我最近下载了 jaydebeapi 库，但我正在努力连接到远程 Oracle 数据库。我正在执行以下操作：
import jaydebeapi as j
j.connect('oracle.jdbc.driver.OracleDriver', ['jdbc:oracle:thin:@myhost:port:instance_name', "user", "pass"], "/path/to/ojdbc7.jar")
在这种情况下，我收到错误：
FileNotFoundError: [WinError 2] The system cannot find the file specified
尽管 jar 文件位于指定的文件夹中。
如果我省略 ojdbc7.jar 的路径，我会收到：
import jaydebeapi as j
j.connect('oracle.jdbc.driver.OracleDriver', ['jdbc:oracle:thin:@myhost:port:instance_name', "user", "pass"])
TypeError Traceback (most recent call last)
<ipython-input-164-db519a221754> in <module>()
----> 1 j.connect('oracle.jdbc.driver.OracleDriver', 'jdbc:oracle:thin:@cdwprdmi-scan.int-app.stockex.com:1522:mdwprdmi1',)
L:\pyzo2015a\lib\site-packages\jaydebeapi\__init__.py in connect(jclassname, driver_args, jars, libs)
61
62 gateway = java_gateway.JavaGateway.launch_gateway(
---> 63 port=25333, classpath=classpath, javaopts=javaopts, die_on_exit=True)
64
65 java_gateway.java_import(gateway.jvm, 'java.sql.DriverManager')
L:\pyzo2015a\lib\site-packages\py4j\java_gateway.py in launch_gateway(cls, port, jarpath, classpath, javaopts, die_on_exit, redirect_stdout, redirect_stderr, daemonize_redirect, java_path, create_new_process_group)
1977 daemonize_redirect=daemonize_redirect, java_path=java_path,
1978 create_new_process_group=create_new_process_group)
-> 1979 gateway = JavaGateway(gateway_parameters=GatewayParameters(port=_port))
1980 return gateway
1981
L:\pyzo2015a\lib\site-packages\py4j\java_gateway.py in launch_gateway(port, jarpath, classpath, javaopts, die_on_exit, redirect_stdout, redirect_stderr, daemonize_redirect, java_path, create_new_process_group)
282 # Launch the server in a subprocess.
283 classpath = os.pathsep.join((jarpath, classpath))
--> 284 command = [java_path, "-classpath", classpath] + javaopts + 285 ["py4j.GatewayServer"]
286 if die_on_exit:
TypeError: sequence item 1: expected str instance, NoneType found
我该如何解决这里的问题？谢谢，