从jar的主类运行第二个代码（jar）

Question

What I need is to run a jar file which is inside another jar file from my java code. I have this turnOffClient.jar file which I put in my ChatSystemClient.jar file and what I want to do is execute(start,run) turnOffClient.jar file from xClient.jar main-class code. I have tried:

Runtime.getRuntime().exec(this.getClass().getResource("/jars/TurnOffClient.jar").toString());

Also:

TurnOffClient.main(args);

It seems to work but when I close the first java application the second one closes too,which I don't want. My directories: https://imagizer.imageshack.us/v2/253x254q90/856/ztuz.png

Answer 1

this is a bad programming practice, instead create a new class that calls both your programs.

Example:

Program a;
Program b;

    a.run();
    while(a.isAlive()){
       if( /*we need to run program b*/){
         b.run();
         break;
       }

    }

Answer 2

Are these graphical applications? You could make application A (the one that opens application B ) not-truly-close when "closed", but continue to work in the background until application B is actually closed.

When B is launched, the JVM is just instantiating a special class from B (call it BMain ) and calling its public void main(String[] args) method. There is no reason you cannot call that method directly from your own code (instead of via getRuntime().exec() ):

BMain.main("my arguments here");

If your A process does not immediately end when its window is closed (hunt down and eliminate any JFrame.EXIT_ON_CLOSE instances in A , assuming you are using Swing), and it calls B 's main as above, B will run normally even when A is "closed".