render_to_response()改进HttPResponse
2017-09-29 09:39
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from django.template.loader import get_template from django.template import Context from django.http import HttpResponse import datetime def current_datetime_template(request): now = datetime.datetime.now() t = get_template('current_datetime.html') html = t.render(Context({'current_date': now})) return HttpResponse(html)
前面我们使用 get_template() 方法代替繁杂的用代码来处理模板及其路径的工作。
import 这么多东西,还是比较麻烦。我们这里试下把它弄简洁一些,毕竟 Python 是门高效开发的语言,可不能这么复杂。
render_to_response()
from django.shortcuts import render_to_response import datetime def current_datetime_template(request): now = datetime.datetime.now() return render_to_response('current_datetime.html', {'current_date': now})
模板加载、上下文创建、模板解析和 HttpResponse 创建工作均在对 render_to_response() 的调用中完成了, 由于 render_to_response() 返回 HttpResponse 对象,因此我们仅需在视图中 return 该值。
render_to_response() 的第一个参数必须是要使用的模板名称。 如果要给定第二个参数,那么该参数必须是为该模板创建 Context 时所使用的字典。 如果不提供第二个参数, render_to_response() 使用一个空字典。
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