如何每30秒刷新一个DIV内容?



我正在尝试刷新某个div以每30秒刷新一次。在我的HTML页面上还有其他的div,但是它们不需要刷新。

这个想法是重新加载/刷新div本身。

我试过这个脚本,但不能让它工作。这是我的HTML和Javascript代码我的html文件中的路径是

<link rel="stylesheet" href="./difcol.css" type="text/css" media="screen">
这是我的css文件刷新。

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script>
$(document).ready(function() {
setInterval(function() {
$("refresh").load(window.location.href + " refresh");
}, 30000);
});
</script>
<div id="refresh" class="sp-container">
<div class="sp-content">
<div class="sp-globe"></div>
<h2 class="frame-1">1</h2>
<h2 class="frame-2">2</h2>
<h2 class="frame-3">3</h2>
<h2 class="frame-4">4</h2>
<h2 class="frame-5">5</h2>
<h2 class="frame-6">6</h2>
<h2 class="frame-7">
<span>a,</span>
<span>b,</span>
<span>c</span>
</h2>
</div>
</div>

@import url('https://fonts.googleapis.com/css?family=Barlow');
body {
background: #310404 url(https://i.ytimg.com/vi/wOvQAhzWCrM/maxresdefault.jpg) no-repeat center center fixed; 
-webkit-background-size: cover;
-moz-background-size: cover;
-o-background-size: cover;
background-size: cover;
font-family: 'Barlow', sans-serif;
}
.container {
width: 100%;
position: relative;
overflow: hidden;
}
a {
text-decoration: none;
}
h1.main, p.demos {
-webkit-animation-delay: 18s;
-moz-animation-delay: 18s;
-ms-animation-delay: 18s;
animation-delay: 18s;
}
.sp-container {
position: fixed;
top: 0px;
left: 0px;
width: 100%;
height: 100%;
z-index: 0;
background: -webkit-radial-gradient(rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0.3) 35%, rgba(0, 0, 0, 0.7));
background: -moz-radial-gradient(rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0.3) 35%, rgba(0, 0, 0, 0.7));
background: -ms-radial-gradient(rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0.3) 35%, rgba(0, 0, 0, 0.7));
background: radial-gradient(rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0.3) 35%, rgba(0, 0, 0, 0.7));
}
.sp-content {
position: absolute;
width: 100%;
height: 100%;
left: 0px;
top: 0px;
z-index: 1000;
}
.sp-container h2 {
position: absolute;
top: 50%;
line-height: 100px;
height: 90px;
margin-top: -50px;
font-size: 90px;
width: 100%;
text-align: center;
color: transparent;
-webkit-animation: blurFadeInOut 3s ease-in backwards;
-moz-animation: blurFadeInOut 3s ease-in backwards;
-ms-animation: blurFadeInOut 3s ease-in backwards;
animation: blurFadeInOut 3s ease-in backwards;
}
.sp-container h2.frame-1 {
font-size: 200px;
-webkit-animation-delay: 0s;
-moz-animation-delay: 0s;
-ms-animation-delay: 0s;
animation-delay: 0s;
}
.sp-container h2.frame-2 {
font-size: 200px;
-webkit-animation-delay: 3s;
-moz-animation-delay: 3s;
-ms-animation-delay: 3s;
animation-delay: 3s;
}
.sp-container h2.frame-3 {
font-size: 200px;
-webkit-animation-delay: 6s;
-moz-animation-delay: 6s;
-ms-animation-delay: 6s;
animation-delay: 6s;
}
.sp-container h2.frame-4 {
font-size: 200px;
-webkit-animation-delay: 9s;
-moz-animation-delay: 9s;
-ms-animation-delay: 9s;
animation-delay: 9s;
}
.sp-container h2.frame-5 {
