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261 lines
9.7 KiB
261 lines
9.7 KiB
9 months ago
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<?php
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namespace addons\shopro\library;
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use PhpOffice\PhpSpreadsheet\Spreadsheet;
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use PhpOffice\PhpSpreadsheet\Writer\Xlsx;
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use PhpOffice\PhpSpreadsheet\Style\Alignment;
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use PhpOffice\PhpSpreadsheet\Style\Border;
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use Cache\Adapter\Redis\RedisCachePool;
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use Cache\Bridge\SimpleCache\SimpleCacheBridge;
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use PhpOffice\PhpSpreadsheet\Settings;
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use addons\shopro\library\Redis;
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class Export
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{
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protected $last_memory_limit = '256M';
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protected $config = [
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'save_type' => 'download', // 保存方式，download:直接下载， save:保存到服务器
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'list_rows' => 1000, // 每次查询数据条数
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'save_path' => RUNTIME_PATH . 'storage/export/', // 如果保存到服务器，保存路径
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'memory_limit' => '512M', // php 进程内存限制(仅在导出过程生效), 注意单位 M
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'time_limit' => 0, // php 超时时间，单位秒，0 不限制
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'cache_driver' => 'default', // 数据临时存储驱动，default:内存, redis:redis
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'redis_select' => null, // 导出大数据时，请尽量配置一个空的 redis db 库(导出失败，可以随时清除)，以免导出失败，db 库中被存入大量垃圾数据
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];
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public function __construct()
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{
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$this->config['time_limit'] = intval($this->config['time_limit']);
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$this->config['list_rows'] = intval($this->config['list_rows']) ? intval($this->config['list_rows']) : 1000;
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// 设置导出限制
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$this->setLimit();
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// 设置导出时缓存
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$this->setCache();
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}
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/**
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* 导出
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*
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* @param array $params
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* @param \Closure $callback
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* @return void
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*/
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public function export($params, \Closure $callback)
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{
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$fileName = $params['file_name']; // 文件名
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$cellTitles = $params['cell_titles']; // 标题
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$cell_num = count($cellTitles); // 标题数量
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$total = $params['total']; // 记录总条数
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$is_sub_cell = $params['is_sub_cell'] ?? false; // 是否有子数据
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$sub_start_cell = $params['sub_start_cell'] ?? null; // 子数据开始字段
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$sub_field = $params['sub_field'] ?? null; // 子数据字段名
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$cellName = array('A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'AA', 'AB', 'AC', 'AD', 'AE', 'AF', 'AG', 'AH', 'AI', 'AJ', 'AK', 'AL', 'AM', 'AN', 'AO', 'AP', 'AQ', 'AR', 'AS', 'AT', 'AU', 'AV', 'AW', 'AX', 'AY', 'AZ');
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$last_cell_key = $cellName[$cell_num - 1]; // 最后一列的标头
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// 最后一页
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$last_page = intval(ceil($total / $this->config['list_rows']));
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// 实例化excel
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$spreadsheet = new Spreadsheet();
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// 初始化工作簿
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$sheet = $spreadsheet->getActiveSheet(0);
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// 给表头字体加粗
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$sheet->getStyle('A1:' . $last_cell_key . '1')->getFont()->setBold(true);
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// 表头
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$i = 0;
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foreach ($cellTitles as $key => $cell) {
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$sheet->setCellValue($cellName[$i] . '1', $cell);
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$i++;
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}
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$cell_total = 2; // 当前表格已有行数
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for($page = 1;$page <= $last_page;$page++) {
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$is_last_page = $page == $last_page ? true : false;
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// 获取数据
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$datas = $callback([
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'page' => $page,
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'list_rows' => $this->config['list_rows'],
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'is_last_page' => $is_last_page
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]);
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foreach ($datas as $key => $data) {
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if ($is_last_page && $key == count($datas) - 1 && (!is_array($data) || count($data) == 1)) {
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$total_text = is_array($data) ? current($data) : $data;
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$sheet->mergeCells('A' . $cell_total . ':' . $last_cell_key . $cell_total);
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$sheet->setCellValue('A' . $cell_total, $total_text);
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} else {
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$items_count = 1;
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if ($is_sub_cell) {
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$items_count = count($data[$sub_field]);
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}
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$items_count = $items_count >= 1 ? $items_count : 1;
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// 每条记录设置边框
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// $sheet->getStyle('A' . ($cell_total).':' . $last_cell_key . ($cell_total + $items_count - 1))->getBorders()->getAllBorders()->setBorderStyle(Border::BORDER_THIN);
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$i = 0; // 当前循环到第几列了
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$sub_start = false;
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foreach ($cellTitles as $k => $cell) {
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if ($k == $sub_start_cell) {
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// 如果有子数据，是否循环到了子数据
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$sub_start = true;
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}
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if ($is_sub_cell) {
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if (!$sub_start) {
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// 循环主数据
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$current_text = $data[$k] ?? '';
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if ($items_count > 1) {
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// items 有多个，需要合并单元格
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$sheet->mergeCells($cellName[$i] . ($cell_total) . ':' . $cellName[$i] . ($cell_total + $items_count - 1));
