jinja2模板

最新推荐文章于 2025-05-24 15:49:55 发布

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from werkzeug.contrib.cache import SimpleCache
from flask import Flask, request, render_template,redirect,abort, url_for

CACHE_TIME = 300
cache = SimpleCache()
cache.timeout = CACHE_TIME

app = Flask(__name__)

@app.before_request
def return_cached():
    if not request.values:
        response = cache.get(request.path)
        if response:
            print("Got the page from cache!")
            return response

    print("Will load the page!")

@app.after_request
def cache_response(response):
    print("aaaaaaaaaaaaaaaaaaaaaa")
    if not request.values:
        cache.set(request.path, response, CACHE_TIME)
    return response

@app.teardown_request
def teardown_request(response):
    print('llllllllllllllllllllllll')
    return "llllllllllllllllllllll"  

# @app.route('/')
@app.route('/get_index')
def index():
    return render_template('jinja2.html', a_variable="Developer", navigation=["http://www.163.com", "www.baidu.com"])


if __name__ == '__main__':

    app.run(port=8000)

jinja2.html必须在templates文件夹下，例子如下：

!<!DOCTYPE html>
<html>
<head>
	<title>jinja2_test</title>
</head>
<body>
	<ul id="navigation">
		{% for item in navigation %} #表达式
			<li href='{{ item }}'>{{ item }}</li> #输出变量
		{% endfor %}
	</ul>

	<h1>HelloWorld</h1>
	{{a_variable}}#输出变量
        {# aaaa #}#模板注释，加载自动删除
</body>
</html>