Question

我无法解决这个问题：

当我在IDE（pycharm）中运行此代码或通过命令行运行此代码时，我得到204 HTTP响应而没有内容。当我在调试器中设置断点以查看发生的情况时，代码执行正常，r.content和r.text将填充请求的结果。在调试器中运行时，r.status_code的值也为200。

代码：

    r = requests.post(self.dispatchurl, verify=False, auth=HTTPBasicAuth(self.user, self.passwd))
    print 'first request to get sid: status {}'.format(r.status_code)
    json_data = json.loads(r.text)
    self.sid = json_data['sid']
    print 'the sid is: {}'.format(self.sid)
    self.getresulturl = '{}/services/search/jobs/{}/results{}'.format(self.url, self.sid, self.outputmode)
    x = requests.get(self.getresulturl, verify=False, auth=HTTPBasicAuth(self.user, self.passwd))
    print 'second request to get the data: status {}'.format(x.status_code)
    print 'content: {}'.format(x.text)

运行调试器时输出

：

first request to get sid: status 201
the sid is: sanitizedatahere
second request to get the data: status 200
content: {"preview":false...} 

Process finished with exit code 0

当我在没有调试器的情况下正常执行代码时，我会在第二个响应中得到204。

输出：

first request to get sid: status 201
the sid is: sanitizedatahere
second request to get the data: status 204
content: 

Process finished with exit code 0

我猜这与调试器有关，这会减慢请求并允许服务器响应数据？这似乎是竞争条件。我requests从未遇到此问题。

我做错了吗？我不知所措。提前感谢您的光临。

Answer 1

通过添加此循环解决：

    while r.status_code == 204:
        time.sleep(1)
        r = requests.get(self.resulturl, verify=False, auth=HTTPBasicAuth(self.user, self.passwd))

我怀疑Rest API需要更长时间来收集结果，因此204。运行调试器时，它会使进程运行得足够长，以至于API能够完成初始请求，从而得到200。

Answer 2

HTTP 204 No Content成功状态响应代码表示请求已成功，但是客户端不需要离开当前页面。默认情况下，204响应是可缓存的。进行以下设置可以解决该问题。

r = requests.get(splunk_end, headers=headers, verify=False)
while r.status_code == 204:
time.sleep(1)
r = requests.get(splunk_end, headers=headers, verify=False)

204响应转换为200。请检查以下日志。

https://localhost:8089/services/search/jobs/4D44-A45E-7BDB8F0BE473/results?output_mode=json
/usr/lib/python2.7/site-packages/botocore/vendored/requests/packages/urllib3/connectionpool.py:768: InsecureRequestWarning: Unverified HTTPS request is being made. Adding certificate verification is strongly advised. See: https://urllib3.readthedocs.org/en/latest/security.html
  InsecureRequestWarning)
/usr/lib/python2.7/site-packages/botocore/vendored/requests/packages/urllib3/connectionpool.py:768: InsecureRequestWarning: Unverified HTTPS request is being made. Adding certificate verification is strongly advised. See: https://urllib3.readthedocs.org/en/latest/security.html
  InsecureRequestWarning)
<Response [204]>
/usr/lib/python2.7/site-packages/botocore/vendored/requests/packages/urllib3/connectionpool.py:768: InsecureRequestWarning: Unverified HTTPS request is being made. Adding certificate verification is strongly advised. See: https://urllib3.readthedocs.org/en/latest/security.html
  InsecureRequestWarning)
<Response [200]>

谢谢

Answer 3

在这种情况下，在生成SID之后，如果状态响应为200但dispatchState不是DONE，则直接尝试获取结果。因此，当检查结果响应时，它的值为204。

我们可以通过过滤来继续检查作业的状态（“ DONE ”）。因此，一旦dispatchState显示DONE，请检查结果，然后返回响应代码会直接给200。

python请求GET返回HTTP 204

3 个答案: