java中执行python脚本工具类

import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

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

public final class JythonUtil {

    private JythonUtil(){}

    /**
     * 执行某个.py文件
     * @param filePath
     * @throws IOException
     */
    public static void pythonExecute(String filePath) throws IOException{
        PythonInterpreter pin = new PythonInterpreter();
        InputStream is = new FileInputStream(filePath);
        pin.execfile(is);
        is.close();
    }

    /**
     * 获取python程序的变量值
     * @param filePath
     * @param ponames
     * @return
     * @throws IOException
     */
    public static List<PyObject> transP2JData(String filePath,String...ponames) throws IOException{
        PythonInterpreter pin = new PythonInterpreter();
        InputStream is = new FileInputStream(filePath);
        pin.execfile(is);
        is.close();
        List<PyObject> pos = new ArrayList<>();
        for (String poname : ponames) {
            PyObject po = pin.get(poname);
            pos.add(po);
        }
        return pos;
    }

    /**
     * 将参数赋给python程序执行
     * @param filePath
     * @param pomaps
     * @throws IOException
     */
    public static void transJ2PData(String filePath,Map<String,Object> pomaps) throws IOException {
        PythonInterpreter pin = new PythonInterpreter();
        InputStream is = new FileInputStream(filePath);
        for (String pomapkey : pomaps.keySet()) {
            pin.set(pomapkey,pomaps.get(pomapkey));
        }
        pin.execfile(is);
        is.close();
    }

    /**
     * 将参数赋给python程序执行,并获取python中的变量值
     * @param filePath
     * @param pomaps
     * @param ponames
     * @return
     * @throws IOException
     */
    public static List<PyObject> transJ2PData(String filePath,Object> pomaps,String...ponames) throws IOException {
        PythonInterpreter pin = new PythonInterpreter();
        InputStream is = new FileInputStream(filePath);
        for (String pomapkey : pomaps.keySet()) {
            pin.set(pomapkey,pomaps.get(pomapkey));
        }
        pin.execfile(is);
        is.close();
        List<PyObject> pos = new ArrayList<>();
        for (String poname : ponames) {
            PyObject po = pin.get(poname);
            pos.add(po);
        }
        return pos;
    }

}