0 ajaxFileUpload简介
ajaxFileUpload插件是一个非常简单的基于Jquery的异步上传文件的插件,使用过程中发现很多与这个同名的,基于原始版本基础之上修改过的插件,文件版本比较多,我把我自己使用的ajaxFileUpload文件上传到博客园上了,想要使用的朋友可以下载:(jb51.net).rar。
整个插件源码不到200行,实现非常简单,大致原理就是通过js动态创建隐藏的表单,然后进行提交操作,达到附件上传的目的,主要实现在源码里都有注释,不难理解,我们也可以基于此简单版本实现更复杂的操作。
1 ajaxFileUpload使用说明
ajaxFileUpload的使用也很简单,调用ajaxFileUpload方法即可,各配置项详细说明如下:
$.ajaxFileUpload({ type: "post", //请求类型:post或get,当要使用data提交自定义参数时一定要设置为post url: "/Shared/Upload", //文件上传的服务器端请求地址 secureuri: false, //是否启用安全提交,一般默认为false就行,不用特殊处理 fileElementId: "filePicture", //文件上传控件的id <input type="file" accept=".jpg,.jpeg,.png,.bmp" onchange="filePictureChange()" /> dataType: "json", //返回值类型,一般设置为json,还支持html\xml\script类型 data: { "id": "1", "name": "test" }, //用于post请求提交自定义参数 success: function (data, status) { //服务器成功响应处理函数 }, error: function (data, status, e) { //服务器响应失败处理函数 } });
首先在页面添加对JQuery及ajaxFileUpload的引用,这里的JQuery用的2.1.4版本,经测试用各个版本基本没什么影响。
<script src=""></script>
<script src=""></script>
页面添加类型为file的input标签
复制代码 代码如下:
<input type="file" accept=".jpg,.jpeg,.png,.bmp" onchange="filePictureChange()" />
通过accept可以限定打开文件选择对话框后,默认能选择的文件类型。文件类型的定义主要有以下这些
*.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
我这里没有单独放上传按钮,添加了onchange事件,在选择文件后立即上传文件,onchange时间定义如下。