Java ProcessBuilder Example
June 13, 2014
1. Command: List of commands to be handled.
2. Environment: System.getenv() returns the environment of current process. It can be changed.
3. working directory: Working directory can be changed where the user commands resides. Default is current working directory.
4. standard input/output: redirectInput and redirectOutput can change the standard input output.
To initiate process builder, we need to do as belwo.
Process p = new ProcessBuilder("myCommand", "myArg");
p.start();
test.bat
echo %1% echo %2%
ProcessBuilderDemo.java
package com.test;
import java.io.File;
import java.io.IOException;
import java.lang.ProcessBuilder.Redirect;
public class ProcessBuilderDemo {
public static void main(String[] args) throws IOException, InterruptedException {
ProcessBuilder processBuilder = new ProcessBuilder("D:/test.bat", "ABC", "XYZ");
processBuilder.directory(new File("D:/"));
File log = new File("D:/log.txt");
processBuilder.redirectErrorStream(true);
processBuilder.redirectOutput(Redirect.appendTo(log));
Process p = processBuilder.start();
p.waitFor();
System.out.println("Done");
}
}
