Java Call Python method summary

http://download.csdn.net/detail/xingjiarong/9429266 Download the Jython package and add the Jython.jar to the project catalog

First, execute the Python statement directly in the Java class

import org.python.util.PythonInterpreter;publicclass FirstJavaScript {    publicstaticvoidmain(String args[]) {        new PythonInterpreter();        interpreter.exec("days=(‘mod‘,‘Tue‘,‘Wed‘,‘Thu‘,‘Fri‘,‘Sat‘,‘Sun‘); ");        interpreter.exec("print days[1];");    }// main}

The result of the call is Tue, which is displayed in the console, which is called directly.

Second, call the function in native Python script in Java

First, create a python script named: my_utils.py

def adder(a, b):      return a + b  

Then build a Java class that you can use to test,

Java Class Code Firstjavascript:

 import org.python.core.PyFunction; import org.python.core.PyInteger; import org.python.core.PyObject; import org.python.util.PythonInterpreter; Public  class firstjavascript {     Public Static voidMain (String args[]) {Pythoninterpreter interpreter =NewPythoninterpreter (); Interpreter.execfile ("c:\\python27\\programs\\my_utils.py"); pyfunction func = (pyfunction) interpreter.Get("Adder", Pyfunction.class); int a = ., B =2; Pyobject pyobj = func.__call__ (NewPyinteger (a),NewPyinteger (b)); System.out.println ("Anwser ="+ pyobj.tostring ()); }//Main}

The resulting result is: Anwser = 2012

C. Execute python script directly using Java

Create a script inputpy

#open files  ‘hello‘   number=[3,5,2,0,6]   number   number.sort()   number   number.append(0)   number   number.count(0)   number.index(5)

To create a Java class, call this script:

import org.python.util.PythonInterpreter;publicclass FirstJavaScript {    publicstaticvoidmain(String args[]) {        new PythonInterpreter();        interpreter.execfile("C:\\Python27\\programs\\input.py");    }// main}

The resulting results are:
View Plain

hello  [3, 5, 2, 0, 6]  [0, 2, 3, 5, 6]  [0, 2, 3, 5, 6, 0]  2  3  

Java Call Python method summary