resources中添加moment.js文件。
然后引入moment.js文件：
<script src="/js/moment.js"></script>
借阅结束时间选完后changeDate事件：
$("input[name='endTime']").datetimepicker({
format: "yyyy-mm-dd hh:ii",
autoclose: true
}).on('changeDate',function(ev){
var time=$("input[name='endTime']").val();
const endTime = moment(time);
const startTime = moment();
const minutesDifference = endTime.diff(startTime, 'minutes');
const money=minutesDifference/600.0;
$('#money').text(money);
});
图书借阅价格是1分钟1/60角。
整个代码add.html图书借阅界面：
<!DOCTYPE html>
<html lang="zh" xmlns:th="http://www.thymeleaf.org" >
<head>
<th:block th:include="include :: header('新增bookorder')" />
<th:block th:include="include :: datetimepicker-css" />
</head>
<body class="white-bg">
<div class="wrapper wrapper-content animated fadeInRight ibox-content">
<form class="form-horizontal m" id="form-order-add">
<div class="form-group">
<label class="col-sm-3 control-label">book_id：</label>
<div class="col-sm-8">
<input name="bookId" class="form-control" type="text" th:value="${bookId}">
</div>
</div>
<div class="form-group">
<label class="col-sm-3 control-label">借阅结束时间：</label>
<div class="col-sm-8">
<div class="input-group date">
<input name="endTime" class="form-control" placeholder="yyyy-MM-dd HH:mm:ss" type="text">
<span class="input-group-addon"><i class="fa fa-calendar"></i></span>
</div>
</div>
</div>
<div class="form-group">
<p>您需支付 <span id="money">0</span>元</p>
</div>
</form>
</div>
<th:block th:include="include :: footer" />
<th:block th:include="include :: datetimepicker-js" />
<script src="/js/moment.js"></script>
<script th:inline="javascript">
var prefix = ctx + "system/order"
$("#form-order-add").validate({
focusCleanup: true
});
function submitHandler() {
if ($.validate.form()) {
$.operate.save(prefix + "/add", $('#form-order-add').serialize());
}
}
$("input[name='startTime']").datetimepicker({
format: "yyyy-mm-dd",
minView: "month",
autoclose: true
});
$("input[name='endTime']").datetimepicker({
format: "yyyy-mm-dd hh:ii",
autoclose: true
}).on('changeDate',function(ev){
var time=$("input[name='endTime']").val();
const endTime = moment(time);
const startTime = moment();
const minutesDifference = endTime.diff(startTime, 'minutes');
const money=minutesDifference/600.0;
$('#money').text(money);
});
</script>
</body>
</html>
