perform same operation as linux pipe in java?

Question

How can I do the following in Java code (without invoking the shell directly - not using the pipe operator at all)?

echo path | ./app

Is this the same as starting the app and then writing to STDIN?

I want to be able to start a process from Java and destroy it (and not worry about child processes)

Answer 1

您可以使用ProcessBuilder ，它包装Process类以从Java应用程序启动进程，并使用Process#getInputStream和Process#getOutputStream捕获其IO流。