前端使用Bootstrap主题框架AdminLTE，后台使用python语言的tornado作为web框架。利用tornado的模板作为主要的动态页面生成方式，以及巧妙使用模板将json数据渲染到页面hidden元素的值，然后在js中直接用eval函数计算隐藏域的值来生成图表JavaScript插件所需的json数据来生成页面中相应的可视化图表。
对于模板内容重复的问题，tornado 提供了模板继承的支持。这个机制和 Python 类 继承非常类似：我们可以定义一个父模板，一般会称之为基模板（base template）。基模板中包含完整的 HTML 结构和导航栏、页首、页脚都通用部分。 在子模板里，我们可以使用 extends 标签来声明继承自某个基模板。 基模板中需要在实际的子模板中追加或重写的部分则可以定义成块（block）。块使 用 block 标签创建， {% block 块名称 %} 作为开始标记， {% end %} 作为结束标记。通过在子模板里定义一个同样名 称的块，你可以向基模板的对应块位置追加或重写内容。
模板母页base.html代码如下：
代码语言：html复制<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>面向数据</title>
<!-- Tell the browser to be responsive to screen width -->
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- Font Awesome -->
<link rel="stylesheet" href="plugins/fontawesome-free/css/all.min.css">
<!-- Ionicons -->
<link rel="stylesheet" href="https://code.ionicframework.com/ionicons/2.0.1/css/ionicons.min.css">
<!-- Tempusdominus Bbootstrap 4 -->
<link rel="stylesheet" href="plugins/tempusdominus-bootstrap-4/css/tempusdominus-bootstrap-4.min.css">
<!-- Select2 -->
<link rel="stylesheet" href="../../plugins/select2/css/select2.min.css">
<link rel="stylesheet" href="../../plugins/select2-bootstrap4-theme/select2-bootstrap4.min.css">
<!-- iCheck -->
<link rel="stylesheet" href="plugins/icheck-bootstrap/icheck-bootstrap.min.css">
<!-- JQVMap -->
<link rel="stylesheet" href="plugins/jqvmap/jqvmap.min.css">
<!-- Theme style -->
<link rel="stylesheet" href="dist/css/adminlte.min.css">
<!-- overlayScrollbars -->
<link rel="stylesheet" href="plugins/overlayScrollbars/css/OverlayScrollbars.min.css">
<!-- Daterange picker -->
<link rel="stylesheet" href="plugins/daterangepicker/daterangepicker.css">
<!-- summernote -->
<link rel="stylesheet" href="plugins/summernote/summernote-bs4.css">
<!-- Google Font: Source Sans Pro -->
<link href="https://fonts.googleapis.com/css?family=Source Sans Pro:300,400,400i,700" rel="stylesheet">
{% block css %}{% end %}
</head>
<body class="hold-transition sidebar-mini layout-fixed">
<div class="wrapper">
<!-- Navbar -->
<nav class="main-header navbar navbar-expand navbar-white navbar-light">
<!-- Left navbar links -->
<ul class="navbar-nav">
<li class="nav-item">
<a class="nav-link" data-widget="pushmenu" href="#"><i class="fas fa-bars"></i></a>
</li>
<li class="nav-item d-none d-sm-inline-block">
<a href="./dashboard" target="_blank" class="nav-link">首页</a>
</li>
<li class="nav-item d-none d-sm-inline-block">
<a href="#" class="nav-link">反馈</a>
</li>
</ul>
<!-- SEARCH FORM -->
<form class="form-inline ml-3">
<div class="row" style="width: 450px;">
<div class="col-3">
<label>查询</label>
</div>
<div class="col-7">
<select class="form-control select2" multiple="multiple" style="width: 100%;" id="selectNames">
{%for i in range(len(dfNames)) %}
{%set row=dfNames.iloc[i] %}
<option {% if str(row['DevID']) in ids %} selected {% else %}{% end %} value="{{row['DevID']}}">{{row['DevID']}}</option>
{% end %}
</select>
</div>
<div class="col-2">
<button class="btn btn-navbar" type="button" id="btnSearch">
<i class="fas fa-search"></i>
</button>
</div>
</div>
<!-- <div class="input-group input-group-sm">
<input class="form-control form-control-navbar" type="search" placeholder="Search" aria-label="Search">
