如何用JAVA实现象OICQ中点击按钮就向上移动的效果？

<html>
<head>
<title>QQ菜单</title>
<meta http-equiv='Content-Type' content='text/html; charset=gb2312'>
<script language='JavaScript'>
var headHeight = 22;var bodyHeight = 202;var objcount = 4;var step = 10;var moving = false;
function showme(obj1, obj2)
{
if (moving)
return;
moving = true;
for(i=0;i<document.all.tags('td').length;i++)
if (document.all.tags('td')[i].className.indexOf('headtd') == 0)
document.all.tags('td')[i].className = 'headtd1';
obj2.className = 'headtd2';
moveme(obj1);
}
function moveme(obj)
{
idnumber = parseInt(obj.id.substr(4));
objtop = headHeight * (idnumber - 1);
objbuttom = bodyHeight + headHeight * (idnumber - 2);
currenttop = parseInt(obj.style.top);
if (currenttop >= objbuttom)
{
countid = 1;
for(i=0;i<document.all.tags('div').length;i++)
if (document.all.tags('div')[i].id == 'item'+countid+'body')
{
obj = document.all.tags('div')[i];
objtop = headHeight * (countid - 1);
if (countid == idnumber)
{
moveup(obj,objtop,false);
break;
}
else
moveup(obj,objtop,true);
countid++;
}
}
else if ((currenttop <= objtop) && (idnumber < objcount))
{
idnumber++;
countid = objcount;
for(i=document.all.tags('div').length-1;i>=0;i--)
if (document.all.tags('div')[i].id == 'item'+countid+'body')
{
obj = document.all.tags('div')[i];
objbuttom = bodyHeight + headHeight * (countid - 2);
if (countid == idnumber)
{
movedown(obj,objbuttom,false);
break;
}
else
movedown(obj,objbuttom,true);
countid--;
}
}
}
function moveup(obj,objtop,ismove)
{
currenttop = parseInt(obj.style.top);
if (currenttop > objtop)
{
obj.style.top = currenttop - step;
setTimeout('moveup('+obj.id+','+objtop+','+ismove+')',1)
return;
}
moving = ismove;
}
function movedown(obj,objbuttom,ismove)
{
currenttop = parseInt(obj.style.top);
if (currenttop < objbuttom)
{
obj.style.top = currenttop + step;
setTimeout('movedown('+obj.id+','+objbuttom+','+ismove+')',1)
return;
}
moving = ismove;
}
</script>
<style type='text/css'>
.headtd1 {  background: #00A4E1; border: 2px outset; border-color: #00BBFF #0077FF #0077FF #00BBFF; cursor: hand; font-size: 9pt}
.headtd2 {  background: #20C1FF; border: 2px outset; border-color: #60D3FF #0077FF #0077FF #60D3FF; cursor: hand; font-size: 9pt}
.bodytd  {  background: #99CCFF; border: 2px outset; border-color: #B0D8FF #0077FF #0077FF #B0D8FF; font-size: 9pt}
td{font-size:9pt}
body{font-size:9pt}
a {  font-size: 9pt; color: #0066CC; text-decoration: none}
a:hover {  font-size: 9pt; color: #990000}
</style>
</head>
<body bgcolor='#FFFFFF' text='#000000'>
<div id='mainboard' style='position:absolute; left:2px; top:2px; width:120px; height:268px; z-index:1; overflow: hidden; background: #99CCFF;'> <div id='item1body' style='position:absolute; left:0; top:0; width:120px; height:202px; z-index:2; overflow: hidden'><table width='100%' border='0' height='100%' cellpadding='2' cellspacing='0'><tr><td id='item1head' height='20' class='headtd2' onclick='showme(item1body,this)' align='center'>菜单1</td></tr><tr>
        <td class='bodytd' align='center'>
          <table width="99%" border="0" cellspacing="1" cellpadding="1" height="100%">
            <tr> 
              <td bgcolor="#D9ECFF" align="center"><a href="http://0755i.com" target="_blank">子菜单子菜单</a></td>
