从Java代码调用外部JavaScript函数

使用

scriptEngine.eval(java.io.Reader)

scriptEngineManager manager = new scriptEngineManager();scriptEngine engine = manager.getEngineByName("Javascript");// read script fileengine.eval(Files.newBufferedReader(Paths.get("C:/scripts/Jsfunctions.js"), StandardCharsets.UTF_8));Invocable inv = (Invocable) engine;// call function from script fileinv.invokeFunction("yourFunction", "param");