yii2.0 利用Excel类做导入导出

1、在 common 目录下 创建一个 components 将 Classes目录（改名为PHPExcel）和PHPExcel.php 放在新创建的目录下。再在 components 下创建一个CommonFunc.php：

          <?php

              namespace common\components;

              use yii;

              class CommonFunc{

                              public static function expor(){

                                         require(Yii::getAlias("@common")."/components/PHPExcel.php");

                                         require(Yii::getAlias("@common")."/components/PHPExcel/Writer/Excel2007.php");

                                         $obj=new \PHPExcel();

                                         $objSheet=$obj->getActiveSheet();           //获取当前sheet活动对象

                                         $objSheet->setTitle("标题");

                                         $objSheet->setCellValue('A1','姓名')->setCellValue('B1','年龄');

                                         $objWriter= new \PHPExcel_Writer_Excel2007($obj);

                                         header("Pragma:public");

                                         header("Content-Type:application/x-msexecl;name=\"{$filename}.xls\"");

                                         header("Content-Disposition:inline;filename=\"{$filename}.xls\"");

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

                              }

              }

           

           ?>

2、任意控制器下：

         use common\components\CommonFunc;

         CommonFunc::exportData();                                    //调用