jquery ajax pt2

ajax同步输入更新


index.jsp

<%@ 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">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
<script type="text/javascript" src="jquery.js"></script>
<style type="text/css">
#ajaxinfo {
	position: relative;
	padding: 10px;
	background-color: orange;
	color: white;
}
</style>

<script type="text/javascript">
	function postdata(data){
		$.post('z.jsp',{input:data},function(returned){
			$('#ajaxinfo').html( returned );
		});
	}
</script>

</head>
<body>
<input type="text" name="forminput" onkeydown="postdata(this.value);" onkeyup="postdata(this.value);" />
<div id="ajaxinfo">
</div>
</body>
</html>

z.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
	pageEncoding="UTF-8"%>
<% 
String str=request.getParameter("input");
out.print("str: "+str);
%>

jquery ajax pt2_第1张图片




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