            </tr>
            <tr> 
              <td bgcolor="#D9ECFF" align="center"><a href="http://0755i.com" target="_blank">子菜单子菜单</a></td>
            </tr>
            <tr> 
              <td bgcolor="#D9ECFF" align="center"><a href="http://0755i.com" target="_blank">子菜单子菜单</a></td>
            </tr>
            <tr> 
              <td bgcolor="#D9ECFF" align="center"><a href="http://0755i.com" target="_blank">子菜单子菜单</a></td>
            </tr>
            <tr> 
              <td bgcolor="#D9ECFF" align="center"><a href="http://0755i.com" target="_blank">子菜单子菜单</a></td>
            </tr>
            <tr> 
              <td bgcolor="#D9ECFF" align="center"><a href="http://0755i.com" target="_blank">子菜单子菜单</a></td>
            </tr>
            <tr> 
              <td bgcolor="#D9ECFF" align="center"><a href="/">子菜单子菜单</a></td>
            </tr>
          </table>
        </td></tr></table></div><div id='item2body' style='position:absolute; left:0; top:202; width:120px; height:202px; z-index:3; overflow: hidden'><table width='100%' border='0' height='100%' cellpadding='2' cellspacing='0'><tr><td id='item2head' height='20' class='headtd1' onclick='showme(item2body,this)' align='center'>菜单2</td></tr><tr><td class='bodytd' align='center'>
          <table width="99%" border="0" cellspacing="1" cellpadding="1" height="100%">
            <tr> 
              <td bgcolor="#D9ECFF" align="center"><a href="http://0755i.com" target="_blank">子菜单子菜单</a></td>
            </tr>
            <tr> 
              <td bgcolor="#D9ECFF" align="center"><a href="http://0755i.com" target="_blank">子菜单子菜单</a></td>
            </tr>
            <tr> 
              <td bgcolor="#D9ECFF" align="center"><a href="http://0755i.com" target="_blank">子菜单子菜单</a></td>
            </tr>
            <tr> 
              <td bgcolor="#D9ECFF" align="center"><a href="http://0755i.com" target="_blank">子菜单子菜单</a></td>
            </tr>
            <tr> 
              <td bgcolor="#D9ECFF" align="center"><a href="http://0755i.com" target="_blank">子菜单子菜单</a></td>
            </tr>
            <tr> 
              <td bgcolor="#D9ECFF" align="center"><a href="http://0755i.com" target="_blank">子菜单子菜单</a></td>
            </tr>
            <tr> 
              <td bgcolor="#D9ECFF" align="center"><a href="/">子菜单子菜单</a></td>
            </tr>
          </table>
        </td></tr></table></div><div id='item3body' style='position:absolute; left:0; top:224; width:120px; height:202px; z-index:4; overflow: hidden'><table width='100%' border='0' height='100%' cellpadding='2' cellspacing='0'><tr><td id='item3head' height='20' class='headtd1' onclick='showme(item3body,this)' align='center'>菜单3</td></tr><tr>
        <td class='bodytd' align='center'>自己在这里随便<br>
          添加点什么都可以</td>
      </tr></table></div><div id='item4body' style='position:absolute; left:0; top:246; width:120px; height:202px; z-index:5; overflow: hidden'><table width='100%' border='0' height='100%' cellpadding='2' cellspacing='0'><tr><td id='item4head' height='20' class='headtd1' onclick='showme(item4body,this)' align='center'>菜单4</td></tr><tr>
        <td class='bodytd' align='center'>自己在这里随便<br>
          添加点什么都可以</td>
      </tr></table></div></div></body></html>

解决方案 »

  1.   

