Question

使用urllib3時，我試圖將數據從python腳本發送到位於本地服務器（localhost8080）上的Java servlet。我收到以下錯誤：

Traceback (most recent call last): 
    File "utlTest4.py", line 8, in <module> 
    r = http.request('GET', url='http://localhost:8080/raspberryPi/GetValue') 
    File "/usr/lib/python2.7/dist-packages/urllib3/request.py", line 68, in reques                      t 
    **urlopen_kw) 
    File "/usr/lib/python2.7/dist-packages/urllib3/request.py", line 81, in reques                      t_encode_url 
    return self.urlopen(method, url, **urlopen_kw) 
    File "/usr/lib/python2.7/dist-packages/urllib3/poolmanager.py", line 153, in u                      rlopen 
    response = conn.urlopen(method, u.request_uri, **kw) 
    File "/usr/lib/python2.7/dist-packages/urllib3/connectionpool.py", line 579, i                      n urlopen 
    release_conn=release_conn, **response_kw) 
    File "/usr/lib/python2.7/dist-packages/urllib3/connectionpool.py", line 579, i                      n urlopen 
    release_conn=release_conn, **response_kw) 
    File "/usr/lib/python2.7/dist-packages/urllib3/connectionpool.py", line 579, i                      n urlopen 
    release_conn=release_conn, **response_kw) 
    File "/usr/lib/python2.7/dist-packages/urllib3/connectionpool.py", line 559, i                      n urlopen 
    _pool=self, _stacktrace=stacktrace) 
    File "/usr/lib/python2.7/dist-packages/urllib3/util/retry.py", line 265, in in                      crement 
    raise MaxRetryError(_pool, url, error) 
urllib3.exceptions.MaxRetryError: HTTPConnectionPool(host='localhost', port=8080                      ): Max retries exceeded with url: /raspberryPi/GetValue (Caused by ProtocolError                       
('Connection aborted.', error(111, 'Connection refused'))) 

我的代碼是：

import urllib3 import requests 

if name == "main": #quote_number = 1 

http = urllib3.PoolManager() 
r = http.request('GET',url='http://localhost:8080/raspberryPi/GetValue') 

if r.status != 200: 
raise Exception('ServerError', quote_number, r.status) 

print r 

Answer 1

我會建議使用python-請求庫：https://pypi.python.org/pypi/requests

這是簡單得多的urllib使用。