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$sheet->getCell($cellName[$i] . ($cell_total))->getStyle()->getAlignment()->setVertical(Alignment::VERTICAL_CENTER);
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}
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$sheet->setCellValue($cellName[$i] . ($cell_total), $current_text);
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} else {
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// 循环子数据
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foreach ($data[$sub_field] as $j => $sub) {
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$current_text = $sub[$k] ?? '';
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$sheet->setCellValue($cellName[$i] . ($cell_total + $j), $current_text);
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}
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}
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} else {
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$current_text = $data[$k] ?? '';
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$sheet->setCellValue($cellName[$i] . $cell_total, $current_text);
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}
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$i++;
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}
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// 增加数据写入条数
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$cell_total = $cell_total + $items_count;
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}
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}
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}
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// 设置表格边框
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$sheet->getStyle('A1:' . $last_cell_key . $cell_total)->getBorders()->getAllBorders()->setBorderStyle(Border::BORDER_THIN);
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// ini_set('memory_limit', '256M');
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return $this->output($spreadsheet, $fileName);
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}
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/**
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* 输出
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*
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* @param object $spreadsheet
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* @param string $fileName
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* @return void
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*/
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public function output($spreadsheet, $fileName)
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{
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$class_name = '\\PhpOffice\\PhpSpreadsheet\\Writer\\Xlsx';
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if (!class_exists($class_name)) {
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error_stop('文件输出格式不支持');
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}
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if ($this->config['save_type'] == 'save') {
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// 初始化目录
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if (!is_dir($this->config['save_path'])) {
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@mkdir($this->config['save_path'], 0755, true);
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}
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$save_file = $this->config['save_path'] . $fileName . '-' . date('YmdHis') . '.xlsx';
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$result = [
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'file_path' => str_replace(ROOT_PATH, '项目目录/', $save_file)
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];
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} else {
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$save_file = $fileName . '-' . date('YmdHis') . '.xlsx';
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$result = [
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'file_name' => $save_file
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];
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ob_end_clean();
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header('pragma:public');
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header("Content-type:application/octet-stream; charset=utf-8; name=" . urlencode($save_file));
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header("Content-Disposition:attachment; filename=" . urlencode($save_file)); //attachment新窗口打印inline本窗口打印
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$save_file = 'php://output';
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}
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$writer = new $class_name($spreadsheet);
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$writer->save($save_file);
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return $result;
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// 修改为原始内存限制，会影响文件下载，暂时不修改回原来内存
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// ini_set('memory_limit', $this->last_memory_limit);
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}
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/**
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* 设置php 进程内存限制
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*
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* @return void
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*/
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public function setLimit()
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{
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// 不限时
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set_time_limit($this->config['time_limit']);
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// 根据需要调大内存限制
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$this->last_memory_limit = ini_get('memory_limit');
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ini_set('memory_limit', $this->config['memory_limit']);
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}
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/**
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* 设置导出临时缓存
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*
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* @return void
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*/
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public function setCache()
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{
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// 设置缓存
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if ($this->config['cache_driver'] == 'redis') {
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// 将表格数据暂存 redis,可以降低 php 进程内存占用
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if (!class_exists(RedisCachePool::class)) {
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// 需要安装扩展包 composer require cache/simple-cache-bridge cache/redis-adapter
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error_stop('请安装扩展包：composer require cache/simple-cache-bridge cache/redis-adapter');
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}
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if (is_null($this->config['redis_select'])) {
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error_stop('请在 addons/shopro/library/Export.php 文件，defaultConfig 中配置 redis_select 库');
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}
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$options = [
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'select' => $this->config['redis_select']
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];
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$redis = (new Redis($options))->getRedis(); // 不冲突
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$pool = new RedisCachePool($redis);
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$simpleCache = new SimpleCacheBridge($pool);
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Settings::setCache($simpleCache);
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}
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}
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public function getConfig()
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{
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return $this->config;
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}
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}
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