java 如何调用Python文件包括传参

String[] arguments = new String[] {"python","D:\\ccc\\1.py",str};//指定命令、路径、传递的参数
        try {
         Writer out = response.getWriter(); //获得HttpServletResponse输出流对象
            Process process = Runtime.getRuntime().exec(arguments);//开启进程来执行脚本文件
            BufferedReader in = new BufferedReader(new InputStreamReader(process.getInputStream()));//获取字符输入流对象
            String line = null;  
          while ((line = in.readLine()) != null) {  
              JSONArray Resulet = JSONArray.fromObject(util.DataHandle(line.toString()));//读取到结果（一行文字）进行数据处理
              String json = Resulet.toString();
              out.write(json);//使用输出流对象向小程序发送字符数据
          }  
          out.close();
          in.close();  
        } catch (Exception e) {
            e.printStackTrace();
        }

from keras.models import load_model
import numpy as np
from keras.preprocessing import image
import sys
import re
def predict(pic_dir):
    model = load_model("D:/ccc/model.h5")
    images = image.load_img(pic_dir, target_size=(32,32))
    images = image.img_to_array(images)
    images = np.expand_dims(images, axis=0)
    images=np.array(images,dtype=int)
    images_normalize=images.astype("float32")/255.0    
    pre_y=model.predict(images_normalize)
    pre_y=pre_y.reshape(-1)
    np.set_printoptions(suppress=False)   
    pre_y=[pre_y[i]*100 for i in range(len(pre_y))]
    pre_y=[str(pre_y[i]) for i in range(len(pre_y))]    
    for i in range(len(pre_y)):
        if pre_y[i].find('e',0,len(pre_y[i]))!=-1:
            wei=int(pre_y[i][len(pre_y[i])-1])-1
            pre_y[i]=re.sub(r'e-.*$','',pre_y[i])
            pre_y[i]=re.sub(r'[^0-9]','',pre_y[i])
            for j in range(0,wei):
                    pre_y[i]='0'+pre_y[i]
            pre_y[i]='0'+'.'+pre_y[i]        
    pre_y=[pre_y[i]+"%" for i in range(len(pre_y))]
    return pre_y
prediction=predict(sys.argv[1])
print(prediction)

import os
activate_this = 'path/to/activate_this.py'
execfile(activate_this, dict(__file__=activate_this))
os.system("python target.py")

import java.io.BufferedReader;
import java.io.InputStreamReader; 
public class Test {
 public static void main(String[] args) {
  try {
   System.out.println("start");
   Process pr = Runtime.getRuntime().exec("python /home/kui/桌面/a.py");
   BufferedReader in = new BufferedReader(new InputStreamReader(pr.getInputStream()));
   String line;
   while ((line = in.readLine()) != null) {
    System.out.println(line);
   }
   in.close();
   pr.waitFor();
   System.out.println("end");
  } catch (Exception e) {
   e.printStackTrace();
  }
 }
}