    <html>
    <head>
    <title>QQ菜单</title>
    <meta http-equiv='Content-Type' content='text/html; charset=gb2312'>
    <script language='JavaScript'>
    var headHeight = 22;var bodyHeight = 202;var objcount = 4;var step = 10;var moving = false;
    function showme(obj1, obj2)
    {
    if (moving)
    return;
    moving = true;
    for(i=0;i<document.all.tags('td').length;i++)
    if (document.all.tags('td')[i].className.indexOf('headtd') == 0)
    document.all.tags('td')[i].className = 'headtd1';
    obj2.className = 'headtd2';
    moveme(obj1);
    }
    function moveme(obj)
    {
    idnumber = parseInt(obj.id.substr(4));
    objtop = headHeight * (idnumber - 1);
    objbuttom = bodyHeight + headHeight * (idnumber - 2);
    currenttop = parseInt(obj.style.top);
    if (currenttop >= objbuttom)
    {
    countid = 1;
    for(i=0;i<document.all.tags('div').length;i++)
    if (document.all.tags('div')[i].id == 'item'+countid+'body')
    {
    obj = document.all.tags('div')[i];
    objtop = headHeight * (countid - 1);
    if (countid == idnumber)
    {
    moveup(obj,objtop,false);
    break;
    }
    else
    moveup(obj,objtop,true);
    countid++;
    }
    }
    else if ((currenttop <= objtop) && (idnumber < objcount))
    {
    idnumber++;
    countid = objcount;
    for(i=document.all.tags('div').length-1;i>=0;i--)
    if (document.all.tags('div')[i].id == 'item'+countid+'body')
    {
    obj = document.all.tags('div')[i];
    objbuttom = bodyHeight + headHeight * (countid - 2);
    if (countid == idnumber)
    {
    movedown(obj,objbuttom,false);
    break;
    }
    else
    movedown(obj,objbuttom,true);
    countid--;
    }
    }
    }
    function moveup(obj,objtop,ismove)
    {
    currenttop = parseInt(obj.style.top);
    if (currenttop > objtop)
    {
    obj.style.top = currenttop - step;
    setTimeout('moveup('+obj.id+','+objtop+','+ismove+')',1)
    return;
    }
    moving = ismove;
    }
    function movedown(obj,objbuttom,ismove)
    {
    currenttop = parseInt(obj.style.top);
    if (currenttop < objbuttom)
    {
    obj.style.top = currenttop + step;
    setTimeout('movedown('+obj.id+','+objbuttom+','+ismove+')',1)
    return;
    }
    moving = ismove;
    }
    </script>
    <style type='text/css'>
    .headtd1 {  background: #00A4E1; border: 2px outset; border-color: #00BBFF #0077FF #0077FF #00BBFF; cursor: hand; font-size: 9pt}
    .headtd2 {  background: #20C1FF; border: 2px outset; border-color: #60D3FF #0077FF #0077FF #60D3FF; cursor: hand; font-size: 9pt}
    .bodytd  {  background: #99CCFF; border: 2px outset; border-color: #B0D8FF #0077FF #0077FF #B0D8FF; font-size: 9pt}
    td{font-size:9pt}
    body{font-size:9pt}
    a {  font-size: 9pt; color: #0066CC; text-decoration: none}
    a:hover {  font-size: 9pt; color: #990000}
    </style>
    </head>
    <body bgcolor='#FFFFFF' text='#000000'>
    <div id='mainboard' style='position:absolute; left:2px; top:2px; width:120px; height:268px; z-index:1; overflow: hidden; background: #99CCFF;'> <div id='item1body' style='position:absolute; left:0; top:0; width:120px; height:202px; z-index:2; overflow: hidden'><table width='100%' border='0' height='100%' cellpadding='2' cellspacing='0'><tr><td id='item1head' height='20' class='headtd2' onclick='showme(item1body,this)' align='center'>菜单1</td></tr><tr>
            <td class='bodytd' align='center'>
              <table width="99%" border="0" cellspacing="1" cellpadding="1" height="100%">
                <tr> 
                  <td bgcolor="#D9ECFF" align="center"><a href="http://0755i.com" target="_blank">子菜单子菜单</a></td>
