jython 一些认识

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首页 http://www.jython.org/

具体安装过程略过~

文档 http://www.jython.org/jythonbook/en/1.0

在jython 2.5 后，取消了jythonc命令，可以用以下命令编译，但这个命令只能编译整个目录，指定文件还不行。
jython -m compileall path/to/your/jython/files'，
最后会生成*$py.class文件。

org.python.core中有 java调用jython的几个核心类

package com.livefun.factory;import java.util.HashMap;import org.python.core.PyFunction;import org.python.core.PyObject;import org.python.util.PythonInterpreter;public class JythonFactory {private static final JythonFactory instance = new JythonFactory();private static final HashMap<String, PythonInterpreter> piMap = new HashMap<String, PythonInterpreter>();public static JythonFactory getInstance() {return instance;}public Object getJavaObjectFromJythonFile(String interfaceName, String pathToJythonModule) {Object javaObject = null;PythonInterpreter interpreter = cacheInterpreter(pathToJythonModule);String tempName = pathToJythonModule.substring(pathToJythonModule.lastIndexOf("/") + 1);tempName = tempName.substring(0, tempName.indexOf("."));//tempName 是截取出的jython文件名String instanceName = tempName.toLowerCase();String javaClassName = tempName.substring(0, 1).toUpperCase() + tempName.substring(1);System.out.println("javaClassName" + javaClassName);String objectDef = "=" + javaClassName + "()";interpreter.exec(instanceName + objectDef);//相当于在interpreter中执行  name = jython函数名()try {Class JavaInterface = Class.forName(interfaceName);javaObject = interpreter.get(instanceName).__tojava__(JavaInterface);//从PythonInterpreter翻译器对象中拿到 jython模块的instanceName实例 然后转换成JavaInterface类型的java对象} catch (ClassNotFoundException ex) {ex.printStackTrace(); // Add logging here}return javaObject;}public PyObject getPyObjectFromJythonFile(String typeName, String pathToJythonModule) {PyObject pyObject = null;PythonInterpreter interpreter = cacheInterpreter(pathToJythonModule);String instanceName = typeName.toLowerCase();//instanceName 是为interpreter jython中的接口对象起得名字String objectDef = "=" + typeName + "()";interpreter.exec(instanceName + objectDef);//相当于在interpreter中执行  name = 接口名()pyObject = interpreter.get(instanceName);return pyObject;}public PyFunction getPyFunctionFromJythonFile(String funcName, String pathToJythonModule) {PyFunction pyFunction = null;PythonInterpreter interpreter = cacheInterpreter(pathToJythonModule);pyFunction = (PyFunction) interpreter.get(funcName, PyFunction.class);//PyFunction.class 和 （PyFunction） 都可省略return pyFunction;}private PythonInterpreter cacheInterpreter(String pathToJythonModule) {PythonInterpreter interpreter = null;if (piMap.get(pathToJythonModule) != null) {interpreter = piMap.get(pathToJythonModule);} else {interpreter = new PythonInterpreter();interpreter.execfile(pathToJythonModule);//根据传入的jython模块文件转换成 interpreter 对象piMap.put(pathToJythonModule, interpreter);}return interpreter;}}

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