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request请求及response响应
阅读量:754 次
发布时间:2019-03-23

本文共 552 字,大约阅读时间需要 1 分钟。

  • URL路径参数

    Django使用正则表达式从URL中提取参数,使其直接传递给视图函数。例如,定义路由为^weather/([a-z]+)/(\d{4})/$,请求/weather/北京/2018会将北京2018传递为cityyear参数。

  • 查询字符串

    查询字符串为?key1=value1&key2=value2,Django的request.GET对象获取其所有参数,由\request.GET.get('键')返回最后值或getlist()返回所有值。

  • 请求体数据

    请求体可能是表单数据、JSON或XML。使用request.POST获取表单数据,而非表单类型时,手动解析request.body(Bytes类型),需自行处理格式转换。

  • 请求头

    通过request.META获取元数据,包括HTTP_HOSTREMOTE_ADDR等。信息丰富,适合日志和调试。

  • 响应处理

    使用HttpResponse构造响应,设置内容和状态码。JsonResponse用于返回JSON数据,自动设置Content-Type: application/json。重定向使用redirect函数。

  • 通过理解Django的HttpRequest对象及其属性,可以灵活处理不同请求类型和数据格式,构建高效的Web应用。

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