<div class="input-group-append">
<button class="btn btn-navbar" type="submit">
<i class="fas fa-search"></i>
</button>
</div>
</div> -->
</form>
<!-- Right navbar links -->
<!--
<ul class="navbar-nav ml-auto">
<li class="nav-item dropdown">
<a class="nav-link" data-toggle="dropdown" href="#">
<i class="far fa-comments"></i>
<span class="badge badge-danger navbar-badge">3</span>
</a>
<div class="dropdown-menu dropdown-menu-lg dropdown-menu-right">
<a href="#" class="dropdown-item">
<div class="media">
<img src="dist/img/user1-128x128.jpg" alt="User Avatar" class="img-size-50 mr-3 img-circle">
<div class="media-body">
<h3 class="dropdown-item-title">
刘
<span class="float-right text-sm text-danger"><i class="fas fa-star"></i></span>
</h3>
<p class="text-sm">一条数据异常...</p>
<p class="text-sm text-muted"><i class="far fa-clock mr-1"></i> 4 Hours Ago</p>
</div>
</div>
</a>
<div class="dropdown-divider"></div>
<a href="#" class="dropdown-item">
<div class="media">
<img src="dist/img/user8-128x128.jpg" alt="User Avatar" class="img-size-50 img-circle mr-3">
<div class="media-body">
<h3 class="dropdown-item-title">
张
<span class="float-right text-sm text-muted"><i class="fas fa-star"></i></span>
</h3>
<p class="text-sm">XXX小区报警</p>
<p class="text-sm text-muted"><i class="far fa-clock mr-1"></i> 4 Hours Ago</p>
</div>
</div>
</a>
<div class="dropdown-divider"></div>
<a href="#" class="dropdown-item">
<div class="media">
<img src="dist/img/user3-128x128.jpg" alt="User Avatar" class="img-size-50 img-circle mr-3">
<div class="media-body">
<h3 class="dropdown-item-title">
马
<span class="float-right text-sm text-warning"><i class="fas fa-star"></i></span>
</h3>
<p class="text-sm">数据库查询延迟</p>
<p class="text-sm text-muted"><i class="far fa-clock mr-1"></i> 4 Hours Ago</p>
</div>
</div>
</a>
<div class="dropdown-divider"></div>
<a href="#" class="dropdown-item dropdown-footer">所有信息</a>
</div>
</li>
<li class="nav-item dropdown">
<a class="nav-link" data-toggle="dropdown" href="#">
<i class="far fa-bell"></i>
<span class="badge badge-warning navbar-badge">15</span>
</a>
<div class="dropdown-menu dropdown-menu-lg dropdown-menu-right">
<span class="dropdown-item dropdown-header">15 Notifications</span>
<div class="dropdown-divider"></div>
<a href="#" class="dropdown-item">
<i class="fas fa-envelope mr-2"></i> 4 new messages
<span class="float-right text-muted text-sm">3 mins</span>
</a>
<div class="dropdown-divider"></div>
<a href="#" class="dropdown-item">
<i class="fas fa-users mr-2"></i> 8 friend requests
<span class="float-right text-muted text-sm">12 hours</span>
</a>
<div class="dropdown-divider"></div>
<a href="#" class="dropdown-item">
<i class="fas fa-file mr-2"></i> 3 new reports
<span class="float-right text-muted text-sm">2 days</span>
</a>
<div class="dropdown-divider"></div>
<a href="#" class="dropdown-item dropdown-footer">See All Notifications</a>
</div>
</li>
<li class="nav-item">
<a class="nav-link" data-widget="control-sidebar" data-slide="true" href="#">
<i class="fas fa-th-large"></i>
</a>
</li>
</ul>
-->
</nav>
<!-- /.navbar -->
<!-- Main Sidebar Container -->
<aside class="main-sidebar sidebar-dark-primary elevation-4">
