tornado硬件管理系统-websocket的c/s模式（4）

hjhmpl

2020-06-14

创建视图连接池

#-*- coding: utf-8 -*-#app/views/views_real_time.py
from sockjs.tornado import SockJSConnection

class RealTimeHandler(SockJSConnection):
    #建立连接池
    waiters = set()
    def on_open(self, request):
        try:
            self.waiters.add(self)
        except Exception as e:
            print(e)

    #发送消息
    def on_message(self, message):
        try:
            #
            self.broadcast(self.waiters,message)
        except Exception as e:
            print(e)
    #关闭连接
    def on_close(self):
        try:
            self.waiters.remove(self)
        except Exception as e:
            print(e)

做路由映射：

#-*- coding: utf-8 -*-
from sockjs.tornado import SockJSRouter
from app.views.views_index import IndexHandler as index
from app.views.views_real_time import RealTimeHandler as real_time
#配置路由视图映射规则
urls = [
    (r"/",index)
]+SockJSRouter(real_time,"/real/time").urls

导入index.html文件处理路径问题

<!doctype html>
<html lang="en">
<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
    <meta name="description" content="">
    <meta name="author" content="">
    <title>硬件实时监控</title>
    <link href="{{static_url(‘dist/css/bootstrap.min.css‘)}}" rel="stylesheet">
    <link href="{{static_url(‘css/dashboard.css‘)}}" rel="stylesheet">
    <script src="{{static_url(‘js/analogClock.js‘)}}"></script>
</head>

<body>
<nav class="navbar navbar-dark fixed-top bg-dark flex-md-nowrap p-0 shadow">
    <a class="navbar-brand col-sm-3 col-md-2 mr-0" href="#">硬件实时监控</a>
</nav>

<div class="container-fluid">
    <div class="row">
        <nav class="col-md-2 d-none d-md-block bg-light sidebar">
            <div class="sidebar-sticky">
                <ul class="nav flex-column">
                    <li class="nav-item">
                        <a class="nav-link active" href="#">
                            系统监控
                        </a>
                    </li>
                    <li class="nav-item">
                        <a class="nav-link active" href="#">
                            日志统计
                        </a>
                    </li>
                </ul>
                <div class="col-md-12">
                    <div class="card text-white bg-dark mb-3">
                        <div class="card-header">当前时间</div>
                        <div class="card-body" id="clock"></div>
                    </div>
                </div>
            </div>
        </nav>

        <main role="main" class="col-md-9 ml-sm-auto col-lg-10 px-4">
            <div class="d-flex justify-content-between flex-wrap flex-md-nowrap align-items-center pt-3 pb-2 mb-3 border-bottom">
                <h5>系统监控</h5>
            </div>
            <!--内容部分-->

            <div class="jumbotron foot-section">
                <hr class="my-4">
                <div class="container">
                    <div class="row">
                        <div class="col-md-2">
                            <img data-src="{{static_url(‘images/face.png‘)}}"
                                 class="lazyload blur-up img-fluid mx-auto d-block">
                        </div>
                        <div class="col-md-4">
                            <h5>topass123</h5>
                            <p class="info-text">— 人生苦短，我用Python！</p>
                            <p class="info-text">微信：ooooooooooo</p>
                            <p class="info-text">手机：kkkkkkkkkkk</p>
                            <p class="info-text">邮箱：</p>
                            <p class="info-text">编程爱好者，擅长python、centos,hadoop集群搭建等技术。</p>
                        </div>
                        <div class="col-md-6">
                            <div class="row">
                                <div class="col-md-4">
                                    <p class="text-center info-text">站长微信</p>
                                    <img data-src="{{static_url(‘images/weixin.jpg‘)}}"
                                         class="lazyload blur-up img-fluid mx-auto d-block">
                                </div>
                                <div class="col-md-4">
                                    <p class="text-center info-text">站长QQ</p>
                                    <img data-src="{{static_url(‘images/qq.jpg‘)}}"
                                         class="lazyload blur-up img-fluid mx-auto d-block">
                                </div>
                                <div class="col-md-4">
                                    <p class="text-center info-text">python问答QQ群</p>
                                    <img data-src="{{static_url(‘images/qq_group.jpg‘)}}"
                                         class="lazyload blur-up img-fluid mx-auto d-block">
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
                <hr class="my-4">
                <div class="container">
                    <ul class="list-inline text-center">
                        <li class="info-text"><a href="http://www.miibeian.gov.cn/" target="_blank">滇ICP备17011280号</a>
                        </li>
                        <li class="info-text">© 2020 topass123[学习交流与分享]</li>
                    </ul>
                </div>
            </div>
        </main>
    </div>
</div>

<script src="https://cdn.bootcss.com/lazysizes/4.0.2/lazysizes.min.js"></script>
<!--导入sockjs-client-->
<script src="https://cdn.bootcss.com/sockjs-client/1.3.0/sockjs.min.js"></script>
<script src="{{static_url(‘js/monitor.js‘)}}"></script>
<script>
    AnalogClock("clock", new AnalogClockOption(200, "#eee", "#333"));
</script>
</body>
</html>

处理系统查找，使用路径拼接的方式

#-*- coding: utf-8 -*-#app/configs.py
import os
root_path = os.path.dirname(__file__)
#配置调试模式

configs = dict(
    debug = True,
    template_path = os.path.join(root_path,"templates"),
    static_path = os.path.join(root_path,"static"),
)

渲染网页，即可看到完美的页面

#-*- conding: utf-8 -*-
import tornado.web

#定义一个首页视图
class IndexHandler(tornado.web.RequestHandler):
    def get(self,*args,**kwargs):
        self.render("index.html")

最后使用websocketjs实现长连接。

//定义长连接
var conn = null;

//定义连接的函数
function  connect() {
    //优先将以前的所有的连接关闭掉。
    disconnect();
    //定义协议
    var transports = ["websocket"];
    //创建连接的对象
    conn = new SockJS("http://"+window.location.host+"/real/time",transports);
    //创建连接
    conn.onopen=function () {
        console.log("is success");
    };
    //连接发送消息
    conn.onmessage=function (e) {
        console.log(e.data)
    };
    //连接关闭
    conn.onclose=function () {
        console.log("is colse")
    };
    //每个几秒触发一个事件,解决连接是否完成的
    setInterval(function () {
        conn.send("system");

    },1000);
}

//定义断开连接函数
function disconnect() {
    if (conn!=null){
        conn.close();
        conn=null;
    }
}

//刷新页面的时候，处理断开与重连的函数，重连判断
if(conn==null){
    connect()
}else{
    disconnect();
}

tornado websocket