【发布时间】:2017-09-04 10:32:09
【问题描述】:
我尝试通过 followimg 代码使用 python 连接 postgres。但是我无法连接它,我收到了一些错误。
import psycopg2
import sys
def main():
#Define our connection string
conn_string = "host='11.20.89.233' dbname='postgres' user='good_user' password='secret'"
# print the connection string we will use to connect
print "Connecting to database\n ->%s" % (conn_string)
# get a connection, if a connect cannot be made an exception will be raised here
conn = psycopg2.connect(conn_string)
# conn.cursor will return a cursor object, you can use this cursor to perform queries
cursor = conn.cursor()
print "Connected!\n"
if __name__ == "__main__":
main()
我收到以下错误。
grtmgr@BLR1000005591:~/mppcases> python testcon.py
Connecting to database
->host='11.20.89.233' dbname='good_user' user='secret'
password='mpp_tool'
Traceback (most recent call last):
File "testcon.py", line 19, in <module>
main()
File "testcon.py", line 12, in main
conn = psycopg2.connect(conn_string)
File "/usr/lib64/python2.6/site-packages/psycopg2/__init__.py", line 179,
in connect
connection_factory=connection_factory, async=async)
psycopg2.OperationalError: could not connect to server: Connection refused
Is the server running on host "11.20.89.233" and accepting
TCP/IP connections on port 16100?
【问题讨论】:
-
您确定您的 postgres 正在侦听端口
16100?这不是标准的。 -
验证 IP、端口和凭据是否正确
-
验证位置。 IP 和凭据正确。端口我不知道在哪里验证。
-
尝试使用标准客户端(如 psql 或 pgAdmin)与他们连接
-
谢谢你们的帮助。
标签: python database postgresql port