jsf实现同时上传不定数量的文件

最新推荐文章于 2025-05-08 16:53:18 发布

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最新推荐文章于 2025-05-08 16:53:18 发布 · 2.3k 阅读

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#jsf #import #null #class #input #border

该博客介绍了如何使用JSF框架实现同时上传不定数量的文件。通过在<t:dataTable>组件内嵌入<t:inputFileUpload>，动态创建列表来处理上传文件。博主提供了jsp页面、BackingBean、VO对象、文件保存到硬盘的方法以及faces-config.xml的配置示例，展示了完整的文件上传流程，并附带了运行截图。

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基本思路：<t:dataTable>内部放置<t:inputFileUpload>,根据设定的上传文件数，构造dataTable的List。
说明：以下代码包含了文件上传以外的相关代码，不做整理了。

实现目标：

< html >
< head >
< title > uploadfile </ title >
< meta http-equiv ="Content-Type" content ="text/html; charset=gb2312" >
< style type ="text/css" >

</ style >
< script language ="JavaScript" >

</ script >
</ head >

< body bgcolor ="#FFFFFF" text ="#000000" background ="bj.gif" >
< form name ="form1" method ="post" action ="upfile.asp" enctype ="multipart/form-data" >
   < input type ="hidden" name ="act" value ="upload" >
   < table width ="76%" border ="1" cellspacing ="0" cellpadding ="5" align ="center" bordercolordark ="#CCCCCC" bordercolorlight ="#000000" height ="182" >
     < tr bgcolor ="#CCCCCC" >
       < td height ="22" align ="left" valign ="middle" bgcolor ="#CCCCCC" >
文件上传 </ td >
     </ tr >
     < tr align ="left" valign ="middle" bgcolor ="#eeeeee" >
       < td bgcolor ="#eeeeee" height ="1" >
         < script language ="javascript" >
       function setid()
      {
      str = ' <br> ' ;
       if ( ! window.form1.upcount.value)
       window.form1.upcount.value = 1 ;
        for (i = 1 ;i <= window.form1.upcount.value;i ++ )
         str += ' 文件 ' + i + ' :<input type="file" name="file ' + i + ' " style="width:400" class="tx1"><br><br> ' ;
      window.upid.innerHTML = str;
      }
       </ script >
         < li > 需要上传的个数
           < input type ="text" name ="upcount" class ="tx" value ="1" >
           < input type ="button" name ="Button" class ="bt" onclick ="setid();" value ="· 设定 ·" >
         </ li >
       </ td >
     </ tr >
     < tr align ="center" valign ="middle" >
       < td align ="left" id ="upid" height ="32" > 文件1:
         < input type ="file" name ="file1" style ="width:403; height:20" class ="tx1" value ="" ></ td >
     </ tr >
     < tr align ="center" valign ="middle" bgcolor ="#eeeeee" >
       < td bgcolor ="#eeeeee" height ="28" >
         < input type ="submit" name ="Submit" value ="· 提交 ·" class ="bt" >
         < input type ="reset" name ="Submit2" value ="· 重置 ·" class ="bt" ></ td >
     </ tr >
   </ table >
</ form >
</ body >
</ html >

jsp：