我试图理解这个使用Py4j的代码。但是，每次运行代码时，我都会遇到相同的错误。我在我的Ubuntu 14.04中安装了py4j。 jar文件位于usr / share / py4j中。
代码是
from nltk.tokenize.punkt import PunktSentenceTokenizer, PunktParameters
from nltk.tokenize import wordpunct_tokenize , sent_tokenize
from py4j.java_gateway import JavaGateway
import nltk
from nltk.tree import Tree
import os.path
import parsers
LangPaths =os.path.realpath("/home/Downloads/Abstractive Summarizer/SumMe-master/Summarizer/langdetector/profiles/")
tltagger = nltk.data.load("taggers/english.pickle")
tlChunker = nltk.data.load("chunkers/maxent_ne_chunker/english_ace_binary.pickle")
enChunker = nltk.data.load("chunkers/maxent_ne_chunker/english_ace_multiclass.pickle")
punkt_param = PunktParameters() #creates an opening for tokenizer parameters.
punkt_param.abbrev_types = set(['gng','mr','mrs','dr','rep']) #abbreviations further accepted goes here
sentence_splitter = PunktSentenceTokenizer(punkt_param)
tokenized = ""
gateway = JavaGateway()
detector = gateway.entry_point
detector.init(LangPaths)
我得到的错误是
文件＆＃34; / home / shiju / Downloads / Abstractive Summarizer / SumMe-master / Summarizer / preprocessor.py＆＃34;，第29行，in detector.init（LangPaths）
File＆＃34; /usr/local/lib/python2.7/dist-packages/py4j/java_gateway.py"， 第811行，在__call_ answer =中 self.gateway_client.send_command（命令）`
File＆＃34; /usr/local/lib/python2.7/dist-packages/py4j/java_gateway.py"， 第624行，在send_command中 connection = self._get_connection（）
File＆＃34; /usr/local/lib/python2.7/dist-packages/py4j/java_gateway.py"， 第579行，在_get_connection中 connection = self._create_connection（）File＆＃34; /usr/local/lib/python2.7/dist-packages/py4j/java_gateway.py" ;, line 585，在_create_connection中 connection.start（）
File＆＃34; /usr/local/lib/python2.7/dist-packages/py4j/java_gateway.py"， 第697行，开始 引发Py4JNetworkError（msg，e）py4j.protocol.Py4JNetworkError：尝试连接Java服务器时发生错误
我认为Python无法与Java应用程序连接