package com.coupon.test;
import org.python.core.PyException;
import org.python.core.PyFile;
import org.python.core.PyObject;
import org.python.core.PyString;
import org.python.util.PythonInterpreter;
public class javaJython {
/**
* 关注Jython这几个方面的内容:
* 1. 怎样从某个指定的路径import一个Jython模块?
* 2. 怎样调用模块里的方法?
* 3. java 与 jython 间的参数应该怎样进行传递?
*
* @param args
* @throws PyException
*/
public static void main(String []args)throws PyException
{
PythonInterpreter interp = new PythonInterpreter();
// 1.
// 引入系统模块,并将[./pythonsrc]加入模块搜索路径中去。
interp.exec("import sys");
interp.exec("sys.path.append('E:/workspace/androidwork/CouponTest/src/com/coupon/test')");
// 2. 引入 fibo, 执行fibo.fib(100), ok
interp.exec("import fibo");
interp.exec("fibo.fib(100)");
// 3. 在Java 程序中获得 python内置类型的变量值。
String text = "'this is a bad day'";
interp.exec("x = " + text + " + '!!!'");
interp.exec("print x");
PyObject object = interp.get("x");
PyString xString = object.__str__();
String outX = xString.asString();
interp.exec("_file = open('E:/workspace/androidwork/CouponTest/src/com/coupon/test/fibo.py')");
object = interp.get("_file");
PyFile file = (PyFile)object;
PyString content = file.read(100);
System.out.println(content);
interp.exec("array = _file.read(100)");
String array = interp.get("array").asString();
System.out.println(array);
interp.exec("_file.close()");
file.close();
}
}
///////////////////////////////////////////////////////////////////////////////
fibo.py
# Fibonacci numbers module
def fib(n): # write Fibonacci series up to n
a, b = 0, 1
while b < n:
print b,
a, b = b, a+b
def fib2(n): # return Fibonacci series up to n
result = []
a, b = 0, 1
while b < n:
result.append(b)
a, b = b, a+b
return result
print fib(20)