python java 调用
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2022-05-01 08:37:45
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<dependency> <groupId>jython</groupId> <artifactId>jython</artifactId> <version>2.1</version> </dependency>
package com.curiousby.python.demo; import org.python.core.PyFunction; import org.python.core.PyInteger; import org.python.core.PyObject; import org.python.util.PythonInterpreter; /** * @author baoyou E-mail:curiousby@163.com * @version 2016年8月1日 下午1:05:36 *<pre> <dependency> <groupId>jython</groupId> <artifactId>jython</artifactId> <version>2.1</version> </dependency> *</pre> * desc: ... */ public class PythonByJava { public static void main(String[] args) { PythonInterpreter interpreter = new PythonInterpreter(); interpreter.execfile("I:\\cache\\ea-ws\\DemoJava\\conf\\Test1.py"); PyFunction func = (PyFunction)interpreter.get("sum",PyFunction.class); int a = 1, b = 2 ; PyObject pyobj = func.__call__(new PyInteger(a), new PyInteger(b)); System.out.println(pyobj.toString()); } }
结果:
3
其他两种 调用方法:
a) 直接执行Python脚本代码
PythonInterpreter interpreter = new PythonInterpreter(); interpreter.exec("days=('mod','Tue','Wed','Thu','Fri','Sat','Sun'); "); ///执行python脚本
b)使用Runtime.getRuntime()执行脚本文件
Process proc = Runtime.getRuntime().exec("python D:\\demo.py"); proc.waitFor();