如何使用 jinja2 模板打印“路线”列表元素。？

Question

我正在使用表单向带有名称的模板发送响应。如何使用 jinja2 模板打印“路线”列表元素。下面我给出了我的 index.py 页面代码和所需的输出。请建议我应该在 jinja 模板中使用的代码以获得 expexted 输出。

@app.route('/route',methods=['GET','POST'])
def index():
	form = Route()
	if request.method == 'POST':
		if form.validate_on_submit():
			tnum = request.form["T_No"]
			r = requests.get('https://api.railwayapi.com/v2/route/train/'+request.form['T_No']+'/apikey/<myapi>/').content
			return render_template('showRoute.html',form=r)
			return 'something wrong'
	return render_template('route.html',form=form)

 	
"route": [
        {
          "no": 1,
          "scharr": "SOURCE",
          "schdep": "06:15",
          "distance": 0,
          "halt": -1,
          "day": 1,
          "station": {
            "name": "KALKA",
            "code": "KLK",enter code here
            "lng": null,
            "lat": null
          }
        }

Answer 1

首先将json response转换为dict，并传递给模板

@app.route('/route', methods=['GET', 'POST'])
def index():
    form = Route()
    if request.method == 'POST':
        if form.validate_on_submit():
            tnum = request.form["T_No"]
            r = requests.get('https://api.railwayapi.com/v2/route/train/'+request.form['T_No']+'/apikey/<myapi>/')
            try:
                data = r.json()
            except:
                data = None
            return render_template('showRoute.html', data=data)
    return render_template('route.html', form=form)

然后使用模板中的数据

{% if data %}
<table style="width:100%" border="3">
    <tr>
        {% for key in data["route"][0].keys() %}
        <th>{{ key }}</th>
        {% endfor %}
    </tr>
    {% for route in data["route"] %}
    <tr>
        {% for key,value in route.items() %}
        {% if key == 'station' %}
        <td>{{ value['name'] }}</td>
        {% else %}
        <td>{{ value }}</td>
        {% endif %}
        {% endfor %}
        <br>
    </tr>
    {% endfor %}
</table>
{% else %}
<p>No Routes found!</p>
{% endif %}