pyspark java网关问题同时获取sparkcontext

Question

代码如下：

from pyspark import SparkContext
sc = SparkContext.getOrCreate();

当获取sparkcontext时，出现此错误：

  File "C:\Users\jv219\AppData\Local\Continuum\Anaconda2\lib\site-packages\pyspark\java_gateway.py", line 93, in launch_gateway
    raise Exception("Java gateway process exited before sending its port number")

Exception: Java gateway process exited before sending its port number

我；是pyspark的新手，请看一看，非常感谢。