小罗同学Fastadmin自带导出功能，数据超过400条后，导出功能容易失效。
在此记录，基于后台的导出方法~
后台需要导出的控制器中添加导出方法
public function export()
{
cookie('assets_export_time',time());
if ($this->request->isPost()) {
set_time_limit(0);
ini_set('memory_limit','2048M');
$search = $this->request->post('search');
$ids = $this->request->post('ids');
$filter = $this->request->post('filter');
$op = $this->request->post('op');
$columns = $this->request->post('columns');
//优先获取一条数据
$info = $this->model->find();
if(!$info) return $this->error('没有需要导出的数据');
//获取表字段
$columns = explode(',',$columns);
$fields = implode(',',array_intersect($columns,array_keys($info->getData())));
$excel = new Spreadsheet();
$excel->getProperties()
->setCreator("文档编辑人")
->setLastModifiedBy("上次修改人")
->setTitle("文档标题")
->setSubject("Subject");
$excel->getDefaultStyle()->getFont()->setName('Microsoft Yahei');
$excel->getDefaultStyle()->getFont()->setSize(12);
$excel->getDefaultStyle()->applyFromArray(
array(
'fill' => array(
'type' => Fill::FILL_SOLID,
'color' => array('rgb' => '000000')
),
'font' => array(
'color' => array('rgb' => "000000"),
),
'alignment' => array(
'vertical' => Alignment::VERTICAL_CENTER,
'horizontal' => Alignment::HORIZONTAL_CENTER,
'indent' => 1
),
'borders' => array(
'allborders' => array('style' => Border::BORDER_THIN),
)
));
$worksheet = $excel->setActiveSheetIndex(0);
$worksheet->setTitle('导出名称');
$whereIds = $ids == 'all' ? '1=1' : ['id' => ['in', explode(',', $ids)]];
$this->request->get(['search' => $search, 'ids' => $ids, 'filter' => $filter, 'op' => $op]);
list($where, $sort, $order, $offset, $limit) = $this->buildparams();
$line = 1;
$list = [];
$this->model
->field($fields)
->where($where)
->where($whereIds)
->chunk(100, function ($items) use (&$list, &$line, &$worksheet,&$columns) {
$styleArray = array(
'font' => array(
'color' => array('rgb' => '000000'),
'size' => 12,
'name' => 'Verdana'
));
$list = $items = collection($items)->toArray();
foreach ($items as $key => $v) {
foreach ($v as $k => $ele) {
$tmparray = explode("_text",$k);
if(count($tmparray)>1){
if(array_key_exists($tmparray[0],$items[$key])){
$items[$key][$tmparray[0]] = $ele;
}else if(array_key_exists($tmparray[0].'_id',$items[$key])){
$items[$key][$tmparray[0].'_id'] = $ele;
}else{
if(!in_array($k,$columns)){
unset($items[$key][$k]);
}
continue;
}
unset($items[$key][$k]);
}
if(!in_array($k,$columns)){
unset($items[$key][$k]);
}
}
}
if($line === 1){
$first = array_keys($items[0]);
$col = 1;
foreach ($first as $index => $item) {
$worksheet->setCellValueByColumnAndRow($col, 1,__($item));
$col++;
}
}
foreach ($items as $index => $item) {
$line++;
$col = 1;
foreach ($item as $field => $value) {
$worksheet->setCellValueByColumnAndRow($col, $line, $value);
$worksheet->getStyleByColumnAndRow($col, $line)->getNumberFormat()->setFormatCode(NumberFormat::FORMAT_TEXT);
$worksheet->getCellByColumnAndRow($col, $line)->getStyle()->applyFromArray($styleArray);
$col++;
}
}
});
$excel->createSheet();
// Redirect output to a client’s web browser (Excel2007)
$title = '导出名称';
header('Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet');
header('Content-Disposition: attachment;filename="' . $title . '.xlsx"');
header('Cache-Control: max-age=0');
// If you're serving to IE 9, then the following may be needed
header('Cache-Control: max-age=1');
// If you're serving to IE over SSL, then the following may be needed
header('Expires: Mon, 26 Jul 1997 05:00:00 GMT'); // Date in the past
header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT'); // always modified
header('Cache-Control: cache, must-revalidate'); // HTTP/1.1
header('Pragma: public'); // HTTP/1.0
$objWriter = IOFactory::createWriter($excel, 'Xlsx');
$objWriter->save('php://output');
return;
}
}
前台要导出的列表JS中的index方法中，加入JS代码
/** 自定义服务端导出 **/
var submitForm = function (ids, layero,index) {
var options = table.bootstrapTable('getOptions');
console.log(options);
var columns = [];
$.each(options.columns[0], function (i, j) {
if (j.field && !j.checkbox && j.visible && j.field != 'operate') {
columns.push(j.field);
}
});
var search = options.queryParams({});
$("input[name=search]", layero).val(options.searchText);
$("input[name=ids]", layero).val(ids);
$("input[name=filter]", layero).val(search.filter);
$("input[name=op]", layero).val(search.op);
$("input[name=columns]", layero).val(columns.join(','));
$("form", layero).submit();
$('.layui-layer-content > div',layero).html("正在导出，请稍后~");
var old_export_time = $.cookie('assets_export_time');
var load_index = Layer.load(0);
var timeIndex = setInterval(function (){
var export_time = $.cookie('assets_export_time');
if(old_export_time != export_time){
clearInterval(timeIndex);
Layer.close(index);
Layer.close(load_index);
}
},1000);
};
var submitShow = function (){
var ids = Table.api.selectedids(table);
var page = table.bootstrapTable('getData');
var all = table.bootstrapTable('getOptions').totalRows;
console.log(ids, page, all);
Layer.confirm("<div>请选择导出的选项</div><form action='" + Fast.api.fixurl("assets/export") + "' method='post' ><input type='hidden' name='ids' value='' /><input type='hidden' name='filter' ><input type='hidden' name='op'><input type='hidden' name='search'><input type='hidden' name='columns'></form>", {
title: '导出数据',
btn: ["选中项(" + ids.length + "条)", "本页(" + page.length + "条)", "全部(" + all + "条)"],
success: function (layero, index) {
$(".layui-layer-btn a", layero).addClass("layui-layer-btn0");
}
, yes: function (index, layero) {
submitForm(ids.join(","), layero,index);
return false;
}
,
btn2: function (index, layero) {
var ids = [];
$.each(page, function (i, j) {
ids.push(j.id);
});
submitForm(ids.join(","), layero,index);
return false;
}
,
btn3: function (index, layero) {
submitForm("all", layero,index);
return false;
}
})
}
//重新绑定导出点击事件，绑定自定义导出方法
$('div.export .dropdown-menu li').unbind().click(function (event){
event.stopPropagation();
submitShow();
return false;
});
由于JS方法中用到了jqurey的cookie插件，因此JS的模块引入中添加cookie模块，如下：
define(['jquery', 'bootstrap', 'backend', 'table', 'form','cookie'], function ($, undefined, Backend, Table, Form,undefined) {
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