tab栏切换,内容为不断实时刷新数据的vue实现方法

时间:2022-06-26 04:29:11

先说一下产品需求,就是有几个tab栏,每个tab栏对应的ajax请求不一样,内容区域一样,内容为实时刷新数据,每3s需要重新请求,返回的数据在内容区域展示,每点击一次tab栏需停止其他tab栏ajax请求,防止阻塞,首次加载页面的时候又不能5个ajax同时请求,只需要请求第一个就好

也没有必要建立5个区域,控制显示隐藏,浪费性能,业务代码就不贴了,把大概原理的代码贴上来

tab栏切换,内容为不断实时刷新数据的vue实现方法

先是用jq实现了一版

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no"/>
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<meta name="renderer" content="webkit">
<title>Title</title>
<script src="http://code.jquery.com/jquery-2.1.1.min.js"></script> </head>
<body> <div>
<ul>
<li>click</li>
<li>click</li>
<li>click</li>
<li>click</li>
<li>click</li>
</ul>
</div> <script>
var arr=[
function(){console.log(0);},
function(){console.log(1);},
function(){console.log(2);},
function(){console.log(3);},
function(){console.log(4);}
]; var seti=setInterval(arr[0],1000)
$('li').click(function(){
clearInterval(seti)
seti=setInterval(arr[$(this).index()],1000)
}) </script> </body>
</html>

再看vue版

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no"/>
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<meta name="renderer" content="webkit">
<title>Title</title> <script src="https://unpkg.com/vue@2.2.6/dist/vue.min.js"></script>
</head>
<body>
<div id="vm">
<button @click="tab(0)">click0</button>
<button @click="tab(1)">click1</button>
<button @click="tab(2)">click2</button>
<button @click="tab(3)">click3</button>
<button @click="tab(4)">click4</button>
<div>
<p>{{show}}</p>
</div>
</div>
<script>
var vm1 = new Vue({
el: '#vm',
data: {
arr:[
function(){console.log(0);},
function(){console.log(1);},
function(){console.log(2);},
function(){console.log(3);},
function(){console.log(4);}
],
time1:'',
time2:'',
show:'',
num:0, },
methods: {
tab: function(index){
//如果每个tab的方法不一样,提前用一个数组把方法保存起来
clearInterval(this.time1)
this.time1=setInterval(this.arr[index],1000)
//以下是调用同一种方法的时候可以不需要设置数组
this.num = 0
clearInterval(this.time2)
this.time2 = this.fun(index)
},
fun:function(index){
var _this=this;
return setInterval(function(){
//写个随机数显示在页面,具体业务需求应该是ajax请求
var random=String(parseInt(Math.random()*100000000000))
//字符一个一个显示在页面上
_this.show=index+random.substring(0,_this.num++);
},300) }
},
mounted:function(){
this.time1=setInterval(this.arr[0],1000)
}
}); </script>
</body>
</html>