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logtail.html 8.8 KB
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<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <link rel="shortcut icon" href="/favicon.ico" type="image/x-icon">
    <meta http-equiv="Cache-Control" content="no-siteapp;no-transform">
    <meta name="applicable-device" content="pc,mobile">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <meta http-equiv="Content-Type" content="text/html;charset=utf-8">
    <title>tvbox实时日志</title>
    <script src="/static/js/jquery.min.js"></script>
    <link href="/static/css/jquery-confirm.min.css" rel="stylesheet">
    <script src="/static/js/jquery-confirm.min.js"></script>
<!--    <script src="https://cdn.bootcdn.net/ajax/libs/jquery/3.6.1/jquery.min.js"></script>-->
<!--    <link href="https://cdn.bootcdn.net/ajax/libs/jquery-confirm/3.3.4/jquery-confirm.min.css" rel="stylesheet">-->
<!--    <script src="https://cdn.bootcdn.net/ajax/libs/jquery-confirm/3.3.4/jquery-confirm.min.js"></script>-->
    <style>
        .support{
            background: #5dc2f1;
            color: #FFFFFF;
            text-align: center;
        }
        #title{
            background: #000000;
            color: #5dc2f1;
        }
        #height{
            margin-left: 10px;
        }
        #msg{
            /*white-space: pre;*/
            text-align: left;
            /*word-wrap: break-word;*/
            /*word-break: normal;*/
        }
        #log-container{
            overflow-y: scroll;
            background: #333;
            color: #aaa;
            /*上右下左*/
            padding:1px 2px 10px 2px;
        }
        #clearLog{
            background: #f06e57;
            color: #FFFFFF;
        }
    </style>
</head>
<body>
    <div class="support"></div>
    <div id="title">
        <strong>tvbox实时日志 by道长</strong>
        <span id="height"></span>
        <button id="clearLog">清空日志</button>
    </div>
    <div id="log-container">
		<div id="msg">
		</div>
	</div>
    <div class="support"></div>

    <script>
        Date.prototype.Format = function (fmt) { // author: meizz
            var o = {
                "M+": this.getMonth() + 1, // 月份
                "d+": this.getDate(), // 日
                "h+": this.getHours(), // 小时
                "m+": this.getMinutes(), // 分
                "s+": this.getSeconds(), // 秒
                "q+": Math.floor((this.getMonth() + 3) / 3), // 季度
                "S": this.getMilliseconds() // 毫秒
            };
            if (/(y+)/.test(fmt))
                fmt = fmt.replace(RegExp.$1, (this.getFullYear() + "").substr(4 - RegExp.$1.length));
            for (var k in o)
                if (new RegExp("(" + k + ")").test(fmt)) fmt = fmt.replace(RegExp.$1, (RegExp.$1.length == 1) ? (o[k]) : (("00" + o[k]).substr(("" + o[k]).length)));
                    return fmt;
        }
        function getWsUrl() {
            let host = location.host;
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            let hostname = location.hostname;
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            let protocol = 'ws:';
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            let port = location.port;
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            let pathname = '/ws';
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            let ws_port = parseInt(port)+1;
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            return protocol+'//'+host+pathname;
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            // return protocol+'//'+hostname+':'+ws_port+pathname;
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        }
        // const websocketUrl = 'ws://localhost:8080/log';
        const websocketUrl = getWsUrl();
        const test_msg = true;
        const test_count = 10;
        const reconnect_time = 5000;
        var lockReconnect = false;//避免重复连接
        var ws = null; //WebSocket的引用

