public function boot() { //将公共数据库配置合并到 write 与 read 中 $config = \Config::getExtName('database', ['write', 'read']); if (empty($config['write'])) { $config['write'][] = \Config::getExtName('database', ['write', 'read']); } if (empty($config['read'])) { $config['read'][] = \Config::getExtName('database', ['write', 'read']); } \Config::set('database', $config); }