                </tr>
                <tr> 
                  <td bgcolor="#D9ECFF" align="center"><a href="http://0755i.com" target="_blank">子菜单子菜单</a></td>
                </tr>
                <tr> 
                  <td bgcolor="#D9ECFF" align="center"><a href="http://0755i.com" target="_blank">子菜单子菜单</a></td>
                </tr>
                <tr> 
                  <td bgcolor="#D9ECFF" align="center"><a href="http://0755i.com" target="_blank">子菜单子菜单</a></td>
                </tr>
                <tr> 
                  <td bgcolor="#D9ECFF" align="center"><a href="http://0755i.com" target="_blank">子菜单子菜单</a></td>
                </tr>
                <tr> 
                  <td bgcolor="#D9ECFF" align="center"><a href="http://0755i.com" target="_blank">子菜单子菜单</a></td>
                </tr>
                <tr> 
                  <td bgcolor="#D9ECFF" align="center"><a href="/">子菜单子菜单</a></td>
                </tr>
              </table>
            </td></tr></table></div><div id='item2body' style='position:absolute; left:0; top:202; width:120px; height:202px; z-index:3; overflow: hidden'><table width='100%' border='0' height='100%' cellpadding='2' cellspacing='0'><tr><td id='item2head' height='20' class='headtd1' onclick='showme(item2body,this)' align='center'>菜单2</td></tr><tr><td class='bodytd' align='center'>
              <table width="99%" border="0" cellspacing="1" cellpadding="1" height="100%">
                <tr> 
                  <td bgcolor="#D9ECFF" align="center"><a href="http://0755i.com" target="_blank">子菜单子菜单</a></td>
                </tr>
                <tr> 
                  <td bgcolor="#D9ECFF" align="center"><a href="http://0755i.com" target="_blank">子菜单子菜单</a></td>
                </tr>
                <tr> 
                  <td bgcolor="#D9ECFF" align="center"><a href="http://0755i.com" target="_blank">子菜单子菜单</a></td>
                </tr>
                <tr> 
                  <td bgcolor="#D9ECFF" align="center"><a href="http://0755i.com" target="_blank">子菜单子菜单</a></td>
                </tr>
                <tr> 
                  <td bgcolor="#D9ECFF" align="center"><a href="http://0755i.com" target="_blank">子菜单子菜单</a></td>
                </tr>
                <tr> 
                  <td bgcolor="#D9ECFF" align="center"><a href="http://0755i.com" target="_blank">子菜单子菜单</a></td>
                </tr>
                <tr> 
                  <td bgcolor="#D9ECFF" align="center"><a href="/">子菜单子菜单</a></td>
                </tr>
              </table>
            </td></tr></table></div><div id='item3body' style='position:absolute; left:0; top:224; width:120px; height:202px; z-index:4; overflow: hidden'><table width='100%' border='0' height='100%' cellpadding='2' cellspacing='0'><tr><td id='item3head' height='20' class='headtd1' onclick='showme(item3body,this)' align='center'>菜单3</td></tr><tr>
            <td class='bodytd' align='center'>自己在这里随便<br>
              添加点什么都可以</td>
          </tr></table></div><div id='item4body' style='position:absolute; left:0; top:246; width:120px; height:202px; z-index:5; overflow: hidden'><table width='100%' border='0' height='100%' cellpadding='2' cellspacing='0'><tr><td id='item4head' height='20' class='headtd1' onclick='showme(item4body,this)' align='center'>菜单4</td></tr><tr>
            <td class='bodytd' align='center'>自己在这里随便<br>
              添加点什么都可以</td>
          </tr></table></div></div></body></html>
      

  2.   

    用JScrollPane来实现 然后隐藏滚动条 然后随便弄一个图表呀 按钮呀 点击后让JScrollPane滚动  就是getVerticalScrollBar().setValue(...);你参考swing的书看一看吧