动态编译Java并通过反射执行方法

String javaSource = "c:/test.java";
  String className = "test";
  String classPath = "c:/classes";
  
  //动态编译
  String[] args = new String[] {"-classpath", "%CLASSPATH%;"+ ServerConfig.WWWROOT + File.separatorChar + "WEB-INF" + File.separatorChar + "classes" +";"+ ServerConfig.WWWROOT + File.separatorChar + "WEB-INF" + File.separatorChar + "lib"+ File.separatorChar + "dom4j-1.6.1.jar", "-d", classPath, javaSource};
  int status = javac.compile(args);
  if(status == 0)
     {
      try {
       URL url = new URL("file:/" + classPath + "/");
       //动态载入刚编译的classes
    URLClassLoader classLoad = new URLClassLoader(new URL[]{url}, Thread.currentThread().getContextClassLoader());
    //反射
    Class cls = classLoad.loadClass(className);
    Method method = cls.getDeclaredMethod("Transfer", new Class[]{String.class});
    Object obj = method.invoke(cls, new Object[]{"http://www.sohu.com/"});
    if(obj != null){
     Document objXml = (Document) obj;
     return objXml;
    }
   } catch (ClassNotFoundException e) {
    e.printStackTrace();
   } catch (SecurityException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
   } catch (NoSuchMethodException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
   } catch (IllegalArgumentException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
   } catch (IllegalAccessException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
   } catch (InvocationTargetException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
   } catch (MalformedURLException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
   }
     }