项目中需要批量导入数据，感觉这个需求以后也会经常用，必须总结分享下：
引入jquery的第三方表单插件：
<scripttype="text/javascript"src="/js/lib/jquery.ajax.form.js"></script>
视图文件：goods_list.ctp(商品列表),
<div class="btnimport">
<form class='myupload' action="<?=$this->Html->url(array('controller'=>'Goods','action'=>'batchImport'))?>" method='post' enctype='multipart/form-data' id="form_<?php echo $good['Good']['id']?>">
<input class="fileupload" type="file" name="importExcel" data-id="<?php echo $good['Good']['id']?>">
</form>
<span>批量导入</span>
</div>
<style type="text/css">
.btnimport{position: relative;overflow: hidden;margin-right: 4px;display:inline-block; *display:inline;padding:4px 10px 4px;font-size:14px;line-height:18px; *line-height:20px;color:#fff; text-align:center;vertical-align:middle;cursor:pointer;background:#5bb75b; border:1px solid #cccccc;background-color: #1fb5ad;; border-bottom-color:#b3b3b3;-webkit-border-radius:4px; border-color: #1fb5ad; -moz-border-radius:4px;border-radius:4px; padding: 5px 10px; font-size: 12px; line-height: 1.5; border-radius: 3px; }
.btnimport input{position: absolute;top: 0; right: 0;margin: 0;border:solid transparent; opacity: 0;filter:alpha(opacity=0); cursor: pointer;}
</style>
使用input样子太丑了，还有个长条框，于是添加CSS修改样子做的和其他按钮样子一样。每个上传对应一个form表单，多个商品对应各自的上传事件，于是在form中添加id="form_<?php echo $good['Good']['id']?>"，这样每个商品的导入就可以调用各自的ajaxSubmit事件。
传入的jquery, 使用ajaxsubmit来提交表单。Jquery表单插件ajaxForm用法详解
<script type="text/javascript">
$(function () {
$(".fileupload").change(function(){
var btnimport = $(".btnimport span");
var id = $(this).data('id');
$("#form_" + id).ajaxSubmit({
dataType: 'json',
data:{id:id},
success: function(data) {
switch(data['code']){
case 0:{
alert("批量导入成功");
//btnimport.html("批量导入"); //按钮还原
window.location.reload();
break;
}
case -6000:{
btnimport.html("上传失败");
alert("上传失败!");
break;
}
case -6001:{
btnimport.html("上传失败");
alert("文件格式不正确!");
break;
}
default:{
alert("系统繁忙，请稍后再试！");
break;
}
}
},
error:function(xhr){
btnimport.html("上传失败");
}
});
});
});
</script>
action中的处理方法：
/**
* [batchImport 批量导入]
* @return [type] [description]
*/
public function batchImport(){
$id = $this->request->data('id');
$DOMAIN = $_SERVER['HTTP_HOST'];
$file = $_FILES;
$filename = $file['importExcel']['name'];
$file_temp_name =$file['importExcel']['tmp_name'];
$dir = WWW_ROOT.'/files' . DS . 'xls';
$type = strstr($filename,'.');
if($type != '.xls' && $type != '.xlsx'){
$this->_err_ret(-6001,'sys err');
}
if(is_uploaded_file($file_temp_name)){ $full_name = $dir.DS. date ( 'Y-m-d_h:i:s' ).'_'.$filename;
$result = move_uploaded_file($file_temp_name, $full_name);
//处理文件路径，便于访问
//$full_name = explode('webroot/', $full_name);
//$full_name = 'http://' . $DOMAIN .'/aaa/bbb'.$full_name[1];
}else{
$this->_err_ret(-6000,'err');
}
//如果上传文件成功，就执行导入 excel操作
$objReader = PHPExcel_IOFactory::createReaderForFile($full_name);
$objPHPExcel = $objReader->load($full_name);
$objPHPExcel->setActiveSheetIndex(0);
$sheet = $objPHPExcel->getSheet(0);
$highestRow = $sheet->getHighestRow(); // 取得总行数
$test = $objPHPExcel->getActiveSheet()->getCell('A2')->getValue();
$data = array();
for ($i=2; $i <= $highestRow ; $i++) {
$sn = $objPHPExcel->getActiveSheet()->getCell('A'.$i)->getValue();
$pwd = $objPHPExcel->getActiveSheet()->getCell('B'.$i)->getValue();
$this->Card->create();
$data = array(
'sn' => $sn,
'pwd' => $pwd,
'good_id' => $id,
);
if(!$this->Card->save($data)){
$this->_err_ret(-6000,'err');
exit;
}
}
$newNumber = (int)$this->Good->findById($id)['Good']['number']+(int)$highestRow-1;
$this->Good->id = $id;
if(!$this->Good->saveField('number',$newNumber)){
$this->_err_ret(-6000,'err');
}
$this->_suc_ret($id);
}