我试图捕获由show()函数生成的字符串表示，如这里所建议的，但似乎showString方法不再公开。
logger.info('n{}'.format(raw_data._jdf.showString(20, False, False)))
返回以下错误跟踪
Traceback (most recent call last):
File "xxxxxxxx/SparkTest/main.py", line 63, in <module>
logger.info('n{}n'.format(raw_data._jdf.showString(20, False, False)))
File "xxxxxxxx/envs/SparkTest/lib/python3.8/site-packages/py4j/java_gateway.py", line 1304, in __call__
return_value = get_return_value(
File "xxxxxxxx/envs/SparkTest/lib/python3.8/site-packages/pyspark/sql/utils.py", line 128, in deco
return f(*a, **kw)
File "xxxxxxxx/envs/SparkTest/lib/python3.8/site-packages/py4j/protocol.py", line 330, in get_return_value
raise Py4JError(
py4j.protocol.Py4JError: An error occurred while calling o45.showString. Trace:
py4j.Py4JException: Method showString([class java.lang.Integer, class java.lang.Boolean, class java.lang.Boolean]) does not exist
at py4j.reflection.ReflectionEngine.getMethod(ReflectionEngine.java:318)
at py4j.reflection.ReflectionEngine.getMethod(ReflectionEngine.java:326)
at py4j.Gateway.invoke(Gateway.java:274)
at py4j.commands.AbstractCommand.invokeMethod(AbstractCommand.java:132)
at py4j.commands.CallCommand.execute(CallCommand.java:79)
at py4j.GatewayConnection.run(GatewayConnection.java:238)
at java.base/java.lang.Thread.run(Thread.java:832)
是否有其他替代方法?
方法showString(Integer, Boolean, Boolean)不存在。如果您查看showString源代码，它将Integer作为第二个参数，但您传递的是boolean。
您想要设置truncate=False，那么只需在第二个参数中传递0:
logger.info('n{}'.format(raw_data._jdf.showString(20, 0, False)))