java使用fileupload实现有进度条的文件上传功能

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1、先看看效果：ＪＳＰ页面：ｕｐｌｏａｄ．ｊｓｐ<%@pagelanguage="java"import="java.util.*"pageEncoding="UTF-8"%><%Stringpath=request.getContextPath();StringbasePath=request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%>

2、TDHTML4.01Transitional//EN">">

3、nt="struts2ajaxuploadprogress">varover=false;varinter;functionupload(){over=false

4、;$("#state").html("")$("#progress").css("width","0")$("input[type=submit]").attr("disabled",true);$("#progress").css("width","0%");$("#state").html("正在上传...总大小：0MB，已上传：0MB，0%，已用时：0秒，剩余时间：0秒，速度：0KB/S");inter=setInterval(req,1000);}functionreq(){//如果上传已经完成if(

5、over){clearInterval(inter);return;}varurl="upload/AjaxServlet";$.get(url,function(date){varstate=date.split("-");$("#state").html("正在上传...总大小："+state[4]+"MB，已上传："+state[3]+"MB，"+state[2]+"%，已用时："+state[0]+"秒，剩余时间："+state[5]+"秒，速度："+state[1]+"KB/S");$("#prog

6、ress").animate({width:state[2]+"%"},500);if(state[3]==state[4]){over=true;$("input[type=submit]").attr("disabled",false);$("#state").html("上传已完成，总大小："+state[4]+"MB，已上传："+state[3]+"MB，"+state[2]+"%，已用时："+state[0]+"秒，剩余时间："+state[5]+"秒，速度："+state[1]+"KB/S");}

7、});}