onethink导出excel

function customer_daochu()
    {
         /**
         * 客户名单导出
         *
         */
        $customer = D('WcoaUCustomers');
        $data = $customer->join("customers_system p on customers.customersid = p.customers_system_id ")->field("customersid,customername,customercode,phone,belong_deptid,belong_employeesid")->select();
        $list = array();
        $list1 = array();
        foreach($data as $v)
        {
            $list1[0] = $v['customersid'];
            $list1[1] = $v['customername'];
            $list1[2] = $v['customercode'];
            $list1[3] = $v['phone'];
            $dept = D('Dept')->field('deptname')->where("deptid = {$v['belong_deptid']}")->find();
            $list1[4] = $dept['deptname'];
            $em = D('Employees')->field('employeename')->where("employeesid = {$v['belong_employeesid']}")->find();
            $list1[5] = $em['employeename'];
            array_push($list,$list1);
        }
        $headArr = array('id','姓名','编号','手机','所属部门','所属员工');
        $fileName = "customer";
        $this->exportExcel($fileName,$headArr,$list);
    }
public function exportExcel($expTitle,$expCellName,$expTableData)        //$expTitle=>表的主题，$expCellName=>表头名(列名)，$expTableData=>数据(以下采用数字索引数组)
    {
        $xlsTitle = iconv('utf-8', 'gb2312', $expTitle);//文件名称
        $fileName = '客户表'.date('_YmdHis');//or $xlsTitle 文件名称可根据自己情况设定
        $cellNum = count($expCellName);        //多少列
        $dataNum = count($expTableData);        //多少行
        Vendor("PHPExcel");

        $objPHPExcel = new \PHPExcel();            //初始化
        $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');

        $objPHPExcel->getActiveSheet(0)->mergeCells('A1:'.$cellName[$cellNum-1].'1');//合并单元格
        $objPHPExcel->setActiveSheetIndex(0)->setCellValue('A1', $fileName);    //标题
        for($i=0;$i<$cellNum;$i++){
            $objPHPExcel->setActiveSheetIndex(0)->setCellValue($cellName[$i].'2', $expCellName[$i]);     //表头(列名)
        }
          // Miscellaneous glyphs, UTF-8
        for($i=0;$i<$dataNum;$i++){
          for($j=0;$j<$cellNum;$j++){
            $objPHPExcel->getActiveSheet(0)->setCellValue($cellName[$j].($i+3), $expTableData[$i][$j]);            //内容
          }
        }
        //可以改格式，剩下不懂了
        header('pragma:public');
        header('Content-type:application/vnd.ms-excel;charset=utf-8;name="'.$xlsTitle.'.xlsx"');
        header("Content-Disposition:attachment;filename=$fileName.xlsx");//attachment新窗口打印inline本窗口打印
        $objWriter = \PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel2007');
        $objWriter->save('php://output');
        exit;
    }

PHPExcel的存放位置跟导入excel位置一样！