<logic:notEmpty name="adminInfoForm" property="notVerifiedProductionList">
    <logic:iterate id="production" name="adminInfoForm" property="notVerifiedProductionList" indexId="index">
        <bean:write name="production" property="title"/>
        <bean:write name="production" property="authors"/>
        <bean:write name="production" property="time" format="yyyy-MM-dd"/>
        <bean:write name="production" property="place"/>
        <html:form action="/adminInfo" method="post" enctype="multipart/form-data" onsubmit="javascript:return check();">
            <html:hidden property="method" value="uploadFile"/>
            <input type="hidden" name="productionId" value="<bean:write name='production' property='id'/>"/>
            上传文件:<html:file property="myFile"></html:file>
            <input type="submit" value="上传"/>
        </html:form>
    </logic:iterate>
</logic:notEmpty>

function   check(){      
        var len = document.all.myFile.value.length;      
        var str = document.all.myFile.value;      
        var xx = str.substr(str.lastIndexOf("."),len);      
        if(xx == ".pdf"){    
                return true;
         }
        else{
                alert("必须上传PDF格式文件");   
                return false ;
        }
}