Call an executable and pass parameters
I'm figuring out a mechanism to call an exe from Java and passing in specific parameters. How can I do?
Process process = new ProcessBuilder("C:\\PathToExe\\MyExe.exe").start();
InputStream is = process.getInputStream();
InputStreamReader isr = new InputStreamReader(is);
BufferedReader br = new BufferedReader(isr);
String line;
System.out.printf("Output of running %s is:", Arrays.toString(args));
while ((line = br.readLine()) != null) {
System.out.println(line);
}
The previous code works. But I'm not able to pass parameters in. MyExe.exe accepts parameters. An other problem is when PathToExe has blank spaces. ProcessBuilder seems not working. For example:
C:\\User\\My applications\\MyExe.exe
Thank you.
Solution 1:
Pass your arguments in constructor itself.
Process process = new ProcessBuilder("C:\\PathToExe\\MyExe.exe","param1","param2").start();
Solution 2:
You're on the right track. The two constructors accept arguments, or you can specify them post-construction with ProcessBuilder#command(java.util.List)
and ProcessBuilder#command(String...)
.