layui多文件选择之后自动上传

html:

<div class="layui-upload">
<button type="button" class="layui-btn layui-btn-normal" id="testList">选择图片(最多2张)</button>
<div class="layui-upload-list">
<table class="layui-table" id="table">
<thead>
<tr>
<th>文件名</th>
<th>大小</th>
<th>状态</th>
<th>操作</th>
</tr>
</thead>
<tbody id="demoList"></tbody>
</table>
</div>
<input type="hidden" id="runimgfilename" name="runimgfilename" value="">
</div>

js:

//多文件自动上传
var demoListView = $('#demoList')
, uploadListIns = upload.render({
elem: '#testList'
, url: 'UploadKeepImg'
, accept: 'jpg|png'
, multiple: true
, number: 2
, auto: true
, before: function (obj) {
var files = this.files = obj.pushFile(); //将每次选择的文件追加到文件队列
obj.preview(function (index, file, result) {
var tr = $(['<tr id="upload-' + index + '">'
, '<td>' + file.name + '</td>'
, '<td>' + (file.size / 1014).toFixed(1) + 'kb</td>'
, '<td>等待上传</td>'
, '<td>'
, '<button class="layui-btn layui-btn-xs demo-reload layui-hide">重传</button>'
, '<button class="layui-btn layui-btn-xs layui-btn-danger demo-delete">删除</button>'
, '</td>'
, '</tr>'].join(''));
tr.find('.demo-reload').on('click', function () {
obj.upload(index, file);
});
tr.find('.demo-delete').on('click', function () {
delete files[index]; //删除对应的文件
tr.remove();
uploadListIns.config.elem.next()[0].value = ''; //清空 input file 值，以免删除后出现同名文件不可选
});
demoListView.append(tr);
});
}
, done: function (res, index, upload) {
if (res.code == 0) {
var tr = demoListView.find('tr#upload-' + index)
, tds = tr.children();
var a = res.data;
tds.eq(2).html('<span id="success" style="color: #5FB878;">上传成功</span>');
tds.eq(3).html('<button class="layui-btn layui-btn-xs layui-btn-danger demo-delete" mydate="' + a + '">删除</button>'); //清空操作
tr.find('.demo-delete').on('click', function () {
tr.remove();
uploadListIns.config.elem.next()[0].value = ''; //清空 input file 值，以免删除后出现同名文件不可选
});
} else {
this.error(index, upload);
}
}
, error: function (index, upload) {
var tr = demoListView.find('tr#upload-' + index)
, tds = tr.children();
tds.eq(2).html('<span style="color: #FF5722;">上传失败</span>');
tds.eq(3).find('.demo-reload').removeClass('layui-hide'); //显示重传
}
});

参考文章：

https://fly.layui.com/jie/26134/

https://www.cnblogs.com/zhaopanpan/articles/9927548.html