How to start a new process by java program

There are generally two ways to start the operating system process through Java

1. By starting

().exec());

Exec has three overload methods, which can set the corresponding commands, system properties, and the working directory of the new process.

2. Start through ProcessBuilder

ProcessBuilder is a recommended way to use after Java 1.5, and it has more processing power.

like:

Obtain the execution information of the process, including standard output and standard error output;
Set the current working directory;
Change environmental parameters, etc.;

			ProcessBuilder pb = new ProcessBuilder();
			List<String> cmds = new ArrayList<String>();

			("/bin/sh");
			("/data/soft/java");
			("");
			(cmds);
			();
			();
			();
			(new File(getWorkerDir()));
			();

After calling the start() method, you can return a Process class.

This class has a structure as follows:

public abstract class Process {

    //Return the output stream of normal input of the connection child process    abstract public OutputStream getOutputStream();

    //Return the input stream output from the connection child process    abstract public InputStream getInputStream();

    //Return the input stream of the abnormal output of the connection child process    abstract public InputStream getErrorStream();

    //Prompt the current thread to wait until only if the process has ended.  The function returns immediately when the child process ends    abstract public int waitFor() throws InterruptedException;

    //Return the exit value at the end of the child process    abstract public int exitValue();

    //Kill the child process    abstract public void destroy();
}

Summarize

The above is personal experience. I hope you can give you a reference and I hope you can support me more.