I have Java bean class, for example:
public class User implements Serializable{
protected String Name = null;
protected String Password = null;
// ...
}
I can convert it easily to org.json object using
User u = new User();
u.setName("AAA");
u.setPassword("123");
JSONObject jo = new JSONObject(u);
Is it way to convert JSONObject to Java bean class?
There's an existing library that implements the reflection method to convert JSON Object to Java bean, called Gson.
Using it you can convert JSON text (the result of calling jo.toString() in your code) back to the User type:
User user = new Gson().fromJson(jSONObjectAsString, User.class);
This library also implements a toJson() method, so it should be possible for you to replace your use of the json.org implementation with Gson for all cases.
There is no built-in way to do that using the json.org library.
Depending on your needs, you can either
fromJSONObject() method for each of your beans, which uses JSONObject#has() and JSONObject#get*() to get the needed values and handle any type problems.JSONObject#names() and reflection to populate a bean instance with data from a JSONObject. This is not difficult, but could be too heavy lifting if all you need it to use it with a couple of bean classes.public static Object toBean(JSONObject jobject, Object object) {
for (Field field : object.getClass.getDeclaredFields()) {
field.set(object, jobject.getString(field.getName()));
}
}
Call:
User user = (User) toBean(jo, new User());
