`

/** * 导入 */public function import(){    $file = $this->request->request('file');    if (!$file) {        $this->error(__('Parameter %s can not be empty', 'file'));    }    $filePath = ROOT_PATH . DS . 'public' . DS . $file;    if (!is_file($filePath)) {        $this->error(__('No results were found'));    }    //实例化reader    $ext = pathinfo($filePath, PATHINFO_EXTENSION);    if (!in_array($ext, ['csv', 'xls', 'xlsx'])) {        $this->error(__('Unknown data format'));    }    if ($ext === 'csv') {        $file = fopen($filePath, 'r');        $filePath = tempnam(sys_get_temp_dir(), 'import_csv');        $fp = fopen($filePath, "w");        $n = 0;        while ($line = fgets($file)) {            $line = rtrim($line, "nr");            $encoding = mb_detect_encoding($line, ['utf-8', 'gbk', 'latin1', 'big5']);            if ($encoding != 'utf-8') {                $line = mb_convert_encoding($line, 'utf-8', $encoding);            }            if ($n == 0 || preg_match('/^".*"$/', $line)) {                fwrite($fp, $line . "n");            } else {                fwrite($fp, '"' . str_replace(['"', ','], ['""', '","'], $line) . ""n");            }            $n++;        }        fclose($file) || fclose($fp);        $reader = new Csv();    } elseif ($ext === 'xls') {        $reader = new Xls();    } else {        $reader = new Xlsx();    }    //导入文件首行类型,默认是注释,如果需要使用字段名称请使用name    $importHeadType = isset($this->importHeadType) ? $this->importHeadType : 'comment';    $table = $this->model->getQuery()->getTable();    $database = thinkConfig::get('database.database');    $fieldArr = [];    $list = db()->query("SELECT COLUMN_NAME,COLUMN_COMMENT FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = ? AND TABLE_SCHEMA = ?", [$table, $database]);    foreach ($list as $k => $v) {        if ($importHeadType == 'comment') {            $fieldArr[$v['COLUMN_COMMENT']] = $v['COLUMN_NAME'];        } else {            $fieldArr[$v['COLUMN_NAME']] = $v['COLUMN_NAME'];        }    }    //加载文件    $insert = [];    try {        if (!$PHPExcel = $reader->load($filePath)) {            $this->error(__('Unknown data format'));        }        $currentSheet = $PHPExcel->getSheet(0);  //读取文件中的第一个工作表        $allColumn = $currentSheet->getHighestDataColumn(); //取得最大的列号        $allRow = $currentSheet->getHighestRow(); //取得一共有多少行        $maxColumnNumber = Coordinate::columnIndexFromString($allColumn);        $fields = [];        for ($currentRow = 1; $currentRow <= 1; $currentRow++) {            for ($currentColumn = 1; $currentColumn <= $maxColumnNumber; $currentColumn++) {                $val = $currentSheet->getCellByColumnAndRow($currentColumn, $currentRow)->getValue();                $fields[] = $val;            }        }        for ($currentRow = 2; $currentRow <= $allRow; $currentRow++) {            $values = [];            for ($currentColumn = 1; $currentColumn <= $maxColumnNumber; $currentColumn++) {                $val = $currentSheet->getCellByColumnAndRow($currentColumn, $currentRow)->getValue();                $values[] = is_null($val) ? '' : $val;            }            //删除空行            if (!implode('', $values)) {                continue;            }            $row = [];            $temp = array_combine($fields, $values);            foreach ($temp as $k => $v) {                if (isset($fieldArr[$k]) && $k !== '') {                    $row[$fieldArr[$k]] = $v;                }            }            if ($row) {                $insert[] = $row;            }        }    } catch (Exception $exception) {        $this->error($exception->getMessage());    }    if (!$insert) {        $this->error(__('No rows were updated'));    }    try {        //是否包含admin_id字段        $has_admin_id = false;        foreach ($fieldArr as $name => $key) {            if ($key == 'admin_id') {                $has_admin_id = true;                break;            }        }        if ($has_admin_id) {            $auth = Auth::instance();            foreach ($insert as &$val) {                if (!isset($val['admin_id']) || empty($val['admin_id'])) {                    $val['admin_id'] = $auth->isLogin() ? $auth->id : 0;                }            }        }        AdminLog::setTitle(__('Import'));        $this->model->saveAll($insert);    } catch (PDOException $exception) {        $msg = $exception->getMessage();        if (preg_match("/.+Integrity constraint violation: 1062 Duplicate entry '(.+)' for key '(.+)'/is", $msg, $matches)) {            $msg = "导入失败，包含【{$matches[1]}】的记录已存在";        };        $this->error($msg);    } catch (Exception $e) {        $this->error($e->getMessage());    }    $this->success();}`

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