Call java class from a jar file in python easily without another complicated program like Py4j [duplicate]

Question

I am trying to call java class from a jar file in python. I've see people talking about programs like Jython, Py4j, Jpype, etc, but I am hoping for an easier way other than spend lots of time to study a new program. I am new to programming. Thanks.

Briefly, here is what I want to accompolish. Say a jar file called 'Converter.jar'. It has a function 'parse' in a class 'Handler'. How can I call the jar file to realize something like Converter.Handler.parse('my file')?

I don't know enough about Java to offer concrete help, but stackoverflow.com/questions/476968/… looks highly relevant. — Mark Amery
– Mark Amery, Commented Dec 15, 2014 at 17:05
Python is not designed to interface with Java. You're going to have to use something specially designed for this. Jython runs under Java normally, and so should have a built in way of doing this. Alternatively, Py4j and JPype appear to be libraries designed to allow interface with Java from CPython. — jpmc26
– jpmc26, Commented Dec 15, 2014 at 17:15

nitishagar · Accepted Answer · 2014-12-15 17:20:34Z

0

You can use Jython for this specific purpose(much easier than you think), below is an example:

import sys
sys.path.append("<path_to_jar_file>")
import <package>

A link which is a relevant reference to topic in hand is - link.

edited Dec 15, 2014 at 17:20

answered Dec 15, 2014 at 17:13

nitishagar

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2 Comments

Jian Over a year ago

This example just registers the jar file to the sys path. Is CPython required for Jython?

Lorenzo Over a year ago

The link has died, an updated link would be nice

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