break;
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}
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}
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echo json_encode([
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'success' => false,
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'message' => $errorMessage
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]);
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exit;
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}
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// 验证文件类型（可选）
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$allowedTypes = ['image/jpeg', 'image/jpg', 'image/png', 'image/gif', 'application/pdf', 'application/msword', 'application/vnd.openxmlformats-officedocument.wordprocessingml.document'];
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if (!in_array($file['type'], $allowedTypes)) {
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echo json_encode([
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'success' => false,
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'message' => '不支持的文件类型：' . $file['type']
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]);
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exit;
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}
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// 验证文件大小（限制为10MB）
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$maxFileSize = 10 * 1024 * 1024; // 10MB
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if ($file['size'] > $maxFileSize) {
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echo json_encode([
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'success' => false,
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'message' => '文件大小超过限制（最大10MB）'
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]);
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exit;
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}
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try {
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// 创建年月目录
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$yearMonth = date('Ym');
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$uploadDir = "../upload/{$yearMonth}/";
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// 如果目录不存在则创建
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if (!is_dir($uploadDir)) {
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if (!mkdir($uploadDir, 0755, true)) {
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throw new Exception('无法创建目录：' . $uploadDir);
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}
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}
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// 生成唯一文件名
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$fileExtension = pathinfo($file['name'], PATHINFO_EXTENSION);
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$uniqueFileName = $uploadFileName . '_' . time() . '_' . uniqid() . '.' . $fileExtension;
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$filePath = $uploadDir . $uniqueFileName;
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// 移动上传的文件
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if (!move_uploaded_file($file['tmp_name'], $filePath)) {
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throw new Exception('文件保存失败');
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}
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// 如果是图片，生成缩略图
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$thumbnailPath = '';
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if (in_array($file['type'], ['image/jpeg', 'image/jpg', 'image/png', 'image/gif'])) {
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$thumbnailPath = $uploadDir . 's_' . $uniqueFileName;
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createThumbnail($filePath, $thumbnailPath, 100, 0);
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}
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// 返回成功信息
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$response = [
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'success' => true,
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'message' => '文件上传成功',
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'data' => [
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'originalName' => $file['name'],
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'fileName' => $uniqueFileName,
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'filePath' => str_replace('../', 'https://sys.966120.com.cn/', $filePath),
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'thumbnailPath' => $thumbnailPath ? str_replace('../', 'https://sys.966120.com.cn/', $thumbnailPath) : '',
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'fileSize' => $file['size'],
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'fileType' => $file['type'],
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'uploadTime' => date('Y-m-d H:i:s')
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]
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];
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echo json_encode($response);
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} catch (Exception $e) {
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echo json_encode([
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'success' => false,
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'message' => '上传失败：' . $e->getMessage()
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]);
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}
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/**
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* 创建缩略图
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* @param string $sourcePath 源图片路径
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* @param string $targetPath 目标缩略图路径
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* @param int $width 宽度
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* @param int $height 高度（0表示按比例缩放）
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*/
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function createThumbnail($sourcePath, $targetPath, $width, $height) {
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$imageInfo = getimagesize($sourcePath);
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if (!$imageInfo) {
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return false;
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}
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$sourceWidth = $imageInfo[0];
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$sourceHeight = $imageInfo[1];
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$imageType = $imageInfo[2];
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// 计算缩略图尺寸
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if ($height == 0) {
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$height = floor($width / $sourceWidth * $sourceHeight);
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} elseif ($width == 0) {
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$width = floor($height / $sourceHeight * $sourceWidth);
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}
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// 创建源图像
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switch ($imageType) {
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case IMAGETYPE_GIF:
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$sourceImage = imagecreatefromgif($sourcePath);
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break;
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case IMAGETYPE_JPEG:
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$sourceImage = imagecreatefromjpeg($sourcePath);
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break;
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case IMAGETYPE_PNG:
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$sourceImage = imagecreatefrompng($sourcePath);
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break;
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default:
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return false;
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}
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if (!$sourceImage) {
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return false;
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}
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// 创建缩略图
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$thumbnailImage = imagecreatetruecolor($width, $height);
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// 保持PNG透明度
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if ($imageType == IMAGETYPE_PNG) {
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imagealphablending($thumbnailImage, false);
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imagesavealpha($thumbnailImage, true);
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$transparent = imagecolorallocatealpha($thumbnailImage, 255, 255, 255, 127);
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imagefilledrectangle($thumbnailImage, 0, 0, $width, $height, $transparent);
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}
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// 调整图像大小
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imagecopyresampled($thumbnailImage, $sourceImage, 0, 0, 0, 0, $width, $height, $sourceWidth, $sourceHeight);
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// 保存缩略图
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$result = false;
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switch ($imageType) {
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case IMAGETYPE_GIF:
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$result = imagegif($thumbnailImage, $targetPath);
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break;
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case IMAGETYPE_JPEG:
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$result = imagejpeg($thumbnailImage, $targetPath, 90);
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break;
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case IMAGETYPE_PNG:
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$result = imagepng($thumbnailImage, $targetPath, 9);
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break;
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}
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// 释放内存
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imagedestroy($sourceImage);
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imagedestroy($thumbnailImage);
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return $result;
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}
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?>
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