Question

在Django中，使用Beautiful urls更容易。非常感谢！但我写了一个纯PHP的网站，现在我想迁移到Python和Django，仍然希望保持我丑陋的网址活着。（丑陋＆gt; 404）

这是我的urls.py：

urlpatterns = [
        url(r'^\?user=(\d+)/$', user),
]

和我的views.py：

def user(request, offset):
        try:
                offset = int(offset)
        except ValueError:
                raise Http404()
        ret = 'hello user ' + str(offset)
        return HttpResponse(ret)

但是当我运行服务器时出现此错误（其他页面工作正常）：

Performing system checks...

Unhandled exception in thread started by <function check_errors.<locals>.wrapper at 0x7f76199b6048>
Traceback (most recent call last):
  File "/home/pouya/dj/helloworld/lib/python3.5/site-packages/django/core/urlresolvers.py", line 199, in regex
    compiled_regex = re.compile(regex, re.UNICODE)
  File "/home/pouya/dj/helloworld/lib/python3.5/re.py", line 224, in compile
    return _compile(pattern, flags)
  File "/home/pouya/dj/helloworld/lib/python3.5/re.py", line 293, in _compile
    p = sre_compile.compile(pattern, flags)
  File "/home/pouya/dj/helloworld/lib/python3.5/sre_compile.py", line 536, in compile
    p = sre_parse.parse(p, flags)
  File "/home/pouya/dj/helloworld/lib/python3.5/sre_parse.py", line 829, in parse
    p = _parse_sub(source, pattern, 0)
  File "/home/pouya/dj/helloworld/lib/python3.5/sre_parse.py", line 437, in _parse_sub
    itemsappend(_parse(source, state))
  File "/home/pouya/dj/helloworld/lib/python3.5/sre_parse.py", line 638, in _parse
    source.tell() - here + len(this))
sre_constants.error: nothing to repeat at position 1

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/pouya/dj/helloworld/lib/python3.5/site-packages/django/utils/autoreload.py", line 226, in wrapper
    fn(*args, **kwargs)
  File "/home/pouya/dj/helloworld/lib/python3.5/site-packages/django/core/management/commands/runserver.py", line 116, in inner_run
    self.check(display_num_errors=True)
  File "/home/pouya/dj/helloworld/lib/python3.5/site-packages/django/core/management/base.py", line 426, in check
    include_deployment_checks=include_deployment_checks,
  File "/home/pouya/dj/helloworld/lib/python3.5/site-packages/django/core/checks/registry.py", line 75, in run_checks
    new_errors = check(app_configs=app_configs)
  File "/home/pouya/dj/helloworld/lib/python3.5/site-packages/django/core/checks/urls.py", line 10, in check_url_config
    return check_resolver(resolver)
  File "/home/pouya/dj/helloworld/lib/python3.5/site-packages/django/core/checks/urls.py", line 27, in check_resolver
    warnings.extend(check_pattern_startswith_slash(pattern))
  File "/home/pouya/dj/helloworld/lib/python3.5/site-packages/django/core/checks/urls.py", line 63, in check_pattern_startswith_slash
    regex_pattern = pattern.regex.pattern
  File "/home/pouya/dj/helloworld/lib/python3.5/site-packages/django/core/urlresolvers.py", line 203, in regex
    (regex, six.text_type(e)))
django.core.exceptions.ImproperlyConfigured: "^?user=(\d+)/$" is not a valid regular expression: nothing to repeat at position 1

有人可以帮我解决这个问题吗？任何教程或网址都很受欢迎。

Answer 1

正如Avinash在评论中所说，?之后的任何内容都是GET参数，它不是URL的一部分。你的urlpattern应该是：

    url(r'^$', user),

您应该在视图中使用request.GET['user']获取参数。

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1 个答案: