package javatopython;

import org.python.core.PyFunction;
import org.python.core.PyInteger;
import org.python.core.PyObject;
import org.python.util.PythonInterpreter;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class testPython {
    public static void main(String[] args) {
        PythonInterpreter interpreter = new PythonInterpreter();
        interpreter.execfile("D:\\add.py");

        // 第一个参数为期望获得的函数（变量）的名字，第二个参数为期望返回的对象类型
        PyFunction pyFunction = interpreter.get("add", PyFunction.class);
        int a1 = 5, b1 = 10;
        //调用函数，如果函数需要参数，在Java中必须先将参数转化为对应的“Python类型”
        PyObject pyobj = pyFunction.__call__(new PyInteger(a1), new PyInteger(b1));
        System.out.println("the anwser is: " + pyobj);



        int a = 18;
        int b = 23;
        try {
            String[] args1 = new String[] { "python", "D:\\dome.py", String.valueOf(a), String.valueOf(b) };
            Process proc = Runtime.getRuntime().exec(args1);// 执行py文件

            BufferedReader in = new BufferedReader(new InputStreamReader(proc.getInputStream()));
            String line = null;
            while ((line = in.readLine()) != null) {
                System.out.println(line);
            }
            in.close();
            proc.waitFor();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }

    }
}