''' Created on 2018年12月19日 @author: User ''' import psycopg2 from DBUtils.PooledDB import PooledDB pool = None def getConnection(): global pool if pool is None: pool = PooledDB(psycopg2, 10,dbname="BiddingKG", host="192.168.2.101",user="postgres",password="postgres",port="5432") return pool.connection() if __name__=="__main__": conn = getConnection() cursor = conn.cursor() cursor.execute(" select 1") print(cursor.fetchall()[0][0])