jQuery+php+ajax+PHPExcel实现上传excel文件导入数据库

        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：

1. <scripttype="text/javascript"src="/js/lib/jquery.ajax.form.js"></script>

视图文件：goods_list.ctp(商品列表),

1. <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

1. <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：

1. /**
    * [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);
   }

form插件ajaxForm和ajaxSubmit方法传递对象参数说明