Question

尝试通过ssh连接PostgreSQL，但出了点问题。有人可以帮忙吗？

from sshtunnel import SSHTunnelForwarder
import psycopg2

with SSHTunnelForwarder(
   "hostname",
   ssh_username="username",
   ssh_password="password",
   remote_bind_address=("127.0.0.1", 5432)) as server:

   try:
       conn = psycopg2.connect(host = "127.0.0.1", dbname="db_name",   user="db_user", password="db_password")
       cursor = conn.cursor()
       cursor.execute("""SELECT * from table""")
       rows = cursor.fetchall()
       print(rows)
   except Exception as e:
       print("Uh oh, can't connect. Invalid dbname, user or password?")
       print(e)

运行代码时 - 出错：

/usr/local/lib/python3.6/site-packages/psycopg2/ init .py：144：UserWarning：psycopg2 wheel包将从2.8版重命名;为了继续从二进制安装，请使用“pip install psycopg2-binary”代替。有关详细信息，请参阅：http://initd.org/psycopg/docs/install.html#binary-install-from-pypi。""") Uh oh, can't connect. Invalid dbname, user or password? could not connect to server: Connection refused Is the server running on host 127.0.0.1 and accepting **TCP/IP** connections on port 5432`？

多次检查数据库名称，用户和密码，但它现在正在运行。通过ssh手动连接到db工作正常，但我需要在python中对分析师数据进行操作。

通过SSH连接到PostgreSQL和python3

0 个答案: