Calling Java app with “subprocess” from Python and reading the Java app output

问题

What is the nicest way to read the output (i.e. via System.out.println) of a Java app which is called from Python with

subprocess.Popen("java MyClass", shell=True)

without writing and reading a file? (Using Jython etc is not a possible solution)

回答1:

p1 = subprocess.Popen(["/usr/bin/java", "MyClass"], stdout=subprocess.PIPE)
print p1.stdout.read() 

回答2:

I just found the solution:

p = subprocess.Popen("java MyClass",
          shell=True,
          stdout=subprocess.PIPE)
output, errors = p.communicate()

S.Mark's is fine too!

来源：https://stackoverflow.com/questions/2388423/calling-java-app-with-subprocess-from-python-and-reading-the-java-app-output