android Rhino错误无法加载此类文件 [英] android Rhino error can't load this type of class file

问题描述

我在android中使用Rhino在Android(java)中执行JavaScript函数代码并从此代码中获取结果，但是我遇到了此异常

I'm using Rhino in android to execute JavaScript function code in Android(java) and get the result from this code, but I got this exception

01-22 11:33:57.063:E/AndroidRuntime(29175):由以下原因引起:java.lang.UnsupportedOperationException:无法加载这种类型的类文件

01-22 11:33:57.063: E/AndroidRuntime(29175): Caused by: java.lang.UnsupportedOperationException: can't load this type of class file

这是我的代码

String test = "function abc(x,y) {return x+y;}";
    org.mozilla.javascript.Context context = org.mozilla.javascript.Context.enter();
    try {
        ScriptableObject scope = context.initStandardObjects();
        Scriptable that = context.newObject(scope);
        Function fct = context.compileFunction(scope, test, "script", 1, null);
        Object result = fct.call(context, scope, that, new Object[] { 2, 3 });
        Log.i("JML...Info", "jajajajaj = " + org.mozilla.javascript.Context.jsToJava(result, int.class));
    } finally {
        org.mozilla.javascript.Context.exit();
    }

我在方法上遇到了异常

Function fct = context.compileFunction(scope，test，"script"，1，null);

Function fct = context.compileFunction(scope, test, "script", 1, null);

加载Web视图后，我在onCreate()方法中编写了这段代码，并使用rhino1_7R2.jar作为Rhino的jar.

I wrote this code in method onCreate() after load the webview and I use rhino1_7R2.jar as a jar for Rhino.

请帮助我，如果您知道通过Android中的JavaScript(函数的返回值)获取值的任何其他方法，请提出建议.

Please help me and if u know any other way to get a value from JavaScript(return value of function) in android please advice.

谢谢

推荐答案

我遇到了同样的问题，并且在这里找到了解决方案:

I had the same problem and I have found a solution here: Problems using Rhino on Android

默认情况下，rhino将尝试通过动态生成JVM字节码来进行优化. Android不会通过Dalvik字节码运行JVM字节码.这就是为什么您必须禁用优化的原因:

By default, rhino will try do optimization by generating JVM bytecode on the fly. Android doesn't run JVM bytecode byt Dalvik bytecode. That is why you have to disable optimization:

context.setOptimizationLevel(-1);

最诚挚的问候

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