本文主要和大家分享layui上传组件使用方法，先贴上前端的代码，希望能帮助到大家。
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head>
<title>产品特性Form</title>
<link href="~/Content/Base/layui/css/layui.css" rel="stylesheet" type="text/css" />
<script src="~/Content/Base/layui/layui.js" type="text/javascript"></script>
<script src="../../../../Content/Views/js/jquery-1.8.3.min.js" type="text/javascript"></script>
<script src="../../../../Content/Views/js/framework-ui.js" type="text/javascript"></script>
<style>
@*table
{ height: 150px;
} .layui-form-label
{ width: 100px; }*@ </style></head><body>
<p style="width:100%;">
<p class="layui-upload">
<button type="button" class="layui-btn layui-btn-normal" id="testList">选择多文件</button>
<p class="layui-upload-list">
<table class="layui-table" id="tableFile">
<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>
</p>
<button type="button" class="layui-btn" id="testListAction">开始上传</button>
</p>
</p>
<script>
function getModelName() {
var url = location.search; //获取url中"?"符后的字串
var theRequest = new Object(); if (url.indexOf("?") != -1) { var str = url.substr(1);
strs = str.split("&"); for (var i = 0; i < strs.length; i++) {
theRequest[strs[i].split("=")[0]] = unescape(strs[i].split("=")[1]);
}
} return theRequest;
}; var parentUrlObj = getModelName(); var FileType = decodeURI(escape(parentUrlObj['filetype'])); var ModelId = decodeURI(escape(parentUrlObj['modelId'])); var NodeId = decodeURI(escape(parentUrlObj['nodeid'])); var ProductId = decodeURI(escape(parentUrlObj['productid']));
layui.use(['form', 'upload'], function () {
var form = layui.form,
upload = layui.upload; var demoListView = $('#demoList')
, uploadListIns = upload.render({
elem: '#testList'
, url: '/ModelList/uploadNodeAttributeFile?filetype=' + FileType + '&modelid=' + ModelId + '&nodeid=' + NodeId + '&productid=' + ProductId
, accept: 'file'
, multiple: true
, auto: false
, bindAction: '#testListAction'
, choose: function (obj) {
var files = this.files = obj.pushFile(); //将每次选择的文件追加到文件队列
//读取本地文件
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-mini demo-reload layui-hide">重传</button>'
, '<button class="layui-btn layui-btn-mini layui-btn-danger demo-delete">删除</button>'
, '</td>'
, '</tr>'].join('')); //单个重传
tr.find('.demo-reload').on('click', function () {
obj.upload(index, file);
}); //删除
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.Status == "success") { var tr = demoListView.find('tr#upload-' + index), tds = tr.children();
tds.eq(2).html('<span style="color: #5FB878;">上传成功</span>'); return null;
} else { if (res.Message == "文件已存在") { var tr = demoListView.find('tr#upload-' + index), tds = tr.children();
tds.eq(2).html('<span style="color: #5FB878;">上传失败，文件已存在</span>'); return null;
} 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
}
});
}); function heightTiao(nameid) {
var oIframe = window.top.document.getElementById(nameid); var oBody = document.getElementsByTagName("body")[0];
oIframe.style.height = oBody.offsetHeight + 40 + 'px';
}; </script></body></html>C#后端接收代码
HttpFileCollection hfc = System.Web.HttpContext.Current.Request.Files;string str1 = AppDomain.CurrentDomain.SetupInformation.ApplicationBase;string imgPath = "";string fileName = "";fileName = hfc[0].FileName;imgPath = Server.MapPath("~/bin/" + fileName);imgPath = Server.MapPath("~/bin/" + modelId + "/" + productid + "/" + nodeid + "/" + filetype + "/" + fileName);hfc[0].SaveAs(imgPath);return Content(new AjaxResult { Status = ResultType.success, Message = "执行成功" }.ToJson());具体使用过程中需要注意的是
auto: false
bindAction: ‘#testListAction’
这两个参数主要是设定为当你选择文件时不上传文件，而指定某个按钮来执行上传的动作
假设需要选择文件时则执行上传动作，只需要把auto设为true，并且去掉bindAction这个参数
其它参数可参照layui官网文档
上传文件需要判断的很多，只是简单记录个例子方便自己以后的使用。
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