看起来是jar的路径的问题，你需要看一下在windows上，jar的路径用URL表示应该是什么样的。另外也可以直接把jar包放到pyflink安装目录中的lib目录下。
> 在 2020年12月17日，下午3:04，肖越 <18242988...@163.com> 写道：
>
> 您好，这是完整的报错信息：
> Traceback (most recent call last):
>
> File
> "C:\projects\dataService-calculate-code-python\src\test\test_oracle_connector.py",
> line 24, in <module>
>
>
> "C:\projects\dataService-calculate-code-python\src\\test\\flink_connector-jdbc\\flink-connector-jdbc_2.11-1.12.0.jar")
>
> File
> "C:\Users\18242\AppData\Local\Programs\Python\Python37\lib\site-packages\pyflink\common\configuration.py",
> line 72, in set_string
>
> add_jars_to_context_class_loader(value.split(";"))
>
> File
> "C:\Users\18242\AppData\Local\Programs\Python\Python37\lib\site-packages\pyflink\util\utils.py",
> line 114, in add_jars_to_context_class_loader
>
> jar_urls = [gateway.jvm.java.net.URL(url).toString() for url in jar_urls]
>
> File
> "C:\Users\18242\AppData\Local\Programs\Python\Python37\lib\site-packages\pyflink\util\utils.py",
> line 114, in <listcomp>
>
> jar_urls = [gateway.jvm.java.net.URL(url).toString() for url in jar_urls]
>
> File
> "C:\Users\18242\AppData\Local\Programs\Python\Python37\lib\site-packages\py4j\java_gateway.py",
> line 1554, in __call__
>
> answer, self._gateway_client, None, self._fqn)
>
> File
> "C:\Users\18242\AppData\Local\Programs\Python\Python37\lib\site-packages\pyflink\util\exceptions.py",
> line 147, in deco
>
> return f(*a, **kw)
>
> File
> "C:\Users\18242\AppData\Local\Programs\Python\Python37\lib\site-packages\py4j\protocol.py",
> line 328, in get_return_value
>
> format(target_id, ".", name), value)
>
> py4j.protocol.Py4JJavaError: An error occurred while calling
> None.java.net.URL.
>
> : java.net.MalformedURLException: unknown protocol: c
>
> at java.net.URL.<init>(URL.java:617)
>
> at java.net.URL.<init>(URL.java:507)
>
> at java.net.URL.<init>(URL.java:456)
>
> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
>
> at
> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
>
> at
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
>
> at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
>
> at
> org.apache.flink.api.python.shaded.py4j.reflection.MethodInvoker.invoke(MethodInvoker.java:247)
>
> at
> org.apache.flink.api.python.shaded.py4j.reflection.ReflectionEngine.invoke(ReflectionEngine.java:357)
>
> at org.apache.flink.api.python.shaded.py4j.Gateway.invoke(Gateway.java:238)
>
> at
> org.apache.flink.api.python.shaded.py4j.commands.ConstructorCommand.invokeConstructor(ConstructorCommand.java:80)
>
> at
> org.apache.flink.api.python.shaded.py4j.commands.ConstructorCommand.execute(ConstructorCommand.java:69)
>
> at
> org.apache.flink.api.python.shaded.py4j.GatewayConnection.run(GatewayConnection.java:238)
>
> at java.lang.Thread.run(Thread.java:748)
