Run Jython code from java class

Question

I am working on executable jar file that will run jython file to get some result. I tried calling jython file through this technique.

Run .bat file from java class and that .bat file will call Jython file.

Runtime rt = Runtime.getRuntime();
Process process = rt.exec(new String[] { "cmd.exe", "/c", "D:\\calljython.bat " + parameters + "" });

After jython file runs I read output through InputStream and get results. This technique works file when run from eclipse but fails when executable jar is created and run.

Another thing I use is PythonInterpreter but also face problems in this case.

What I want to do is:

Run Jython code from java along with parameters to be used in Jython file and get result.

Answer 1

Try debugging code and make sure that bat file or jython are being called and returning results. bat file should places along-with jar file you are executing (same hierarchy).

Runtime rt = Runtime.getRuntime();
Process process = rt.exec(new String[] { "cmd.exe", "/c", "calljython.bat " + parameters + "" });