java里面嵌套执行python脚本
2021-01-29 05:13
标签：col word span nbsp bsp text comm current keyword 方法一：通过RunTime.getRuntime().exec(shellScript) 方法2：通过Jython调用，这种方式不太推荐，记得调用selenium的库会报No module found，可是明明引用了，而且java社区不太喜欢这种强耦合的方式调用Python，所以官网也不怎么更新了，在微服务架构大行其道的今天，这种程序间嵌套调用的方式将会逐渐被淘汰 java里面嵌套执行python脚本 标签：col word span nbsp bsp text comm current keyword 原文地址：https://www.cnblogs.com/feibazhf/p/14337603.html //方式1 不带参数
String classpath = Thread.currentThread().getContextClassLoader().getResource("").getPath();
String shellScript = null;
if (System.getProperties().getProperty("os.name").toLowerCase().indexOf("windows") != -1){
shellScript = String.format("python template.py", classpath.substring(1));
}else {
shellScript = String.format("python3 template.py", classpath.substring(1),classpath);
}
Runtime rt = Runtime.getRuntime();
//方式2 带参数
String command = "D:\\calculator_simple.py";
String num1 = "1";
String num2 = "2";
String[] cmdArr = new String[] {exe， command， num1， num2};
Process process = Runtime.getRuntime().exec(cmdArr);
InputStream is = process.getInputStream();
DataInputStream dis = new DataInputStream(is);
String str = dis.readLine();
process.waitFor();
System.out.println(str); //此处输出3
#calculator_simple.py脚本
# coding=utf-8
from sys import argv
num1 = argv[1]
num2 = argv[2]
sum = int(num1) + int(num2)
print sum
String python = "D:\\simple_python.py";
PythonInterpreter interp = new PythonInterpreter();
interp.execfile(python);
//方式1 不带参数
String command = "D:\\calculator_simple.py";
String num1 = "1";
String num2 = "2";
String[] cmdArr = new String[] {exe， command， num1， num2};
Process process = Runtime.getRuntime().exec(cmdArr);
InputStream is = process.getInputStream();
DataInputStream dis = new DataInputStream(is);
String str = dis.readLine();
process.waitFor();
System.out.println(str);
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