网页上添加一个input file HTML控件:
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<
input
id="File1" type="file" />
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默认是这样的,所有文件类型都会显示出来,如果想限制它只显示我们设定的文件类型呢,比如“word“,”excel“,”pdf“文件
解决办法是可以给它添加一个accept属性,比如:
<input type="file" id="userImage" name="userImage" accept="image/x-png,image/gif,image/jpeg,image/bmp"/>
文件标签美化: http://blog.youkuaiyun.com/u010003835/article/details/51013916
完整的文件上传按钮(含文件标签美化,自定义上传按钮的文字 + 文件路径input 和上传按钮 的对齐(浮动)):
<input type="file" id="userImage" name="userImage" style="display:none;" οnchange="upfileName.value=this.value" accept="image/x-png,image/gif,image/jpeg,image/bmp"/>
<span style="height:50px;line-height:50px; /*清理浮动*/overflow:auto; zoom:1; ">
<input type="text" id="upfileName" readonly="readonly" style="float:left; width:220px;"/>
<input type="button" οnclick="userImage.click()" style="float:left; margin-left:5px; height:23px; width:57px; background: url(<%=request.getContextPath() %>/resources/images/sc.png) no-repeat;border:none;"/>
</span>
这样选择的时候默认会显示为这样:
文件选择框内只显示出你自定义文件类型的文件,也还比较方便。
But,这只是最简单的掩人耳目的做法,还是能选择其它文件类型:
所以,如果要做到真正意义上限制类型做法(其实这种算不上限制,只是把你要的文件类型默认显示出来而已,并不是说不能选择其它的),还是要通过js或者后台来控制。
附支持的文件类型:
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*.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
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