java如何引用jpython

Java与Python的交互与应用

最新推荐文章于 2025-07-15 10:45:56 发布

转载最新推荐文章于 2025-07-15 10:45:56 发布 · 647 阅读

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本文探讨了Java与Python的交互方式，并展示了如何利用Python的特性进行代码执行、变量设置与复杂操作，同时涉及正则表达式和列表操作。

import java.util.ArrayList;
import java.util.List;

import org.python.core.PyException;
import org.python.core.PyInteger;
import org.python.core.PyObject;
import org.python.util.PythonInterpreter;
public class python {
   public static void main(String []args)throws PyException
   {
       PythonInterpreter interp =new PythonInterpreter();

        System.out.println("Hello, brave new world");

        interp.exec("import sys");
        interp.exec("print sys");

        interp.set("a", new PyInteger(42));
        interp.exec("print 'test='+str(a)");
        interp.exec("x = 2+2");
        PyObject x = interp.get("x");

        System.out.println("x: "+x);
        System.out.println("Goodbye, cruel world");

        interp.exec("import re");
        //interp.exec("print dir(re)");
        interp.exec("t =re.compile('^(0{2}):(IFCSUM):(MANIFEST):')");
        interp.exec(" a = t.search('00:IFCSUM:MANIFEST:').groups()");
        PyObject k = interp.get("a");

        List list = ((List)k.__tojava__(List.class));
        // int ai= ((Integer)a.__tojava__(Integer.class)).intValue();
        System.out.println(k);
        System.out.println(list);

    }
}