1. List item

导入：前端使用的layui框架

   <div class="layui-upload">
                    <button type="button" class="layui-btn" id="upload_btn">
                        <i class="layui-icon">&#xe67c;</i>上传文件
                    </button>
             </div>
             js:
       

 layui.use('upload', function () {
        var upload = layui.upload;
        let _token = "{{csrf_token()}}";
        let id=document.getElementById('company_id').value;
        let upload_url = '{{ route('admin.companies.collects') }}?id='+id+'&_token=' + _token;
        //执行实例
        var uploadInst = upload.render({
            elem: '#upload_btn' //绑定元素
            , url: upload_url //上传接口
            , accept: 'file'
            , field: 'file'
            , exts:'xls|xlsx'
            , done: function (res) {
                //上传完毕回调
                if (res.code==2) {
                    layer.alert('导入失败');
                } else if(res.code==0) {
                    layer.msg('导入成功，有失败数据');
                    window.location.href = "{{ route('admin.upload.export') }}?url=admin/companies";
                } else if(res.code==1){
                    layer.alert('导入成功');
                }
            }
            , error: function () {
                //请求异常回调
            }
        });
    });
##    控制器：

public function collects(Request $request)
{

$company_id = $request->get('id');
if ($request->hasFile('file')) {
    
    $dataNewName = date('Y-m-d-h-i-s') . '.' . $request->file('file')->getClientOriginalExtension();
    $dataPath = Storage::disk('public')->putFileAs('file', $request->file('file'), $dataNewName);
    Excel::import(new EmployeeImport($company_id), $dataPath);
    $error = session('error');
    if (count($error) > 1) {
        $result['code'] = 0;
        $result['msg'] = '上传成功,有失败文件';

    } else {
        $result['code'] = 1;
        $result['msg'] = '上传成功';
    }
} else {
    $result['code'] = 2;
    $result['msg'] = '文件为空';
}
return $result;

}

##EmployeeImport

<?php

    class EmployeeImport implements ToCollection
    {
    
        private $company_id;
    
        public function __construct(int $company_id)
        {
            $this->company_id = $company_id;
            //  \Log::info(__FUNCTION__ . ',' . __LINE__ . ',company:' . $this->getCompanyId() . ' - ' . $this->company_id);
        }
    
        public function collection(Collection $row)
        {
            session()->forget('error');
            $error = [];
            $title = $row->shift();
            $title->push('错误行数');
            array_unshift($error, $title->toArray());
            $count = 0;
            foreach ($row as $result) {
                $count++;
                $createR = [];
                $sexMap = ['男' => 1, '女' => 0];
                $tmpFields = ['job_no', 'name', 'sex', 'birthday', 'politics_status', 'marital_status', 'address', 'nation', 'bank', 'bank_account', 'id_card_no', 'mobile', 'phone', 'department', 'company_id'];
                $result = $result->toArray();
                array_walk($result, function ($value, $key) use (&$createR, $sexMap, $tmpFields) {
                    $field = isset($tmpFields[$key]) ? $tmpFields[$key] : null;
                    if (!empty($value) && $field) {
                        if ($key == 2) {
                            $value = isset($sexMap[$value]) ? $sexMap[$value] : 0;
                        }
                        if ($key == 3) {
                            if (is_numeric($value)) {
                                $n = intval(($value - 25569) * 3600 * 24);
                                $value = gmdate('Y-m-d H:i:s', $n);
                            } else {
                                $value = date('Y-m-d', strtotime($value));
                            }
                        }
                        if ($key == 14) {
                            $value = $this->company_id;
                        }
                        $createR[$field] = $value;
                    }
                });
                if (count($createR) != 15) {
                    array_push($result, $count);
                    array_push($error, $result);
                    continue;
                }
    
                try {
                    $model = Employee::updateOrCreate($createR);
                    \Log::info(__FUNCTION__ . __LINE__ . ',model:' . json_encode($model));
                } catch (\Exception $e) {
                    array_push($result, $count);
                    array_push($error, $result);
                    continue;
                }
            }
            session(['error' => $error]);
        }
    
    
        /**
         * @return mixed
         */
        public function getCompanyId()
        {
            return $this->company_id;
        }
    
        /**
         * @param mixed $company_id
         */
        public function setCompanyId($company_id)
        {
            $this->company_id = $company_id;
        }
    
    
    }

即可实现laravel excel的导入并插入数据表
##导出
Export

<?php

class SalaryExportImport implements FromCollection,ShouldAutoSize
{
    protected $salary_id;

    public function __construct(int $salary_id)
    {
        $this->salary_id = $salary_id;
    }

    public function collection()
  {
      $id=session('salary_id');
      $data=[];
      $title = array('收款账号', '收款户名', '省份', '城市', '收款银行', '金额', '用途');
      array_unshift($data, $title);
          $salaries = Salary::where('salary_id',$this->salary_id)->get(['bank_account', 'bankAccount_name', 'province', 'city', 'opening_bank', 'salary', 'remarks'])->toArray();
          foreach ($salaries as $salaries) {
          array_push($data, $salaries);
      }
      return new Collection($data);
  }
}

控制器

public function export(Request $request)
    {
        $salary_id = $request->get('id');
        return Excel::download(new SalaryExportImport($salary_id), '工资表.xlsx');
    }