Execute Java module after python script execution?

Question

i divided my app development into three modules which needs to be done in 2 languages(Python and java) I have developed one script in python for downloading attachments from a confluence page, But unfortunately i had to develop the other module in JAVA. I need to call the java instance after the python script completed its execution. Is it possible ?.

It's not really clear what your program is, but one option is two call the java program from Python with `subprocess`. — user202729, Jan 31 '21 at 07:10
Yeah the program i am developing with java is using MPXJ dependency , and i tried with subprocess but the dependency is not loading — Naveen, Jan 31 '21 at 07:18
Is it possible to have parameter from python to java if i use bash script? — Naveen, Jan 31 '21 at 13:40

artunc · Answer 1 · 2021-02-08T12:52:45.763

If you use Spring with Java you can use @PostConstruct annotation where you run your python script. The annotated method called after the initialization of your component. As an example:

import javax.annotation.PostConstruct;

import javax.annotation.PreDestroy;

import org.springframework.stereotype.Component;

@Component
public class MyAmazingComponent {


    @PostConstruct
    private void callScript() {
        Process process;
        try{
            process = Runtime.getRuntime().exec(new String[]{"path/script_python.py","arg1","arg2"});
        
        }catch(Exception e) {
            System.out.println("Exception " + e.toString());
        }

     }
    
    public void doSomething(){...}

}

You need below dependencies for above code (if you use maven of course and versions are not must, you can change them):

<dependency>
    <groupId>javax.annotation</groupId>
    <artifactId>javax.annotation-api</artifactId>
    <version>1.3.2</version>
</dependency>

<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-context</artifactId>
    <version>5.0.6.RELEASE</version>
</dependency>

Execute Java module after python script execution?

1 Answers1