如何将 Rhino-JavaScript 数组转换为 Java-Arrays [英] How to convert Rhino-JavaScript arrays to Java-Arrays

问题描述

我有以下几点:

ScriptEngineManager mgr = new ScriptEngineManager();
ScriptEngine jsEngine = mgr.getEngineByName("JavaScript");
jsEngine.eval("function getArray() {return [1,2,3,4,5];};");
Object result = jsEngine.eval("getArray();");

如何将 sun.org.mozilla.javascript.internal.NativeArray 类型的结果对象转换为相应的 java 数组?有人能告诉我一个工作代码示例在哪里完成吗?它应该适用于字符串和整数数组.另外，如果知道在哪里可以找到 Rhino 引擎和 java 之间的其他数据类型转换，那就太好了.

How can i convert the result object which is of type sun.org.mozilla.javascript.internal.NativeArray to a corresponding java array? Can somone show me a working code sample where this is done? It should work for String and Integer arrays. Plus, it would be great to know where to look for other data type conversions between the rhino engine and java.

顺便说一句，我知道这个页面但我真的在寻找一个工作代码示例.

Btw, i know this page but i'm really looking for a working code sample.

推荐答案

NativeArray arr = (NativeArray) result;
Object [] array = new Object[(int) arr.getLength()];
for (Object o : arr.getIds()) {
    int index = (Integer) o;
    array[index] = arr.get(index, null);
}

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