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easyadmin视频教程,easyadmin前端事例

时间:2023-05-03 23:01:03 阅读:203942 作者:3571

这是我写的学习EasyAdmin的第七章,这一章我给大家分享下如何处理excel中的数据,图片 原理就是使用easyadmin中封装好的phpexcel,来进行数据的导入,view层我们需要一个用了导入excel的页面,代码如下: <div class="layuimini-container"> <form id="app-form" class="layui-form layuimini-form"> <div class="layui-form-item"> <label class="layui-form-label">导入excel:</label> <div class="layui-input-block"> <button type="button" class="layui-btn" id="test1"> <i class="layui-icon"></i>上传文件 </button> </div> </div> </form></div><script src="/static/plugs/layui-v2.5.6/layui.all.js?v=2.0.0" charset="utf-8"></script><script src="/static/plugs/jquery-3.4.1/jquery-3.4.1.min.js?v=2.0.0" charset="utf-8"></script><script>layui.use('upload', function(){ var upload = layui.upload; var loading; //执行实例 var uploadInst = upload.render({ elem: '#test1' //绑定元素 ,url: '/admin/mall.goodsone/import' //上传接口 ,accept: 'file' ,choose:function(){ loading = layer.load(0, { shade: false, time: 60*60*1000 }); } ,done: function(res){ //上传完毕回调 layer.close(loading); if(res.msg == '导入成功'){ layer.msg(res.msg); } } ,error: function(){ layer.close(loading); //请求异常回调 } });});</script> js中加入以下代码:

 接下来就是重点,controller部分的代码,这里先在前面导入easyadmin封装好的phpexcel use EasyAdmintoolCommonTool;use jianyanexcelExcel; 在方法里写入下面代码 $file = request()->file('file'); ini_set('memory_limit','1024M'); $data = Excel::import($file); $data里就是处理好的数据数组,但是实际用的时候会发现,图片没法识别,这里给出解决方法,亲测有用,大家可以照着思路来就行 PHPSpreadsheet 首先安装phpspreadsheet,由于线上服务器PHP版本是PHP5.6,所以需要安装兼容PHP5.6的版本,这里安装1.8.2版本 composer require phpoffice/phpspreadsheet=1.8.2 然后就可以在项目里使用了 use PhpOfficePhpSpreadsheetCellCoordinate;use PhpOfficePhpSpreadsheetIOFactory;$imageFilePath = './uploads/imgs/'; //图片本地存储的路径if (!file_exists($imageFilePath)) { //如果目录不存在则递归创建 mkdir($imageFilePath, 0777, true);}try { $inputFileName = './files/1.xlsx'; //包含图片的Excel文件 $objRead = IOFactory::createReader('Xlsx'); $objSpreadsheet = $objRead->load($inputFileName); $objWorksheet = $objSpreadsheet->getSheet(0); $data = $objWorksheet->toArray(); foreach ($objWorksheet->getDrawingCollection() as $drawing) { list($startColumn, $startRow) = Coordinate::coordinateFromString($drawing->getCoordinates()); $imageFileName = $drawing->getCoordinates() . mt_rand(1000, 9999); switch ($drawing->getExtension()) { case 'jpg': case 'jpeg': $imageFileName .= '.jpg'; $source = imagecreatefromjpeg($drawing->getPath()); imagejpeg($source, $imageFilePath . $imageFileName); break; case 'gif': $imageFileName .= '.gif'; $source = imagecreatefromgif($drawing->getPath()); imagegif($source, $imageFilePath . $imageFileName); break; case 'png': $imageFileName .= '.png'; $source = imagecreatefrompng($drawing->getPath()); imagepng($source, $imageFilePath, $imageFileName); break; } $startColumn = ABC2decimal($startColumn); $data[$startRow-1][$startColumn] = $imageFilePath . $imageFileName; } dump($data);die();} catch (Exception $e) { throw $e;}public function ABC2decimal($abc){ $ten = 0; $len = strlen($abc); for($i=1;$i<=$len;$i++){ $char = substr($abc,0-$i,1);//反向获取单个字符 $int = ord($char); $ten += ($int-65)*pow(26,$i-1); } return $ten;} 可以看到,图片被读取并存到了本地服务器中

PHPExcel PHPExcel实现从Excel文件里读取内容的方法和phpspreadsheet几乎一样,毕竟phpspreadsheet就是在PHPExcel基础上写的,不过PHPExcel由于已经被废弃了,所以建议优先使用phpspreadsheet,如果原来项目里一直使用了PHPExcel也可以继续使用PHPExcel的方法 use PHPExcel_IOFactory;use PHPExcel_Cell;try { $inputFileName = './files/1.xlsx'; $inputFileType = PHPExcel_IOFactory::identify($inputFileName); $objReader = PHPExcel_IOFactory::createReader($inputFileType); $objPHPExcel = $objReader->load($inputFileName);} catch (Exception $e) { die('加载文件发生错误:"'.pathinfo($inputFileName,PATHINFO_BASENAME).'": '.$e->getMessage());}$sheet = $objPHPExcel->getSheet(0);$data = $sheet->toArray(); //该方法读取不到图片,图片需单独处理$imageFilePath = './uploads/imgs/'; //图片本地存储的路径if (!file_exists($imageFilePath)) { mkdir($imageFilePath, 0777, true);}//处理图片foreach ($sheet->getDrawingCollection() as $img) { list($startColumn, $startRow) = PHPExcel_Cell::coordinateFromString($img->getCoordinates()); //获取图片所在行和列 $imageFileName = $img->getCoordinates() . mt_rand(1000, 9999); switch($img->getExtension()) { case 'jpg': case 'jpeg': $imageFileName .= '.jpeg'; $source = imagecreatefromjpeg($img->getPath()); imagejpeg($source, $imageFilePath.$imageFileName); break; case 'gif': $imageFileName .= '.gif'; $source = imagecreatefromgif($img->getPath()); imagejpeg($source, $imageFilePath.$imageFileName); break; case 'png': $imageFileName .= '.png'; $source = imagecreatefrompng($img->getPath()); imagejpeg($source, $imageFilePath.$imageFileName); break; } $startColumn = ABC2decimal($startColumn); $data[$startRow-1][$startColumn] = $imageFilePath . $imageFileName;}var_dump($data);public function ABC2decimal($abc){ $ten = 0; $len = strlen($abc); for($i=1;$i<=$len;$i++){ $char = substr($abc,0-$i,1);//反向获取单个字符 $int = ord($char); $ten += ($int-65)*pow(26,$i-1); } return $ten;} 这部分思路我参考于https://www.cnblogs.com/itbsl/p/11883458.html 如果本文对你有所帮助,麻烦你点个赞。

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