使用 Jinja2 渲染字典或字符串

Question

我一直在尝试使用 python 字典呈现 html 模板。

实际上我为我的网页创建了一个站点地图并使用 {{%extends%}} 标签实现了它。
我想要达到的解决方案是为每个网站创建一个字典，可以通过 CherryPy 并用 Jinja 渲染它。过程如下：

我创建了一个包含所需变量的字典
将字典传递给一个额外的函数，该函数将字典附加到静态变量（站点地图）。

我尝试的第一个解决方案是将字典转换为字符串，return 字符串并呈现它。

import cherrypy
import os
from jinja2 import Environment, FileSystemLoader
BASE_PATH = os.path.dirname(os.path.abspath(__file__))+"\static"
print BASE_PATH
env = Environment(loader=FileSystemLoader(BASE_PATH))


class Main(object):
    def __init__(self):
        self.sites = {"main": "index",
                      "leroy": "leroy"}

def render_pages(self, template, dict):
    dictItemCount = len(dict)
    dictPosition = 1
    string=""
    for current in dict:
        if(dictPosition == dictItemCount):
            print 'last item in dictionary'
            string += str(current)+"="+"'"+str(dict[current])+"'"
            break
        dictPosition += 1
        string += str(current)+"="+"'"+str(dict[current])+"', "
    return template.render(>>>PROBLEM HERE<<<)

@cherrypy.expose
def leroy(self):
    tmpl = env.get_template('leroy.html')
    jahre = 24
    monate = jahre*12
    tage = monate*30
    stunden = tage*24
    minuten = stunden*60
    sekunden = minuten*60
    variables = {jahre: jahre,
                 monate: monate,
                 tage: tage,
                 stunden: stunden,
                 sekunden: sekunden}
    #tmpl.render(sites=self.sites, jahre=jahre, monate=monate, tage=tage, stunden=stunden, minuten=minuten, sekunden=sekunden)
    return Main.render_pages(self, tmpl, variables)

cherrypy.quickstart(Main(), '/', "conf/cherrypy.conf")

--------------------> 编辑 <--------------------

这是'leroy.html'模板：

    {% extends "base.html" %}
{% block title %}{% endblock %}
{% block head %}
    {{ super() }}
    <style type="text/css">
        .important { color: #336699; }
    </style>
{% endblock %}
{% block content %}
    <p class="important">
      Jahre: {{jahre}} <br  />
      Monate: {{monate}} <br  />
      Tage: {{tage}} <br  />
      Stunden: {{stunden}} <br  />
      Minuten: {{minuten}} <br  />
      Sekunden: {{ sekunden }}
    </p>
    <br  /><br  />
{% endblock %}

'base.html':

{% block head %}
<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>{% block title %}{% endblock %} - TEST </title>

    <!-- Bootstrap -->
    <link href="/static/css/bootstrap.css" rel="stylesheet">

    <!-- HTML5 shim and Respond.js for IE8 support of HTML5 elements and media queries -->
    <!-- WARNING: Respond.js doesn't work if you view the page via file:// -->
    <!--[if lt IE 9]>
      <script src="https://oss.maxcdn.com/html5shiv/3.7.2/html5shiv.min.js"></script>
      <script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>
    <![endif]-->

  </head>
{% endblock %}
 {% block content %}
  <body>
 {% endblock %}

 {% block footer %}
      <br  /><br  />Sitemap:
      <ul id="sitemap">
         {% for site in sites %}
            <li><a href="/{{sites[site]}}">{{site}}</a></li>
         {% endfor %}
      </ul>
    <!-- jQuery (necessary for Bootstrap's JavaScript plugins) -->
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js"></script>
    <!-- Include all compiled plugins (below), or include individual files as needed -->
    <script src="/static/js/bootstrap.min.js"></script>

  </body>
</html>
{% endblock %}

Answer 1

@jwalker 的评论解决了我的问题：

You don't need to convert it to a string, just pass the dict to template.render()

使用 Jinja2 渲染字典或字符串

Render Dictionary or String with Jinja2

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