jquery版
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "[http://www.w3.org/TR/html4/loose.dtd](https://www.oschina.net/action/GoToLink?url=http%3A%2F%2Fwww.w3.org%2FTR%2Fhtml4%2Floose.dtd)">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
<script type="text/javascript" src="js/jquery-1.4.4.js"></script>
<script type="text/javascript">
$(function()
{
$("#move").bind("mousedown",function()
{
var mouserelativepX=event.offsetX;
var mouserelativepY=event.offsetY;
$(this).bind("mousemove");
this.setCapture();
$("#move").bind("mousemove",function()
{
var x=event.clientX-mouserelativepX;
var y=event.clientY-mouserelativepY;
$(this).css({left:x,top:y});
});
$("#move").bind("mouseup",function()
{
$(this).unbind("mousemove");
this.releaseCapture();
});
});
});
</script>
</head>
<body>
<div id='move' style="position: absolute;cursor:move; z-index: 100;width: 30px;height: 30px; border: 1px solid #efefef;vertical-align: middle;" align="center">go</div>
</body>
</html>
javascript版
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "[http://www.w3.org/TR/html4/loose.dtd](https://www.oschina.net/action/GoToLink?url=http%3A%2F%2Fwww.w3.org%2FTR%2Fhtml4%2Floose.dtd)">
<html>
<head>
<script src="js/jquery-1.4.4.js" type="text/javascript" charset="utf-8"></script>
<script type="text/javascript">
window.onload=function(){
objDiv = document.getElementById('drag');
drag(objDiv);
};
function drag(dv){
dv.onmousedown=function(e){
var d=document;
e = e || window.event;
var x= e.layerX || e.offsetX;
var y= e.layerY || e.offsetY;
document.all.x.value=x;
document.all.y.value=y;
//设置捕获范围
if(dv.setCapture){
dv.setCapture();
}else if(window.captureEvents){
window.captureEvents(Event.MOUSEMOVE | Event.MOUSEUP);
}
d.onmousemove=function(e){
e= e || window.event;
if(!e.pageX)e.pageX=e.clientX;
if(!e.pageY)e.pageY=e.clientY;
var tx=e.pageX-x;
var ty=e.pageY-y;
document.all.tx.value=tx;
document.all.ty.value=ty;
dv.style.left=tx;
dv.style.top=ty;
$(dv).css({left:tx,top:ty});
};
d.onmouseup=function(){
//取消捕获范围
if(dv.releaseCapture){
dv.releaseCapture();
}else if(window.captureEvents){
window.captureEvents(Event.MOUSEMOVE|Event.MOUSEUP);
}
//清除事件
d.onmousemove=null;
d.onmouseup=null;
};
};
}
</script>
</head>
<body>
<div id="drag" style=" position:absolute;left:120px;top:24px;width:100;height:150;border:1px solid #000000;z-index:1;background:#eeeeee;cursor: move;">drag me</div>
x:<input type="text" name="x"> y:<input type="text" name="y">
</br>
tx:<input type="text" name="tx"> ty:<input type="text" name="ty">
</body>
</html>