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Codeigniter使用phpexcel

1. 去 http://phpexcel.codeplex.com/ 下载phpexcel源码，解压缩后把phpexcel/Classes里的PHPExcel文件夹和PHPExcel.php复制到CI的application/libraries文件夹内。目录结构如下：

---application/libraries/PHPExcel.php

---application/libraries/PHPExcel(文件夹)

2. 修改application/libraries/PHPExcel/IOFactory.php文件：将其类名从PHPExcel_IOFactory改为IOFactory，遵从CI类命名规则；将其构造函数改为public

3. 在CI内phpexcel的使用：

//加载PHPExcel的类 $this->load->library('PHPExcel'); $this->load->library('PHPExcel/IOFactory'); //创建PHPExcel实例 $excel = new PHPExcel(); //下面介绍项目中用到的几个关于excel的操作 //为单元格赋值 $excel->getActiveSheet()->setCellValue('A1','aaa'); //合并单元格 $excel->getActiveSheet()->mergeCells('A1:A2'); //设置单元格内文字垂直居中 $excel->getActiveSheet()->getStyle('A1')->getAlignment()->setVertical(PHPExcel_Style_Alignment::VERTICAL_CENTER); //设置单元格内文字自动换行 $excel->getActiveSheet()->getStyle('A1')->getAlignment()->setWrapText(true); //为单元格添加注释 $excel->getActiveSheet()->getComment('A1')->getText()->createTextRun('hello'); //设置单元格文字颜色 $excel->getActiveSheet()->getStyle('A1')->getFont()->getColor->setARGB(PHPExcel_Style_Color::COLOR_RED); //输出到浏览器 $write = new PHPExcel_Writer_Excel2007($excel); header("Pragma: public"); header("Expires: 0"); header("Cache-Control:must-revalidate, post-check=0, pre-check=0"); header("Content-Type:application/force-download"); header("Content-Type:application/vnd.ms-execl"); header("Content-Type:application/octet-stream"); header("Content-Type:application/download"); header('Content-Disposition:attachment;filename="test.xlsx"'); header("Content-Transfer-Encoding:binary"); $write->save('php://output');