Java实现的执行python脚本工具类示例【使用jython.jar】

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, Map<String, 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;  }}