案例 – 新闻列表
实现步骤
获取新闻数据
定义 template 模板
编译模板
定义时间过滤器
定义补零函数
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8"/>
<meta name="viewport" content="width=device-width, initial-scale=1.0"/>
<meta http-equiv="X-UA-Compatible" content="ie=edge"/>
<title>Document</title>
<link rel="stylesheet" href="./assets/news.css"/>
<script src="./lib/jquery.js"></script>
<script src="./lib/template-web.js"></script>
<script src="./js/news.js"></script>
</head>
<body>
<div id="news-list"></div>
<script type="text/html" id="tpl-news">
{{each data}}
<div class="news-item">
<img class="thumb" src="{{'http://www.liulongbin.top:3006' + $value.img}}" alt=""/>
<div class="right-box">
<h1 class="title">{{$value.title}}</h1>
<div class="tags">
{{each $value.tags}}
<span>{{$value}}</span>
{{/each}}
</div>
<div class="footer">
<div>
<span>{{$value.source}}</span>
<span>{{$value.time | dateFormat}}</span>
</div>
<span>评论数:{{$value.cmtcount}}</span>
</div>
</div>
</div>
{{/each}}
</script>
</body>
</html>
$(function () {
function padZero(n) {
if (n < 10) {
return '0' + n
} else {
return n
}
}
template.defaults.imports.dateFormat = function (dtStr) {
var dt = new Date(dtStr)
var y = dt.getFullYear()
var m = padZero(dt.getMonth() + 1)
var d = padZero(dt.getDate())
var hh = padZero(dt.getHours())
var mm = padZero(dt.getMinutes())
var ss = padZero(dt.getSeconds())
return y + '-' + m + '-' + d + ' ' + hh + ':' + mm + ':' + ss
}
function getNewsList() {
$.get('http://www.liulongbin.top:3006/api/news', function (res) {
if (res.status !== 200) {
return alert('获取新闻列表数据失败!')
}
for (var i = 0; i < res.data.length; i++) {
res.data[i].tags = res.data[i].tags.split(',')
}
console.log(res)
var htmlStr = template('tpl-news', res)
$('#news-list').html(htmlStr)
})
}
getNewsList()
})
模板引擎的实现原理