Rhino將java.lang.String轉換為JavaScript String

Question

Context.javaToJS似乎只是直接傳遞java.lang.Strings。

我正在對JavaScript進行沙箱處理（根據http://codeutopia.net/blog/2009/01/02/sandboxing-rhino-in-java/ ），因此除非在JavaScript中打孔，否則java.lang.String在JavaScript中不可用。 ClassShutter （我寧願不這樣做）。

我是否缺少明顯的東西？

Answer 1

嘗試這個：

ScriptEngineManager factory = new ScriptEngineManager();
ScriptEngine engine = factory.getEngineByName("JavaScript");
ScriptContext context = engine.getContext();
context.setAttribute("jsString", "I am Java String", ScriptContext.ENGINE_SCOPE);
context.setAttribute("jsBoolean", true, ScriptContext.ENGINE_SCOPE);
context.setAttribute("jsNumber",  123456, ScriptContext.ENGINE_SCOPE);
engine.eval("function getValueAndType(obj){return obj + ' - ' + typeof obj;}");
Assert.assertEquals("Something wen wrong", "I am Java String - string", engine.eval("getValueAndType(jsString)"));
Assert.assertEquals("Something wen wrong", "true - boolean", engine.eval("getValueAndType(jsBoolean)"));
Assert.assertEquals("Something wen wrong", "123456 - number", engine.eval("getValueAndType(jsNumber)"));