使用laravel Framework for PHP调用.jar文件

Question

I have to run an .jar using an json file like argument and return another json, I use this methods:

exec("java -jar /grupa3/IP.jar /grupa3/input.json");

and another method that i try is using shell

shel_exec("java -jar /grupa3/IP.jar /grupa3/input.json");

but something is going wrong. please someone help me.

I solve this problem with run .jar file but now i have another problem i need to execute another jar with an argument and it's don't work. this is the code of running an jar without an argument and it's work:

<button id="execBTN" type="button"  onclick="executeJAR()" class="btn btn-primary btn-lg">Executa</button>

function in js:

var executeJAR = function () {

$.ajax({
    method: "GET",
    url: "http://localhost:81/Back-End/laravel/public/modul2",
    data: {execJAR: "true"}
}).done(function(){

});

}

and finally the php code:

<?php if (isset($_GET['execJAR'])){
        chdir('C:\wamp\www\Back-End\laravel\public\grupa2');
        exec('java -jar modul2.jar');
    } ?>

i use the same comand but with an argument:

exec('java -jar modul3.jar input.json');

and this comand don't work