font-size: 200px;
-webkit-animation-delay: 12s;
-moz-animation-delay:12s;
-ms-animation-delay: 12s;
animation-delay: 12s;
}
.sp-container h2.frame-6 {
font-size: 200px;
-webkit-animation-delay: 15s;
-moz-animation-delay: 15s;
-ms-animation-delay: 15s;
animation-delay: 15s;
}
.sp-container h2.frame-7 {
-webkit-animation: none;
-moz-animation: none;
-ms-animation: none;
animation: none;
color: transparent;
text-shadow: 0px 0px 1px #fff;
}
.sp-container h2.frame-7 span {
-webkit-animation: blurFadeIn 3s ease-in 18s backwards;
-moz-animation: blurFadeIn 1s ease-in 18s backwards;
-ms-animation: blurFadeIn 3s ease-in 18s backwards;
animation: blurFadeIn 3s ease-in 18s backwards;
color: transparent;
text-shadow: 0px 0px 1px #fff;
}
.sp-container h2.frame-7 span:nth-child(2) {
-webkit-animation-delay: 21s;
-moz-animation-delay: 21s;
-ms-animation-delay: 21s;
animation-delay: 21s;
}
.sp-container h2.frame-7 span:nth-child(3) {
-webkit-animation-delay: 24s;
-moz-animation-delay: 24s;
-ms-animation-delay: 24s;
animation-delay: 24s;
}
.sp-globe {
position: absolute;
width: 282px;
height: 273px;
left: 50%;
top: 50%;
margin: -137px 0 0 -141px;
/* background: transparent url(http://web-sonick.zz.mu/images/sl/globe.png) no-repeat top left;*/
-webkit-animation: fadeInBack 3.6s linear 14s backwards;
-moz-animation: fadeInBack 3.6s linear 14s backwards;
-ms-animation: fadeInBack 3.6s linear 14s backwards;
animation: fadeInBack 3.6s linear 14s backwards;
-ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=30)";
filter: alpha(opacity=30);
opacity: 0.3;
-webkit-transform: scale(5);
-moz-transform: scale(5);
-o-transform: scale(5);
-ms-transform: scale(5);
transform: scale(5);
}
.sp-circle-link {
position: absolute;
left: 50%;
bottom: 100px;
margin-left: -50px;
text-align: center;
line-height: 100px;
width: 100px;
height: 100px;
background: #fff;
color: #3f1616;
font-size: 25px;
-webkit-border-radius: 50%;
-moz-border-radius: 50%;
border-radius: 50%;
-webkit-animation: fadeInRotate 1s linear 16s backwards;
-moz-animation: fadeInRotate 1s linear 16s backwards;
-ms-animation: fadeInRotate 1s linear 16s backwards;
animation: fadeInRotate 1s linear 16s backwards;
-webkit-transform: scale(1) rotate(0deg);
-moz-transform: scale(1) rotate(0deg);
-o-transform: scale(1) rotate(0deg);
-ms-transform: scale(1) rotate(0deg);
transform: scale(1) rotate(0deg);
}
.sp-circle-link:hover {
background: #85373b;
color: #fff;
}
/**/
@-webkit-keyframes blurFadeInOut {
0% {
opacity: 0;
text-shadow: 0px 0px 40px #fff;
-webkit-transform: scale(1.3);
}
20%, 75% {
opacity: 1;
text-shadow: 0px 0px 1px #fff;
-webkit-transform: scale(1);
}
100% {
opacity: 0;
text-shadow: 0px 0px 50px #fff;
-webkit-transform: scale(0);
}
}
@-webkit-keyframes blurFadeIn {
0% {
opacity: 0;
text-shadow: 0px 0px 40px #fff;
-webkit-transform: scale(1.3);
}
50% {
opacity: 0.5;
text-shadow: 0px 0px 10px #fff;
-webkit-transform: scale(1.1);
}
100% {
opacity: 1;
text-shadow: 0px 0px 1px #fff;
