Rhino Javascript：如何将Object转换成Javascript原语？

尝试以下

 public static void main(String [] args) throws Exception {        scriptEngine engine = new scriptEngineManager().getEngineByName ("rhino");         data data = new data();        Context.enter().getWrapFactory().setJavaPrimitiveWrap(false);        try         {      engine.eval("function test(data) { return data.get('value1') + 5;};");      System.out.println("Result:" + ((Invocable)engine).invokeFunction("test", data));         }         catch (Exception e)         {      e.printStackTrace();         }     }    public static class data     {        Double value = 1.0d;        public Number get(String arg)  {  return value; }     }

另外，您可以修改javascript函数以将值显式转换为数字：

function test(data) { return parseInt(data.get('value1'), 10) + 5;}