<!-- Brand Logo -->
<a href="index3.html" class="brand-link">
<img src="dist/img/AdminLTELogo.png" alt="AdminLTE Logo" class="brand-image img-circle elevation-3" style="opacity: .8">
<span class="brand-text font-weight-light">物联网数据分析</span>
</a>
<!-- Sidebar -->
<div class="sidebar">
<!-- Sidebar user panel (optional) -->
<div class="user-panel mt-3 pb-3 mb-3 d-flex">
<div class="image">
<img src="dist/img/user2-160x160.jpg" class="img-circle elevation-2" alt="User Image">
</div>
<div class="info">
<a href="#" class="d-block">苗</a>
</div>
</div>
<!-- Sidebar Menu -->
<nav class="mt-2">
<ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu" data-accordion="false">
<!-- Add icons to the links using the .nav-icon class
with font-awesome or any other icon font library -->
<li class="nav-item has-treeview menu-open" data-menu="overview">
<a href="#" class="nav-link active">
<i class="nav-icon fas fa-tachometer-alt"></i>
<p>
总览
<i class="right fas fa-angle-left"></i>
</p>
</a>
<ul class="nav nav-treeview">
<li class="nav-item" data-menu="dashboard">
<a href="./dashboard" class="nav-link active">
<i class="far fa-circle nav-icon"></i>
<p>看板</p>
</a>
</li>
<li class="nav-item" data-menu="ids">
<a href="./ids" class="nav-link">
<i class="far fa-circle nav-icon"></i>
<p>设备</p>
</a>
</li>
<li class="nav-item" data-menu="map">
<a href="#" class="nav-link">
<i class="far fa-circle nav-icon"></i>
<p>地图</p>
</a>
</li>
</ul>
</li>
<li class="nav-item has-treeview" data-menu="data">
<a href="#" class="nav-link">
<i class="nav-icon fas fa-table"></i>
<p>
数据
<i class="right fas fa-angle-left"></i>
</p>
</a>
<ul class="nav nav-treeview">
<li class="nav-item" data-menu="minutes15">
<a href="./minutes15" class="nav-link">
<i class="far fa-circle nav-icon"></i>
<p>最近15分钟</p>
</a>
</li>
<li class="nav-item" data-menu="hour">
<a href="./hour" class="nav-link">
<i class="far fa-circle nav-icon"></i>
<p>最近一小时</p>
</a>
</li>
<li class="nav-item" data-menu="day">
<a href="./day" class="nav-link">
<i class="far fa-circle nav-icon"></i>
<p>最近一天</p>
</a>
</li>
<li class="nav-item" data-menu="year">
<a href="./year?ids=1" class="nav-link">
<i class="far fa-circle nav-icon"></i>
<p>最近一年(单设备)</p>
</a>
</li>
</ul>
</li>
<li class="nav-item has-treeview" data-menu="status">
<a href="#" class="nav-link">
<i class="nav-icon fas fa-chart-pie"></i>
<p>
状态监测
<i class="right fas fa-angle-left"></i>
</p>
</a>
<ul class="nav nav-treeview">
<li class="nav-item" data-menu="id">
<a href="./id?ids=1" class="nav-link">
<i class="far fa-circle nav-icon"></i>
<p>设备状态</p>
</a>
</li>
<li class="nav-item" data-menu="error">
<a href="./error" class="nav-link">
<i class="far fa-circle nav-icon"></i>
<p>报警和异常</p>
</a>
</li>
<li class="nav-item" data-menu="offline">
<a href="./offline" class="nav-link">
<i class="far fa-circle nav-icon"></i>
<p>掉线记录</p>
</a>
</li>
</ul>
</li>
</ul>
</nav>
<!-- /.sidebar-menu -->
</div>
<!-- /.sidebar -->
</aside>
<!-- Content Wrapper. Contains page content -->
{% block body %}子页面内容{% end %}
<!-- /.content-wrapper -->
<footer class="main-footer">
<strong>Copyright © 2014-2019 <a href="http://adminlte.io">AdminLTE.io</a>.</strong>
All rights reserved.
