Flask的集中控制

时间:2022-03-29 11:44:22

想通过一个统一的机制,同时允许一些公共的逻辑

{% if args["NoUser"] %}
无用户!
{% else %}
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>结果查询</title>
<style type="text/css">
/** 用户名称 **/
.usr{
display: inline-block;
width:100px;
}
.time{
display: inline-block;
width:200px;
}
.cred{
display: inline-block;
width:40px;
}
.amo{
display: inline-block;
width:40px;
}
</style> </head> <body>
{{ args["strContent"] | safe }}
</body>
</html>
{% endif %}

但是感觉不好,于是采用JinJa2的模板继承机制,在base.html中写入一个统一的公共处理:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN">
<html lang="en">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
{% block pub %}
<script src="/static/jquery.js" type="text/javascript" charset="gb2312"></script>
<script type="text/javascript" charset="gb2312">
$(document).ready(function(){
alert("hi")
});
</script>
{% endblock %}
</head>
<body>
<div id="content">{% block content %}{% endblock %}</div>
<div id="footer">
{% block footer %}
&copy; Copyright 2008 by <a href="http://domain.invalid/">you</a>.
{% endblock %}
</div>
</body>

在实际模板中调用即可:

{% extends "base.html" %}
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>结果查询</title>
<% block pub %>
{{ super() }}
<% endblock %>
</head> <body>
{{ args["strContent"] | safe }}
</body>
</html>

这样,所有页面就能比较统一简洁地处理了。