2019独角兽企业重金招聘Python工程师标准>>> 
之前做健康档案系统时，有一个将统计的数据批量导出到Excel的需求，后来实现后就没怎么做记录，最近一个小伙伴问我这块的问题，我觉得有必要将这块的东西写下来和大家分享和学习下，这段时间真的是太忙了，所以博客这块也没能及时更新，望见谅。
下面进入正题，在需求这块，有一个统计展示，统计出按条件搜索出来的所有信息，现在是要将这些数据都导入到Excel表格中，方便给领导看需要的数据。我这块的思路是首先获取表头的数据，获取数据库中对应的数据信息，注意这块的数据要和表头的信息是对应的，然后根据表头信息数量来确定插入的数据量，设置部分Excel表格样式，最后是通过浏览器输出给用户。
下面是部分代码段，由于时间关系，我只解释部分代码段
//生成excle文件
function generateExcel($param){
$objExcel = new PHPExcel();
$i=0;
//表头
$k1="民警编号";
$k2="民警姓名";
$k3="性别";
$k4="出生日期";
$k5="部门";
$k6="体检时间";
$k7="住院时间";
$k8="出院时间";
$k9="病种";
$k10="残疾状况";
$k11="受伤时间";
$k12="培训时间";
$k13="培训结果";
$k14="资质级别";
$objExcel->getActiveSheet()->setCellValue('a1', "$k1");
$objExcel->getActiveSheet()->setCellValue('b1', "$k2");
$objExcel->getActiveSheet()->setCellValue('c1', "$k3");
$objExcel->getActiveSheet()->setCellValue('d1', "$k4");
$objExcel->getActiveSheet()->setCellValue('e1', "$k5");
$objExcel->getActiveSheet()->setCellValue('f1', "$k6");
$objExcel->getActiveSheet()->setCellValue('g1', "$k7");
$objExcel->getActiveSheet()->setCellValue('h1', "$k8");
$objExcel->getActiveSheet()->setCellValue('i1', "$k9");
$objExcel->getActiveSheet()->setCellValue('j1', "$k10");
$objExcel->getActiveSheet()->setCellValue('k1', "$k11");
$objExcel->getActiveSheet()->setCellValue('l1', "$k12");
$objExcel->getActiveSheet()->setCellValue('m1', "$k13");
$objExcel->getActiveSheet()->setCellValue('n1', "$k14");
$policehealthstatistics = new Policehealth_statistics();
$links_list = $policehealthstatistics->getConditionInformationExcle($param);
foreach($links_list as $k=>$v) {
$u1=$i+2;
/*----------写入内容-------------*/
$objExcel->getActiveSheet()->setCellValue('a'.$u1, $v["policenum"]);
$objExcel->getActiveSheet()->setCellValue('b'.$u1, $v["realname"]);
$objExcel->getActiveSheet()->setCellValue('c'.$u1, $v["sex"]);
$objExcel->getActiveSheet()->setCellValue('d'.$u1, $v["csrq"]);
$objExcel->getActiveSheet()->setCellValue('e'.$u1, $v["department"]);
$objExcel->getActiveSheet()->setCellValue('f'.$u1, $v["tjsj"]);
$objExcel->getActiveSheet()->setCellValue('g'.$u1, $v["zysj"]);
$objExcel->getActiveSheet()->setCellValue('h'.$u1, $v["cysj"]);
$objExcel->getActiveSheet()->setCellValue('i'.$u1, $v["bz"]);
$objExcel->getActiveSheet()->setCellValue('j'.$u1, $v["cjjb"]);
$objExcel->getActiveSheet()->setCellValue('k'.$u1, $v["sssj"]);
$objExcel->getActiveSheet()->setCellValue('l'.$u1, $v["pxsj"]);
$objExcel->getActiveSheet()->setCellValue('m'.$u1, $v["pxjg"]);
$objExcel->getActiveSheet()->setCellValue('n'.$u1, $v["zzjb"]);
$i++;
}
// 高置列的宽度
$objExcel->getActiveSheet()->getColumnDimension('A')->setWidth(15);
$objExcel->getActiveSheet()->getColumnDimension('B')->setWidth(15);
$objExcel->getActiveSheet()->getColumnDimension('C')->setWidth(15);
$objExcel->getActiveSheet()->getColumnDimension('D')->setWidth(15);
$objExcel->getActiveSheet()->getColumnDimension('E')->setWidth(35);
$objExcel->getActiveSheet()->getColumnDimension('F')->setWidth(15);
$objExcel->getActiveSheet()->getColumnDimension('G')->setWidth(15);
$objExcel->getActiveSheet()->getColumnDimension('H')->setWidth(15);
$objExcel->getActiveSheet()->getColumnDimension('I')->setWidth(15);
$objExcel->getActiveSheet()->getColumnDimension('J')->setWidth(15);
$objExcel->getActiveSheet()->getColumnDimension('K')->setWidth(15);
$objExcel->getActiveSheet()->getColumnDimension('L')->setWidth(15);
$objExcel->getActiveSheet()->getColumnDimension('M')->setWidth(15);
$objExcel->getActiveSheet()->getColumnDimension('N')->setWidth(35);
$objExcel->getActiveSheet()->getHeaderFooter()->setOddHeader('&L&BPersonal cash register&RPrinted on &D');
$objExcel->getActiveSheet()->getHeaderFooter()->setOddFooter('&L&B' . $objExcel->getProperties()->getTitle() . '&RPage &P of &N');
// 设置页方向和规模
$objExcel->getActiveSheet()->getPageSetup()->setOrientation(PHPExcel_Worksheet_PageSetup::ORIENTATION_PORTRAIT);
$objExcel->getActiveSheet()->getPageSetup()->setPaperSize(PHPExcel_Worksheet_PageSetup::PAPERSIZE_A4);
$objExcel->setActiveSheetIndex(0);
$timestamp = time();
//导出excel2007文档
// header('Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet');
// header('Pragma:public');
/*header("Content-Type: application/force-download");
header('Content-Disposition: attachment;filename="links_out'.$timestamp.'.xlsx"');
header('Cache-Control: max-age=0');*/
ob_end_clean();//清除缓冲区,避免乱码
header('Content-Type: application/vnd.ms-excel');
header('Content-Disposition: attachment;filename="详情表(' . date('Ymd-His') . ').xls"');
header('Cache-Control: max-age=0');
$objWriter = PHPExcel_IOFactory::createWriter($objExcel, 'Excel2007');
// $fileName = "111.xlsx";
$objWriter->save('php://output');
exit;
由于表头这块之前是固定的格式，所以我没有用动态获取的方式来处理，通过$objExcel->getActiveSheet()->setCellValue('a'.$u1, $v["policenum"]);将从数据库中提取出的信息写入到Excel中，这块有个注意点在setCellValue中的第一个参数不能同名，因为这块是给表格做标识，同名后会导致后面的数据覆盖前面的数据。后面的设置表格样式大家可以去体会，就是对象调用方法的问题，主要说下最后的那个输出方式。$fileName = "111.xlsx";是将生成好的excle文件命名为111.xlsx并输出到当前文件目录中，如果用$objWriter->save('php://output');则是在浏览器窗口中输出。之前我卡在没法在浏览器中进行输出excle文件，由于时间有点久了，具体的原因现在记得不太清楚了，好像是传给前端是json数据，导致后面文件一直没有出来。
如有说的错误或不准确的地方，希望大家指正