<div class="float-right d-none d-sm-inline-block">
<b>Version</b> 3.0.0-rc.1
</div>
</footer>
<!-- Control Sidebar -->
<aside class="control-sidebar control-sidebar-dark">
<!-- Control sidebar content goes here -->
</aside>
<!-- /.control-sidebar -->
</div>
<!-- ./wrapper -->
<!-- jQuery -->
<script src="plugins/jquery/jquery.min.js"></script>
<!-- jQuery UI 1.11.4 -->
<script src="plugins/jquery-ui/jquery-ui.min.js"></script>
<!-- Resolve conflict in jQuery UI tooltip with Bootstrap tooltip -->
<script>
$.widget.bridge('uibutton', $.ui.button)
</script>
<!-- Bootstrap 4 -->
<script src="plugins/bootstrap/js/bootstrap.bundle.min.js"></script>
<!-- Select2 -->
<script src="../../plugins/select2/js/select2.full.min.js"></script>
<!-- ChartJS -->
<script src="plugins/chart.js/Chart.min.js"></script>
<!-- Sparkline -->
<script src="plugins/sparklines/sparkline.js"></script>
<!-- JQVMap -->
<script src="plugins/jqvmap/jquery.vmap.min.js"></script>
<script src="plugins/jqvmap/maps/jquery.vmap.world.js"></script>
<!-- jQuery Knob Chart -->
<script src="plugins/jquery-knob/jquery.knob.min.js"></script>
<!-- daterangepicker -->
<script src="plugins/moment/moment.min.js"></script>
<script src="plugins/daterangepicker/daterangepicker.js"></script>
<!-- Tempusdominus Bootstrap 4 -->
<script src="plugins/tempusdominus-bootstrap-4/js/tempusdominus-bootstrap-4.min.js"></script>
<!-- Summernote -->
<script src="plugins/summernote/summernote-bs4.min.js"></script>
<!-- overlayScrollbars -->
<script src="plugins/overlayScrollbars/js/jquery.overlayScrollbars.min.js"></script>
<!-- AdminLTE App -->
<script src="dist/js/adminlte.js"></script>
<!-- AdminLTE dashboard demo (This is only for demo purposes) -->
<!-- AdminLTE for demo purposes -->
<script src="dist/js/demo.js"></script>
<script src="static/js/base.js"></script>
{% block script %}{% end %}
</body>
</html>
模板母页对应的js代码，主要实现搜索框点击搜索按钮时，页面根据搜索条件跳转url，以及根据当前页面url地址更新菜单栏当前菜单选中的样式。base.js如下：
代码语言：javascript复制 $(function () {
//Initialize Select2 Elements
$('.select2').select2({
theme: 'bootstrap4'
})
var baseUrl = document.location.pathname;
$('#btnSearch').click(function () {
var ids = $('#selectNames').val();
if (ids.length > 0) {
document.location = baseUrl "?ids=" ids.toString();
} else {
document.location = baseUrl;
}
});
$('.mt-2>ul>li.has-treeview.nav-item>ul>li>a').removeClass('active');
var menus=$('.content-wrapper').data('menu').split(' ');
console.log(menus);
var menu1=$('.nav-item.has-treeview[data-menu=' menus[0] ']');
menu1.addClass('menu-open');
menu1.siblings().removeClass('menu-open');
menu1.find('>a').addClass('active');
menu1.siblings().find('>a').removeClass('active');
console.log(menu1);
var menu2=menu1.find('ul.nav-treeview>li[data-menu=' menus[1] ']');
console.log(menu2);
menu2.find('>a').addClass('active');
})
web框架后台代码server.py代码如下：
代码语言：python代码运行次数：1复制# -*- coding:utf-8 -*-
import tornado.web
import tornado.httpserver
import tornado.ioloop
import queryDF
from tornado.options import define,options
import os
define('port',default=9000,type=int,help="input your port")
class pressureHandler(tornado.web.RequestHandler):
def get(self):
devID=self.get_argument('devID',None)
start=self.get_argument('start',None)
end=self.get_argument('end',None)
if((not devID) or (not start) or (not end)):
self.write({'result':'{}'})
