java 调用 python代码

java 

其中arg是String[] { “python”,path,url1,url2 }; ，path是python程序所在的路径，url1是参数1，url2是参数2，以此类推。

public class Test11 {
    public static void main(String[] args) {
        int a = 18;
        int b = 23;
        try {
            String[] arg = new String[] { "python", "D:\\demo2.py", String.valueOf(a), String.valueOf(b) };
            Process proc = Runtime.getRuntime().exec(arg);// 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();
        }
    }
}

 

python

import sys
 
def func(a,b):
    return (a+b)
 
if __name__ == '__main__':
    a = []
    for i in range(1, len(sys.argv)):
        a.append((int(sys.argv[i])))
 
    print(func(a[0],a[1]))


或者
# coding=utf-8
from sys import argv
 
a = argv[1]
b = argv[2]
res = int(a) + int(b)
print(res)

 

参考 https://blog.csdn.net/qq_26591517/article/details/80441540