Layui和TP5导入Excel单表

1、layui导入，导出，下载样式

导出
模板下载
导入

2、js部分

//导入 用layui upload插件layui.use([ "element", "laypage", "layer", "upload"], function() {
    var element = layui.element;
    var laypage = layui.laypage;
    var layer = layui.layer;
    var upload = layui.upload;//主要是这个
    layui.upload.render({
        elem: "#importData",//导入id
        url: "{:url('uploadFile'}",
        size: '3072',
        accept: "file",
        exts: 'xls|xlsx|xlsm|xlt|xltx|xltm',
        done: function (result) {
            layer.msg(result.msg);
            widow.location.reload();
            }
        }
    });
    //refreshTable()
});

//导出
function exportData() {
    $.ajax({
        type: "post", url: "/xx/exportData", data: {}, success: function (result) {
            if (result.status == 0) {
                window.open(result.data)
            }
            if (result.message != null) {
                layer.msg(result.message)
            }
        }, error: function (XMLHttpRequest, textStatus, errorThrown) {
            layer.msg('{"status":"' + XMLHttpRequest.status + '","readyState":"' + XMLHttpRequest.readyState + '","textStatus":"' + textStatus + '","errorThrown":"' + errorThrown + '"}')
        }
    })
};

//模板下载
function downloadTemplate() {
    $.ajax({
        type: "post", url: "/xx/downloadTemplate", data: {}, success: function (result) {
            if (result.status == 0) {
                window.open(result.data)
            }
            if (result.message != null) {
                layer.msg(result.message)
            }
        }, error: function (XMLHttpRequest, textStatus, errorThrown) {
            layer.msg('{"status":"' + XMLHttpRequest.status + '","readyState":"' + XMLHttpRequest.readyState + '","textStatus":"' + textStatus + '","errorThrown":"' + errorThrown + '"}')
        }
    })
}

3、控制器部分
首先下载phpexcel
PHPExcel 扩展包下载地址： https://github.com/PHPOffice/PHPExcel
下载压缩包只需要解压后classes文件夹里的所有内容。
将其放在一个你自定义名字的文件夹里面，本人用的是PHPExcel，然后将文件夹放在extend里面，其余看代码

 //导入
    public function uploadFile()
    {
         // 引入核心文件
        require'../extend/PHPExcel/PHPExcel.php'; 
        header("content-type:text/html;charset=utf-8");
        //上传excel文件
        $file = request()->file('file');
        $files = $_FILES['file'];
      
      
        //将文件保存到public/uploads目录下面
        $info = $file->validate(['size'=>1048576,'ext'=>'xls,xlsx'])->move( './uploads');
       
        if($info){
            $exclePath = $info->getSaveName();  //获取文件名
            $file_name = './uploads/'. $exclePath;   //上传文件的地址
            
        	$objReader =\PHPExcel_IOFactory::createReader('Excel2007'); 
        	$obj_PHPExcel =$objReader->load($file_name, $encode = 'utf-8');  //加载文件内容,编码utf-8  
        	$excel_array=$obj_PHPExcel->getsheet(0)->toArray();   //转换为数组格式 
        	array_shift($excel_array);  //删除第一个数组(标题); 
                
        foreach ($excel_array as $k => $v){
            $arr['school'][$k] = $v[0];
            $arr['grade'][$k]['school'] = $v[0];
            $arr['grade'][$k]['grade'] = $v[1];
            $arr['class'][$k]['school'] = $v[0];
            $arr['class'][$k]['grade'] = $v[1];
            $arr['class'][$k]['class'] = $v[2];
        }
        // var_dump($arr);
        $arr['school']=array_unique($arr['school']);
        // $arr['grade']=$this->assoc_unique($arr['grade'],"grade");
        // $arr['class']=$this->assoc_unique($arr['class'],"class");
        $res2=1;
        // var_dump($arr);
        foreach ($arr['school'] as $k=>$v){
            $result=Db::name("school")->where("name",$v)->find();
            if(empty($result)){
                $arrary['pid']=0;
                $arrary['name']=$v;
                $arrary['create_time']=time();
                $res2=Db::name("school")->insert($arrary);
            
            }
        }
         foreach ($arr['grade'] as $k=>$v){
            $pid=Db::name("school")->where("name",$v['school'])->value('id');
            if(!empty($pid)){
            $result=Db::name("school")->where("name",$v['grade'])->where("pid",$pid)->find();
            if(empty($result)){
                $arrary['pid']=$pid;
                $arrary['name']=$v['grade'];
                $arrary['create_time']=time();
                $res2=Db::name("school")->insert($arrary);
                
            }
            }
        }
          foreach ($arr['class'] as $k=>$v){
            $pid1=Db::name("school")->where("name",$v['school'])->value('id');
            if(!empty($pid1)){
            $pid=Db::name("school")->where("name",$v['grade'])->where("pid",$pid1)->value('id');
            if(!empty($pid)){
            $result=Db::name("school")->where("name",$v['class'])->where("pid",$pid)->find();
            if(empty($result)){
                $arrary['pid']=$pid;
                $arrary['name']=$v['class'];
                $arrary['create_time']=time();
                $res2=Db::name("school")->insert($arrary);
                // var_dump(33);
            }
            } 
            }
          
        }
        if($res2){
            return $this->success("导入成功",'index/index');
        }else{
            return $this->error("导入失败",'index/index');
        }
    }
        
    }