利用 js 生成一个界面友好的等待效果，使用 jquery 插件 spin.js，文章末尾有下载地址，下图是生成的效果截图，代码调用很简单。
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<style type="text/css">
body {
font-family: Helvetica, Arial, sans-serif; font-size: 12px;
}
#preview1 {
float: left; position: relative; background-color: #000; color: black; width: 220px; height: 220px; margin: 0 5px; border-radius: 20px;
}
#preview2 {
float: left; position: relative; background-color: #000; color: black; width: 220px; height: 220px; margin: 0 5px; border-radius: 20px;
}
</style>
<script src="jquery.min.js"></script>
<script src="spin.js"></script>
<script src="jquery.spin.js"></script>
<script type="text/javascript">
// 对样式 #preview1 进行配置
var opts1 =
{
lines : 12, // The number of lines to draw
length : 0, // The length of each line
width : 11, // The line thickness
radius : 40, // The radius of the inner circle
scale : 1.0, // Scales overall size of the spinner
corners : 0, // Roundness (0..1)
color : '#efefef', // #rgb or #rrggbb
opacity : 1 / 4, // Opacity of the lines
rotate : 0, // Rotation offset
direction : 1, // 1: clockwise, -1: counterclockwise
speed : 1, // Rounds per second
trail : 100, // Afterglow percentage
fps : 20, // Frames per second when using setTimeout()
zIndex : 2e9, // Use a high z-index by default
className : 'spinner', // CSS class to assign to the element
top : '50%', // center vertically
left : '50%', // center horizontally
shadow : false, // Whether to render a shadow
hwaccel : false, // Whether to use hardware acceleration (might be buggy)
position : 'absolute' // Element positioning
};
// 对样式 #preview2 进行配置
var opts2 =
{
lines : 18, // The number of lines to draw
length : 0, // The length of each line
width : 11, // The line thickness
radius : 40, // The radius of the inner circle
scale : 1.0, // Scales overall size of the spinner
corners : 0, // Roundness (0..1)
color : 'red', // #rgb or #rrggbb
opacity : 1 / 4, // Opacity of the lines
rotate : 0, // Rotation offset
direction : 1, // 1: clockwise, -1: counterclockwise
speed : 1, // Rounds per second
trail : 100, // Afterglow percentage
fps : 20, // Frames per second when using setTimeout()
zIndex : 2e9, // Use a high z-index by default
className : 'spinner', // CSS class to assign to the element
top : '50%', // center vertically
left : '50%', // center horizontally
shadow : false, // Whether to render a shadow
hwaccel : false, // Whether to use hardware acceleration (might be buggy)
position : 'absolute' // Element positioning
};
</script>
<title>Insert title here</title>
</head>
<body>
<div id="preview1" class="preview"></div>
<div id="preview2" class="preview"></div>
</body>
<script type="text/javascript">
$('#preview1').spin(opts1);
$('#preview2').spin(opts2);
</script>
</html>
插件下载地址
https://github.com/fgnass/spin.js/
以上所述是小编给大家介绍的利用 spin.js 生成等待效果(js 等待效果)，希望对大家有所帮助，如果大家有任何疑问欢迎给我留言，小编会及时回复大家的！