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> 在 2020-12-17 14:57:36，"Dian Fu" <dian0511...@gmail.com> 写道：
>> 发一下完整的异常信息？
>>
>>> 在 2020年12月17日，上午11:53，肖越 <18242988...@163.com> 写道：
>>>
>>> 好的，非常感谢您的帮助，刚根据分享的连接，显示增加了jar包依赖，报错：py4j.protocol.Py4JJavaError: An error
>>> occurred while calling None.java.net.URL，应该就是没有对应的Oracle connector处理的原因吧？
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> 在 2020-12-17 10:44:56，"Dian Fu" <dian0511...@gmail.com> 写道：
>>>> 1）如Leonard Xu老师所说，目前JDBC connector还不支持oracle
>>>> 2）从报错看，你这还都没有走到那一步就报错了，可以检查一下这些：
>>>> a. JDBC connector的使用方式参考[1]，比如'connector' = 'jdbc'，而不是'connector.type' =
>>>> 'jdbc'，这个是老的使用方式
>>>> b. JDBC
>>>> connector的jar需要显式添加相关依赖，可以如何在PyFlink中添加jar依赖，可以看一下[2]。其中JDBC需要的的jar，可以参考[1]
>>>>
>>>> [1]
>>>> https://ci.apache.org/projects/flink/flink-docs-release-1.12/dev/table/connectors/jdbc.html
>>>>
>>>> <https://ci.apache.org/projects/flink/flink-docs-release-1.12/dev/table/connectors/jdbc.html>
>>>> [2]
>>>> https://ci.apache.org/projects/flink/flink-docs-release-1.12/dev/python/table-api-users-guide/python_table_api_connectors.html#download-connector-and-format-jars
>>>>
>>>>> 在 2020年12月17日，上午10:06，肖越 <18242988...@163.com> 写道：
>>>>>
>>>>> 谢谢您的帮助，所以没有办法通过定义connector的方式获取连接是么？ 有没有其他办法呢？
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> 在 2020-12-17 09:55:08，"Leonard Xu" <xbjt...@gmail.com> 写道：
>>>>>> 目前 JDBC connector 只支持 MySQL, Pg和Derby(一般测试用)这几种dialect， Oracle还不支持。
>>>>>>
>>>>>> 祝好，
>>>>>> Leonard
>>>>>>
>>>>>>> 在 2020年12月17日，09:47，肖越 <18242988...@163.com> 写道：
>>>>>>>
>>>>>>> pyflink小白，测试pyflink1.12功能，想通过定义connector从oracle数据库中获取数据
>>>>>>> 通过如下方式定义：
>>>>>>> env = StreamExecutionEnvironment.get_execution_environment()
>>>>>>> env.set_parallelism(1)
>>>>>>> env = StreamTableEnvironment \
>>>>>>> .create(env, environment_settings=EnvironmentSettings
>>>>>>> .new_instance()
>>>>>>> .use_blink_planner().build())
>>>>>>> source_ddl1 = """
>>>>>>> CREATE TABLE source_table (id BIGINT,pf_id VARCHAR,\
>>>>>>> tree_id VARCHAR,node_id VARCHAR,biz_date DATE,\
>>>>>>> ccy_type VARCHAR,cur_id_d VARCHAR,tldrate DOUBLE,\
>>>>>>> is_valid INT,time_mark TIMESTAMP) WITH (
>>>>>>> 'connector.type' = 'jdbc',
>>>>>>> 'connector.url' = 'jdbc:oracle:thin:@ip:dbnamel',
>>>>>>> 'connector.table' = 'ts_pf_ac_yldrate',
>>>>>>> 'connector.driver' = 'oracle.jdbc.driver.OracleDriver',
>>>>>>> 'connector.username' = 'xxx',
>>>>>>> 'connector.password' = 'xxx')
>>>>>>> """
>>>>>>> sql = "select pf_id,biz_date from source_table where
>>>>>>> biz_date='20160701' "
>>>>>>> env.sql_update(source_ddl1)
>>>>>>> table = env.sql_query(sql)
>>>>>>> env.execute("flink_test")
>>>>>>> 报错信息：
>>>>>>> raise java_exception
>>>>>>> pyflink.util.exceptions.TableException: findAndCreateTableSource failed.
