jQuery treeview在JSP中的应用

来源：互联网发布：网络用语411是什么意思编辑：程序博客网时间：2024/05/20 16:10

1. 配置，其中jquery.js和jquery.cookie.js要用jquery-treeview/ lib/下的

2. navigation.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"

pageEncoding="UTF-8"%>

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>

<%@ taglib prefix="sql" uri="http://java.sun.com/jsp/jstl/sql"%>

<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt"%>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<html>

<head>

<title>Insert title here</title>

$(document).ready(function(){

$("#navigation").treeview({

control: "#treecontrol",

persist: "location",

collapsed: true

});

</script>

</head>

<body>

href="http://bassistance.de/jquery-plugins/jquery-plugin-treeview/">jQuery

Treeview Plugin</a> Demo

</h1>

<h4>

Sample - navigation

</h4>

<a title="Collapse the entire tree below" href="#"><img

src="images/minus.gif" /> Collapse All</a>

<a title="Expand the entire tree below" href="#"><img

src="images/plus.gif" /> Expand All</a>

title="Toggle the tree below, opening closed branches, closing open branches"

href="#">Toggle All</a>

</div>

<c:forEach var="list" items="${list}">

<li>

${list.item}

<c:if test="${empty list.itemsForItemId == false}">

<ul>

<c:forEach var="list1" items="${list.itemsForItemId}">

<li>

${list1.item}

</li>

</c:forEach>

</ul>

</c:if>

</li>

</c:forEach>

</ul>

</div>

</body>

</html>

3. TestController

@Controller

public class TestController {

@Autowired

TestDao testDao;

@RequestMapping("/navigation.html")

public String navigation(HttpServletRequest request) {

request.setAttribute("list", testDao.findTopItem());

return "navigation";

}

@RequestMapping("/async.html")

public String async(HttpServletRequest request) {

return "async";

}

4. TestDaoImpl

@Repository("testDao")

public class TestDaoImpl extends HibernateBaseDao implements TestDao {

@SuppressWarnings("unchecked")

public List<Item> findTopItem() {

return getHibernateTemplate().find("from Item where itemLevel = 1");

}

@SuppressWarnings("unchecked")

public List<Item> find(Long itemId) {

return getHibernateTemplate().find("from Item a where a.itemId = ?",

itemId);

}

@SuppressWarnings("unchecked")

public List<Item> findSubItem(Long itemId) {

List<Item> list = new ArrayList();

List<Item> itemList = find(itemId);

Set<Item> subList = itemList.get(0).getItemsForItemId();

for (Item item2 : subList) {

list.add(item2);

}

return list;

}

public Boolean hasSubItem(Long itemId) {

Boolean ret = false;

List<Item> subList = findSubItem(itemId);

if (!subList.isEmpty()) {

ret = true;

}

return ret;

}