-webkit-transform: scale(1);
}
}
@-webkit-keyframes fadeInBack {
0% {
opacity: 0;
-webkit-transform: scale(0);
}
50% {
opacity: 0.4;
-webkit-transform: scale(2);
}
100% {
opacity: 0.2;
-webkit-transform: scale(5);
}
}
@-webkit-keyframes fadeInRotate {
0% {
opacity: 0;
-webkit-transform: scale(0) rotate(360deg);
}
100% {
opacity: 1;
-webkit-transform: scale(1) rotate(0deg);
}
}
/**/
@-moz-keyframes blurFadeInOut {
0% {
opacity: 0;
text-shadow: 0px 0px 40px #fff;
-moz-transform: scale(1.3);
}
20%, 75% {
opacity: 1;
text-shadow: 0px 0px 1px #fff;
-moz-transform: scale(1);
}
100% {
opacity: 0;
text-shadow: 0px 0px 50px #fff;
-moz-transform: scale(0);
}
}
@-moz-keyframes blurFadeIn {
0% {
opacity: 0;
text-shadow: 0px 0px 40px #fff;
-moz-transform: scale(1.3);
}
100% {
opacity: 1;
text-shadow: 0px 0px 1px #fff;
-moz-transform: scale(1);
}
}
@-moz-keyframes fadeInBack {
0% {
opacity: 0;
-moz-transform: scale(0);
}
50% {
opacity: 0.4;
-moz-transform: scale(2);
}
100% {
opacity: 0.2;
-moz-transform: scale(5);
}
}
@-moz-keyframes fadeInRotate {
0% {
opacity: 0;
-moz-transform: scale(0) rotate(360deg);
}
100% {
opacity: 1;
-moz-transform: scale(1) rotate(0deg);
}
}
/**/
@keyframes blurFadeInOut {
0% {
opacity: 0;
text-shadow: 0px 0px 40px #fff;
transform: scale(1.3);
}
20%, 75% {
opacity: 1;
text-shadow: 0px 0px 1px #fff;
transform: scale(1);
}
100% {
opacity: 0;
text-shadow: 0px 0px 50px #fff;
transform: scale(0);
}
}
@keyframes blurFadeIn {
0% {
opacity: 0;
text-shadow: 0px 0px 40px #fff;
transform: scale(1.3);
}
50% {
opacity: 0.5;
text-shadow: 0px 0px 10px #fff;
transform: scale(1.1);
}
100% {
opacity: 1;
text-shadow: 0px 0px 1px #fff;
transform: scale(1);
}
}
@keyframes fadeInBack {
0% {
opacity: 0;
transform: scale(0);
}
50% {
opacity: 0.4;
transform: scale(2);
}
100% {
opacity: 0.2;
transform: scale(5);
}
}
@keyframes fadeInRotate {
0% {
opacity: 0;
transform: scale(0) rotate(360deg);
}
100% {
opacity: 1;
transform: scale(1) rotate(0deg);
}
}

参考refreshid,$("refresh")中缺少#。更改应该是

$("#refresh").load(window.location.href + " refresh");

请注意,我将间隔时间缩短为1秒,并放置了一个日志来显示差异

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script>
$(document).ready(function() {
setInterval(function() {
$("#refresh").load(window.location.href + " refresh", function() { console.log("loaded") });
}, 1000);
});
</script>
<div id="refresh" class="sp-container">
<div class="sp-content">
<div class="sp-globe"></div>
<h2 class="frame-1">1</h2>
<h2 class="frame-2">2</h2>
<h2 class="frame-3">3</h2>
<h2 class="frame-4">4</h2>
<h2 class="frame-5">5</h2>
<h2 class="frame-6">6</h2>
<h2 class="frame-7">
<span>a,</span>
<span>b,</span>
<span>c</span>
</h2>
</div>
</div>

可以在页面加载后将div的内容放入javascript变量中那么在你设定的区间函数中:document.getElementById('refresh').innerHTML = x;:

<head>
<script>
var x = document.getElementById('refresh').innerHTML;
setInterval(function() {
document.getElementById('refresh').innerHTML = x;
}, 30000);
</script>
</head>

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