当状态不是200时如何获得body

Question

我使用这样的东西来发送请求：

from tornado import httpclient
from tornado.httpclient import HTTPRequest
client = httpclient.HTTPClient()
request = HTTPRequest(url='http://google.com/', method="GET")
res = client.fetch(request)
print(res.body)

当HTTP状态为200时工作正常，但我想始终获取正文。如何处理？

Answer 1

当它返回非 200 HTTP 状态时会发生什么？它会引发异常吗？根据这些文档，这就是发生的事情。这是真的吗？在这种情况下，您要做的是：

from tornado import httpclient
from tornado.httpclient import HTTPRequest
    client = httpclient.HTTPClient()
    request = HTTPRequest(url='http://google.com/', method="GET")
    try:
        res = client.fetch(request)
        print(res.body)
    except HTTPError as err:
        res = err.response
        if res:
            print(res.body)