파이썬 자바 호출

jar 包下载  

<dependency>  
    <groupId>jython</groupId>  
    <artifactId>jython</artifactId>  
    <version>2.1</version>  
 </dependency>

 

 

实例

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 class="brush:php;toolbar:false"> 
 <dependency> 
    <groupId>jython</groupId> 
    <artifactId>jython</artifactId> 
    <version>2.1</version> 
 </dependency> 
 *

* 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();