Java原生调用python

java调用python 不用使用第三方库

java调用python过程中解决python第三方库问题_wangxf0812的博客-CSDN博客_java调用python第三方库

 python中字符串拼接

Pyhton:字符串拼接_北漠220的博客-CSDN博客

java代码：

package hello;

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

public class Main{
    public static void main(String[] args) throws IOException, InterruptedException, IOException {

        String a = "hello";
        String b = "world";

        //通过原生方式调用，解决python文件引入第三方库的问题
        //第一个参数默认是python,第二个参数python脚本路径，第三和第四个参数是python要接收的参数
        String[] argg = new String[] { "python", "D:/xm/hello.py", a,b};

        Process pr = Runtime.getRuntime().exec(argg);

        BufferedReader in = new BufferedReader(new InputStreamReader(pr.getInputStream()));
        String line;
        String result = "";
        //接收返回结果
        while ((line = in.readLine()) != null) {
            result += line;
        }
        System.out.println(result);
        in.close();
        pr.waitFor();
    }

}

Python代码：

import sys

a = sys.argv[1]
b = sys.argv[2]

print("你好世界，{},{}".format(a,b))