在py4j中，使用您各自的JDBC uri:

In py4j, with your respective JDBC uri:

from py4j.JavaGateway import java_gateway

# Open JVM interface with the JDBC Jar
jdbc_jar_path = '/path/to/jdbc_driver.jar'
gateway = java_gateway(classpath=jdbc_jar_path) 

# Load the JDBC Jar
jdbc_class = "com.vendor.VendorJDBC"
gateway.jvm.class.forName(jdbc_class)

# Initiate connection
jdbc_uri = "jdbc://vendor:192.168.x.y:zzzz;..."
con =  gateway.jvm.DriverManager.getConnection(jdbc_uri)

# Run a query
sql = "select this from that"
stmt = con.createStatement(sql)
rs = stmt.executeQuery()
while rs.next():
    rs.getInt(1)
    rs.getFloat(2)
    .
    .
rs.close()
stmt.close()