Rhino用Java评估javascript对象

Question

我对Rhino不太熟悉，并尝试将javascript对象转换为java对象，但无法这样做。 它似乎无法正确评估。

我拥有的javascript是

var myObject = new Object();
myObject.string1 = 'Hello';
myObject.string2 = 'World';
myObject.id = 1;
var parser = new Packages.com.MyParser();
var returnStr = parser.PrintObj(myObject);

我有以下要评估的Java类，

public class Person extends ScriptableObject {

    private int id;
    private String string1;
    private String string2;

    public Person() {}

    public void jsConstructor() {
        this.string1 = "";
        this.string2 = "";
        this.id = 0;
    }

    public int getID()
    {
        return this.id;
    }

    public void jsSet_id(int value)
    {
        this.id = value;
    }

    public int jsGet_id()
    {
        return this.id;
    }

    public String jsGet_string1()
    {
        return this.string1;
    }

    public void jsSet_string1(String value)
    {
        this.string1 = value;
    }

    public String jsGet_string2() {
        return this.string2;
    }

    public void jsSet_string2(String value)
    {
        this.string2 = value;
    }

    @Override
    public String toString() {
        return id + " " + string1 + " " + string2;
    }

    @Override
    public String getClassName() {
        return "Person";
    }

我的解析器的框架是

public class MyParser {
    public String PrintObj(ScriptableObject obj) {
        // Need to convert to Person object here
        // Obviously casting doesnt work here
        return null;
    }
}

谢谢

Answer 1

确定了！

首先，我需要在javascript中定义类。 起初它抱怨没有名称空间“ com”就找不到该类。 必须补充一点...

defineClass("com.Person")
var myObject = new Person();
myObject.string1 = 'Hello';
myObject.string2 = 'World';
myObject.id = 1;
var parser = new Packages.com.MyParser();
var returnStr = parser.PrintObj(myObject);

然后在解析器中添加以下内容：

public String PrintObj(ScriptableObject obj) {
    try {
        Person pObj = (Person)Context.jsToJava(obj, Person.class);
        System.out.println("Printing person: " + pObj);
    }
    catch (Exception e) {
        e.printStackTrace();
    }
    return null;
}