return
result=queryDF.getData(int(devID),start,end)
self.write({'result':result})
class dashboardHandler(tornado.web.RequestHandler):
def get(self):
ids=self.get_argument('ids',None)
if ids!=None:
ids=ids.split(',')
else:
ids=[]
info=queryDF.getInfo(ids)
dfNames=queryDF.getNames()
self.render('dashboard.html',info=info,dfNames=dfNames,ids=ids)
class dayHandler(tornado.web.RequestHandler):
def get(self):
ids=self.get_argument('ids',None)
if ids!=None:
ids=ids.split(',')
else:
ids=[]
df0=queryDF.getDay(ids)
dfNames=queryDF.getNames()
self.render('day.html',df0=df0,dfNames=dfNames,ids=ids)
class minutes15Handler(tornado.web.RequestHandler):
def get(self):
ids=self.get_argument('ids',None)
if ids!=None:
ids=ids.split(',')
else:
ids=[]
df0=queryDF.getMinutes15(ids)
dfNames=queryDF.getNames()
self.render('minutes15.html',df0=df0,dfNames=dfNames,ids=ids)
class offlineHandler(tornado.web.RequestHandler):
def get(self):
ids=self.get_argument('ids',None)
if ids!=None:
ids=ids.split(',')
else:
ids=[]
minutes=self.get_argument('minutes',16)
minutes=int(minutes)
dfNames=queryDF.getNames()
df0=queryDF.getDeltaM(ids,minutes)
self.render('offline.html',df0=df0,dfNames=dfNames,ids=ids,minutes=minutes)
class hourHandler(tornado.web.RequestHandler):
def get(self):
ids=self.get_argument('ids',None)
if ids!=None:
ids=ids.split(',')
else:
ids=[]
df0=queryDF.getHour(ids)
dfNames=queryDF.getNames()
self.render('hour.html',df0=df0,dfNames=dfNames,ids=ids)
class idsHandler(tornado.web.RequestHandler):
def get(self):
ids=self.get_argument('ids',None)
if ids!=None:
ids=ids.split(',')
else:
ids=[]
df0=queryDF.getIds(ids)
dfNames=queryDF.getNames()
self.render('ids.html',df0=df0,dfNames=dfNames,ids=ids)
class idHandler(tornado.web.RequestHandler):
def get(self):
ID=self.get_argument('ids',None)
print(ID)
info=queryDF.getId(ID)
dfNames=queryDF.getNames()
self.render('id.html',info=info,dfNames=dfNames,ids=[ID])
class yearHandler(tornado.web.RequestHandler):
def get(self):
ids=self.get_argument('ids',None)
if ids!=None:
ids=ids.split(',')
else:
ids=[]
df0=queryDF.getYear(ids)
dfNames=queryDF.getNames()
self.render('year.html',df0=df0,dfNames=dfNames,ids=ids)
class errorHandler(tornado.web.RequestHandler):
def get(self):
ids=self.get_argument('ids',None)
if ids!=None:
ids=ids.split(',')
else:
ids=[]
info=queryDF.getError(ids)
dfNames=queryDF.getNames()
self.render('error.html',info=info,dfNames=dfNames,ids=ids)
app=tornado.web.Application(
handlers=[
(r'/', tornado.web.RedirectHandler, {"url": "/dashboard?ids=1"}),
(r'/dashboard',dashboardHandler),
(r'/day',dayHandler),
(r'/id',idHandler),
(r'/ids',idsHandler),
(r'/hour',hourHandler),
(r'/year',yearHandler),
(r'/offline',offlineHandler),
(r'/minutes15',minutes15Handler),
(r'/error',errorHandler),
(r'/api/pressure',pressureHandler),
(r'/dist/(.*)',tornado.web.StaticFileHandler,{'path':'static/AdminLTE/dist'}),
(r'/plugins/(.*)',tornado.web.StaticFileHandler,{'path':'static/AdminLTE/plugins'}),
],
template_path=os.path.join(os.path.curdir,'templates'),static_path=os.path.join(os.path.curdir,'static'),cookie_secret='miaojiyue',debug=True
)
if __name__=='__main__':
queryDF.loadData()
tornado.options.parse_command_line()
httpserver=tornado.httpserver.HTTPServer(app)
httpserver.listen(options.port)
tornado.ioloop.IOLoop.instance().start()
