日期:2014-05-16  浏览次数:20419 次

jQuery(8)---jQuery中googlesuggest的实现(数据库调用@Hibernate+struts2)

页面如下:


核心源码如下:

suggest.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
	String path = request.getContextPath();
	String basePath = request.getScheme() + "://"
			+ request.getServerName() + ":" + request.getServerPort()
			+ path + "/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
	<head>
		<base href="<%=basePath%>">

		<title>My JSP 'suggest.jsp' starting page</title>

		<meta http-equiv="pragma" content="no-cache">
		<meta http-equiv="cache-control" content="no-cache">
		<meta http-equiv="expires" content="0">
		<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
		<meta http-equiv="description" content="This is my page">
		<!--
	<link rel="stylesheet" type="text/css" href="styles.css">
	-->
		<script type="text/javascript"
			src="${ pageContext.request.contextPath}/js/jquery-1.9.1.js">
</script>
		<script type="text/javascript"
			src="${ pageContext.request.contextPath}/js/suggest.js">
</script>

		<style type="text/css">
.s_ipt {
	width: 405px;
	height: 30px;
	font: 16px/ 22px arial;
	margin: 5px 0 0 7px;
	background: #fff;
	outline: 0;
	-webkit-appearance: none;
}

.s_wds {
	width: 405px;
	height: 200px;
	font: 16px/ 22px arial;
	background: #fff;
	display: none;
}
</style>
	</head>

	<body>
		<div align="center">
		<h2>jQuery中googlesuggest的实现</h2><hr/>
			<div>
				<input type="text" id="keyword" class="s_ipt" />
				  
				<input type="button" value="百度一下" />				
			</div>
			<div>
				<select id="words" multiple="multiple" size="10" class="s_wds"></select>
				            
				
			</div>
		</div>
	</body>
</html>

suggest.js

$(document).ready(function() {
	
	// 给input输入框注册 keyup事件
	$("#keyword").bind("keyup", function() {
		$("#words").show();
		// 获取收入的值
		var keyVal = $(this).val();
		
		if ("" == keyVal) {
			// 清空
			$("#words").empty().hide();// 对象链式操作
			return;
		}
		// 发送ajax请求
		$.post("./csdn/UserAction_keyVals.action?time=" + new Date().getTime(),
				{
					keyword : keyVal
				}, function(data) {
					// 清空
					$("#words").empty();

					// 获取所有的相关的数据
					var jsonusers = data.users;
					// 遍历数组
					for (var i = 0; i < jsonusers.length; i++) {
						// 得到具体的user对象
						var jsonuser = jsonusers[i];
						// 创建option
						var $optu = $("<option></option>");
						// 设置文本
						$optu.text(jsonuser.name);

						// 把创建的option添加到select中
						$("#words").append($optu).show();
					}

				}, "json");

	});

	$("#words").bind("dblclick", function() {
				$("#keyword").val($(this).val());
				$("#words").empty().hide();
			});

	$("#words").bind("keyup", function(event) {
				var key = event.which;
				if (key == 13) {
					$("#keyword").val($(this).val());
					$("#words").empty().hide();
				}

			});

});


User.java

package www.csdn.project.domain;

public class User {
	
	
	private String n