        function initHeight(){//动态刷新日志框高度自适应设备
            var div_height = window.screen.availHeight;
	        var height = Math.ceil(div_height*0.75);
	        $('#height').text('日志窗口高度:'+height);
	        $("#log-container").height(height);
        }
        initHeight();
        window.onresize = () =>{
　　      //只要窗口高度发生变化，就会进入这里面，在这里就可以写，回到聊天最底部的逻辑
            initHeight();
        }
        function checkLoading(){// loading用,无实际意义
            $.confirm({
                closeIcon: true,
                title: '请稍等',
                content: '正在检查websocket连接...',
                autoClose: 'ok|2000',
                buttons: {
                    ok: {
                        text: '确定',
                        action: function () {
                            console.log('检查完毕,一切正常');
                        }
                    },
                    cancel: {
                        text: '取消',
                        action(){
                            // $.alert('已取消');
                        }
                    }
                }
            });
        }
        function checkSupport() {//检查浏览器是否支持websocket
            var sp = $(".support");
             if (window.WebSocket) {
             sp.html('您的浏览器支持多个websocket通信的实例');
             return true;
             }
             else {
             sp.html('您的浏览器不支持多个websocket通信的实例,建议使用火狐浏览器或者谷歌浏览器');
             return false;
             }
        }

        function createWebSocket(){//创建ws连接并监听ws事件
		    let can_ws = checkSupport();
            // console.log('can_ws:',can_ws);
            if(can_ws){
                // 指定websocket路径
                try {
                    console.log('开始连接:'+websocketUrl);
                    ws = new WebSocket(websocketUrl);
                    initEventHandle();
                }catch (e) {
                    reconnect();
                }
            }
	    }

        /**
         * 自动重连
         */
        function reconnect() {
        if(!lockReconnect){
            lockReconnect = true;
            //没连接上会一直重连，设置延迟避免请求过多
            setTimeout(function () {
                createWebSocket(websocketUrl);
                addMsg("正在重连，当前时间"+new Date().Format("yyyy-MM-dd hh:mm:ss"));
                lockReconnect = false;
            }, reconnect_time); //这里设置重连间隔(ms)
        }
        }
        function initEventHandle(){
            ws.onopen = function(event) {
                addMsg("websocket连接成功，当前时间"+new Date().Format("yyyy-MM-dd hh:mm:ss"));
            }
            ws.onmessage = function(event) {
                // 接收服务端的实时日志并添加到HTML页面中
                let msg = event.data;
                addMsg(msg);
            };
            ws.onclose = function(event) {
                addMsg('websocket连接关闭');
                reconnect();
            };
            ws.onerror = function(event){
            //如果出现连接、处理、接收、发送数据失败的时候触发onerror事件
            //     let msg = "websocket发生错误:"+event.data;
                let msg = "websocket发生错误,连接状态码:"+ws.readyState;
                // console.log(event);
                console.log(msg);
                addMsg(msg);
                reconnect();
            }
        }
        createWebSocket();
        function addMsg(msg){
            // 将Msg添加到日志框里
            if(msg&&msg.trim()&&!msg.endsWith('\n')){
                msg+='\n';
            }
            msg = msg.replaceAll('\n','</br>');
            $("#log-container div").append(msg);
            // 滚动条滚动到最低部
            $("#log-container").scrollTop($("#log-container div").height() - $("#log-container").height());
        }
        $(document).ready(function() {
            checkLoading();
            addMsg('websocket初始化中,当前ws服务地址=>  '+websocketUrl);
            if(test_msg){
            for(let i=0;i<test_count;i++){
                addMsg('2022-11-15 10:12:50 - E:\\python\\mypython\\dr_py\\lib\\site-packages\\gevent\\pywsgi.py[line:1226]:INFO:dr.log -- 127.0.0.1 - - [2022-11-15 10:12:50] "GET /static/img/favicon.svg HTTP/1.1" 200 155239 0.001139\n');
            }
            }

            $('#clearLog').click(function () {
                $.confirm({
                    title: '确认',
                    content: '确认清空日志?',
                    type: 'green',
                    icon: 'glyphicon glyphicon-question-sign',
                    buttons: {
                        ok: {
                            text: '确认',
                            btnClass: 'btn-primary',
                            action: function() {
                                $("#log-container div").text('');
                            }
                        },
                        cancel: {
                            text: '取消',
                            btnClass: 'btn-primary'
                        }
                    }
                });
            });
        });
</script>
</body>
</html>