读取Java中的javascript对象 [英] Read javascript object in java

问题描述

我有一个如下的javascript对象.

I have a javascript object like follows.

{
    "name": {
        "type": "text",
        "onClick": function () {
            console.log("Hello");
        }
    }
}

它以字符串格式存储在Java中.

It is stored in string format in Java like.

String obj = "{ \"name\": { \"type\": \"text\", \"onClick\": function () { console.log(\"Hello\"); } } }";

我正在尝试寻找一种方法来读取Java中的obj并遍历对象图，就像我们使用JSON使用JSON一样(如果它没有函数声明的话).

I'm trying to figure out a way to read this obj in Java and traverse through the object graph like we can with JSON using Jackson if it didn't have function declaration.

是否有任何Java库可以读取/解析表示javascript对象(而不仅仅是JSON)的字符串并遍历对象图?

Is there any Java library to read/parse a string representing javascript object (not just JSON) and traverse through the object graph?

推荐答案

您可以使用Java的 JavaScript 内置.像

You could use Java's ScriptEngine and the Javascript built-in. Something like,

String obj = "{'name':{'type': 'text', 'onClick': function (){console.log('Hello')}}}";
try {
    ScriptEngine se = new ScriptEngineManager().getEngineByName("js");
    se.eval(String.format("Object.bindProperties(this, %s);", obj));
    se.eval("print(this.name.onClick)");
} catch (ScriptException e) {
    e.printStackTrace();
}

可以读取函数声明(和其他任何obj属性).

which can read the function declaration (and any of the other obj properties).

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