面包屑导航介绍一般的内容型网站,例如CMS都会有这种面包屑导航。总结起来它有以下优势
面包屑导航介绍
一般的内容型网站,例如CMS都会有这种面包屑导航。总结起来它有以下优势:
让用户了解目前所在的位置,以及当前页面在整个网站中所在的位置;
体现了网站的架构层级;提高了用户体验;
减少返回到上一级页面的操作;
实现效果
那我们应该如何实现?我看网上多数都是只提供静态实现,
这里我结合bootstrap 和 spring boot以及mysql来做一个完整的例子。
表结构设计
图里面的菜单其实是分级维护上下级关系的。我这里用到了2级,表里有level字段标记。
点击第1级加载第2级分类,点击第2级分类名称则展示面包屑导航。
CREATE TABLE `tb_category` (
`id` bigint(20) NOT NULL AUTO_INCREMENT,
`category_name` varchar(100) NOT NULL,
`parent_id` bigint(20) DEFAULT NULL,
`level` tinyint(1) DEFAULT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=8 DEFAULT CHARSET=utf8;
insert into tb_category values(1,'Java文档',0,1);
insert into tb_category values(2,'Java多线程',1,2);
insert into tb_category values(3,'Spring Boot',1,2);
insert into tb_category values(4,'微服务实战',1,2);
insert into tb_category values(5,'Java视频',0,1);
insert into tb_category values(6,'Java基础',5,2);
insert into tb_category values(7,'Java基础',1,2);
commit;
前端代码
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org"
xmlns:sec="http://www.thymeleaf.org/extras/spring-security">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>响应式布局</title>
<link href="https://cdn.bootcss.com/twitter-bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
<input type="text" id="ctx" hidden="hidden" th:value="${#request.getContextPath()}">
<div class="container-fluid">
<!--页头-->
<nav class="navbar navbar-inverse">
<div class="container-fluid">
<!-- Brand and toggle get grouped for better mobile display -->
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse"
data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" th:href="@{'/breadCrumb'}" rel="external nofollow" >Java分享</a>
</div>
<!-- Collect the nav links, forms, and other content for toggling -->
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
<ul class="nav navbar-nav" id="navbar">
</ul>
</div>
</div>
</nav>
<!--面包屑-->
<ol class="breadcrumb">
</ol>
<div class="list-group" id="submenu-list">
</div>
</div>
<script src="https://cdn.bootcss.com/jquery/3.4.0/jquery.min.js"></script>
<script src="https://cdn.bootcss.com/twitter-bootstrap/3.3.7/js/bootstrap.min.js"></script>
<script>
var ctx=$("#ctx").val();
$(function () {
// 获取一级菜单
getMenu(null,1);
});
function getMenu(id, level){
var json = {parentId:id,level:level};
$.ajax({
url: ctx+"/myCategory/list",
type: "POST",
contentType: "application/json",
dataType: "json",
data: JSON.stringify(json),
success: function (result) {
var text='';
if (result.success) {
if(result.data != null){
// 一级菜单
if(level!=null){
$.each(result.data, function (i, r) {
text += '<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" οnclick="getMenu('+r.id+')">'+r.categoryName+'</a></li>'
});
$("#navbar").empty();
$("#navbar").append(text);
}
// 子菜单
if(id!=null){
$.each(result.data, function (i, r) {
console.log(i);
text += '<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="list-group-item" οnclick="getBreadCrumb('+r.id+')">'+r.categoryName+'</a>'
});
$("#submenu-list").empty();
$("#submenu-list").append(text);
}
}
} else {
alert(result.message);
}
}
});
}
// 生成面包屑导航
function getBreadCrumb(id) {
var param = {id:id};
$.ajax({
url: ctx+"/myCategory/getParentList",
type: "GET",
data: {"id":id},
success: function (result) {
var text='';
if(result.data!=null){
text = '<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >首页</a></li>';
$.each(result.data, function (i, r) {
text += '<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >'+r.categoryName+'</a></li>'
});
$(".breadcrumb").empty();
$(".breadcrumb").append(text);
}
}
})
}
</script>
</body>
</html>
总结
以上所述是小编给大家介绍的bootstrap+spring boot实现面包屑导航功能,希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对脚本之家网站的支持! 如果你觉得本文对你有帮助,欢迎转载,烦请注明出处,谢谢!
bootstrap spring boot bootstrap 面包屑导航