<form action="{:U('Index/impUser')}" method="post" enctype="multipart/form-data">

      <input type="file" name="import"/>

      <input type="submit" value="提交"/>

</form>

function impUser(){

        if (!empty($_FILES)) {

            //import("@.ORG.UploadFile");

            $config=array(

                'exts'=>array('xlsx','xls'),

                'rootPath'=>"./Public/",

                'savePath'=>'Upload/',

                //'autoSub'    =>    true,

            );

            $upload = new \Think\Upload($config);

            if (!$info=$upload->upload()) {

                $this->error($upload->getError());

            } /*else {

                //$info = $upload->getUploadFileInfo();

            }

            */

            vendor("PHPExcel.PHPExcel");

            $file_name=$upload->rootPath.$info['import']['savepath'].$info['import']['savename'];

            // var_dump($file_name);

            // exit;

            $objReader = \PHPExcel_IOFactory::createReader('Excel5');

            $objPHPExcel = $objReader->load($file_name,$encode='utf-8');

            $sheet = $objPHPExcel->getSheet(0);

            $highestRow = $sheet->getHighestRow(); // 取得总行数

            $highestColumn = $sheet->getHighestColumn(); // 取得总列数

            for($i=4;$i<=$highestRow;$i++)

            {

                $data['name'] = $objPHPExcel->getActiveSheet()->getCell("B".$i)->getValue();

                $data['age'] = $objPHPExcel->getActiveSheet()->getCell("C".$i)->getValue();

                $data['school']= $objPHPExcel->getActiveSheet()->getCell("D".$i)->getValue();=$data['jion_time']= gmdate("Y-m-d H:i:s", \PHPExcel_Shared_Date::ExcelToPHP($objPHPExcel->getActiveSheet()->getCell("M".$i)->getValue()));//其中gmdate函数是对excel表格中的时间进行格式化处理

                M('detail_config')->add($data);

            }

            $this->success('导入成功！','index');

        }else

        {

            $this->error("请选择上传的文件");

        }

    }

<a href="{:U('Index/expUser')}">导出数据并生成excel</a>

//统计数据自动化导出EXCEL

    public function exportExcel($expTitle,$expCellName,$expTableData){

        $xlsTitle = iconv('utf-8', 'gb2312', $expTitle);//文件名称

        $fileName = $_SESSION['admin']['username'].date('_YmdHis');//or $xlsTitle 文件名称可根据自己情况设定

        $cellNum = count($expCellName);

        $dataNum = count($expTableData);

        vendor("PHPExcel.PHPExcel");

        $objPHPExcel = new \PHPExcel();

        $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', $expTitle.'  Export time:'.date('Y-m-d H:i:s'));

        for($i=0;$i<$cellNum;$i++){

            $objPHPExcel->setActiveSheetIndex(0)->setCellValue($cellName[$i].'2', $expCellName[$i][1]);

        }

        // 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][$expCellName[$j][0]]);

            }

        }

        header('pragma:public');

        header('Content-type:application/vnd.ms-excel;charset=utf-8;name="'.$xlsTitle.'.xls"');

        header("Content-Disposition:attachment;filename=$fileName.xls");//attachment新窗口打印inline本窗口打印

        $objWriter = \PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel5');

        $objWriter->save('php://output');

        exit;

    }

    public function expUser(){//导出Excel

        $xlsName  = "admin";

        $xlsCell  = array(

        array('id','序列号'),

        array('name','姓名'),

        array('age','年龄'),

        array('school','学校')

        );

        $xlsModel = M('Index');

        $xlsData  = $xlsModel->Field('id,name,age,school')->select();

        $this->exportExcel($xlsName,$xlsCell,$xlsData);

    }