>>>>>>> at
>>>>>>> org.apache.flink.table.factories.TableFactoryUtil.findAndCreateTableSource(TableFactoryUtil.java:49)
>>>>>>> at
>>>>>>> org.apache.flink.table.planner.plan.schema.LegacyCatalogSourceTable.findAndCreateLegacyTableSource(LegacyCatalogSourceTable.scala:193)
>>>>>>> at
>>>>>>> org.apache.flink.table.planner.plan.schema.LegacyCatalogSourceTable.toRel(LegacyCatalogSourceTable.scala:94)
>>>>>>> at
>>>>>>> org.apache.calcite.sql2rel.SqlToRelConverter.toRel(SqlToRelConverter.java:3585)
>>>>>>> at
>>>>>>> org.apache.calcite.sql2rel.SqlToRelConverter.convertIdentifier(SqlToRelConverter.java:2507)
>>>>>>> at
>>>>>>> org.apache.calcite.sql2rel.SqlToRelConverter.convertFrom(SqlToRelConverter.java:2144)
>>>>>>> at
>>>>>>> org.apache.calcite.sql2rel.SqlToRelConverter.convertFrom(SqlToRelConverter.java:2093)
>>>>>>> at
>>>>>>> org.apache.calcite.sql2rel.SqlToRelConverter.convertFrom(SqlToRelConverter.java:2050)
>>>>>>> at
>>>>>>> org.apache.calcite.sql2rel.SqlToRelConverter.convertSelectImpl(SqlToRelConverter.java:663)
>>>>>>> at
>>>>>>> org.apache.calcite.sql2rel.SqlToRelConverter.convertSelect(SqlToRelConverter.java:644)
>>>>>>> at
>>>>>>> org.apache.calcite.sql2rel.SqlToRelConverter.convertQueryRecursive(SqlToRelConverter.java:3438)
>>>>>>> at
>>>>>>> org.apache.calcite.sql2rel.SqlToRelConverter.convertQuery(SqlToRelConverter.java:570)
>>>>>>> at
>>>>>>> org.apache.flink.table.planner.calcite.FlinkPlannerImpl.org$apache$flink$table$planner$calcite$FlinkPlannerImpl$$rel(FlinkPlannerImpl.scala:165)
>>>>>>> at
>>>>>>> org.apache.flink.table.planner.calcite.FlinkPlannerImpl.rel(FlinkPlannerImpl.scala:157)
>>>>>>> at
>>>>>>> org.apache.flink.table.planner.operations.SqlToOperationConverter.toQueryOperation(SqlToOperationConverter.java:823)
>>>>>>> at
>>>>>>> org.apache.flink.table.planner.operations.SqlToOperationConverter.convertSqlQuery(SqlToOperationConverter.java:795)
>>>>>>> at
>>>>>>> org.apache.flink.table.planner.operations.SqlToOperationConverter.convert(SqlToOperationConverter.java:250)
>>>>>>> at
>>>>>>> org.apache.flink.table.planner.delegation.ParserImpl.parse(ParserImpl.java:78)
>>>>>>> at
>>>>>>> org.apache.flink.table.api.internal.TableEnvironmentImpl.sqlQuery(TableEnvironmentImpl.java:639)
>>>>>>> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>>>>>>> at
>>>>>>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>>>>>>> at
>>>>>>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>>>>>>> at java.lang.reflect.Method.invoke(Method.java:498)
>>>>>>> at
>>>>>>> org.apache.flink.api.python.shaded.py4j.reflection.MethodInvoker.invoke(MethodInvoker.java:244)
>>>>>>> at
>>>>>>> org.apache.flink.api.python.shaded.py4j.reflection.ReflectionEngine.invoke(ReflectionEngine.java:357)
>>>>>>> at
>>>>>>> org.apache.flink.api.python.shaded.py4j.Gateway.invoke(Gateway.java:282)
>>>>>>> at
>>>>>>> org.apache.flink.api.python.shaded.py4j.commands.AbstractCommand.invokeMethod(AbstractCommand.java:132)
>>>>>>> at
>>>>>>> org.apache.flink.api.python.shaded.py4j.commands.CallCommand.execute(CallCommand.java:79)
>>>>>>> at
>>>>>>> org.apache.flink.api.python.shaded.py4j.GatewayConnection.run(GatewayConnection.java:238)
>>>>>>> at java.lang.Thread.run(Thread.java:748)
>>>>
