layui上传插件之txt上传(格式过滤)

前言

好久都没有用layui了，很多东西又要开始学了，今天在使用layui上传文件的时候需要上传txt文件，但是官方的文档中并没有选择文件是只保留txt格式。

layui txt文件上传代码

//多文件列表示例
var demoListView = $('#demoList'),
	uploadListIns = upload.render({
	elem: '#testList',
	url: '/upload/upload.php',
	accept: 'file',
	multiple: true,
	auto: false,
	acceptMime: 'text/plain',   // 此处是重点
	exts: 'txt',
	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
		console.log(files)
		//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 / 1024).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(''));

			//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.files.file) { //上传成功
			var tr = demoListView.find('tr#upload-' + index),
				tds = tr.children();
			tds.eq(2).html('<span style="color: #5FB878;">上传成功</span>');
			tds.eq(3).html(''); //清空操作
			return delete this.files[index]; //删除文件队列已经上传成功的文件
		}
		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
	}
});

acceptMime拓展值

*.3gpp	audio/3gpp, video/3gpp	3GPP Audio/Video
*.ac3	audio/ac3	AC3 Audio
*.asf	allpication/vnd.ms-asf	Advanced Streaming Format
*.au	audio/basic	AU Audio
*.css	text/css	Cascading Style Sheets
*.csv	text/csv	Comma Separated Values
*.doc	application/msword	MS Word Document
*.dot	application/msword	MS Word Template
*.dtd	application/xml-dtd	Document Type Definition
*.dwg	image/vnd.dwg	AutoCAD Drawing Database
*.dxf	image/vnd.dxf	AutoCAD Drawing Interchange Format
*.gif	image/gif	Graphic Interchange Format
*.htm	text/html	HyperText Markup Language
*.html	text/html	HyperText Markup Language
*.jp2	image/jp2	JPEG-2000
*.jpe	image/jpeg	JPEG
*.jpeg	image/jpeg	JPEG
*.jpg	image/jpeg	JPEG
*.js	text/javascript, application/javascript	JavaScript
*.json	application/json	JavaScript Object Notation
*.mp2	audio/mpeg, video/mpeg	MPEG Audio/Video Stream, Layer II
*.mp3	audio/mpeg	MPEG Audio Stream, Layer III
*.mp4	audio/mp4, video/mp4	MPEG-4 Audio/Video
*.mpeg	video/mpeg	MPEG Video Stream, Layer II
*.mpg	video/mpeg	MPEG Video Stream, Layer II
*.mpp	application/vnd.ms-project	MS Project Project
*.ogg	application/ogg, audio/ogg	Ogg Vorbis
*.pdf	application/pdf	Portable Document Format
*.png	image/png	Portable Network Graphics
*.pot	application/vnd.ms-powerpoint	MS PowerPoint Template
*.pps	application/vnd.ms-powerpoint	MS PowerPoint Slideshow
*.ppt	application/vnd.ms-powerpoint	MS PowerPoint Presentation
*.rtf	application/rtf, text/rtf	Rich Text Format
*.svf	image/vnd.svf	Simple Vector Format
*.tif	image/tiff	Tagged Image Format File
*.tiff	image/tiff	Tagged Image Format File
*.txt	text/plain	Plain Text
*.wdb	application/vnd.ms-works	MS Works Database
*.wps	application/vnd.ms-works	Works Text Document
*.xhtml	application/xhtml+xml	Extensible HyperText Markup Language
*.xlc	application/vnd.ms-excel	MS Excel Chart
*.xlm	application/vnd.ms-excel	MS Excel Macro
*.xls	application/vnd.ms-excel	MS Excel Spreadsheet
*.xlt	application/vnd.ms-excel	MS Excel Template
*.xlw	application/vnd.ms-excel	MS Excel Workspace
*.xml	text/xml, application/xml	Extensible Markup Language
*.zip	aplication/zip	Compressed Archive

Layui上传原型

<input type="file" accept="image/gif,image/png" />

结果展示

原文地址：https://itzhai.cn/dianyingziyuan/1103.html

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