Java JSON序列化 - 最佳实践 [英] Java JSON serialization - best practice

问题描述

我需要为某些对象实现JSON序列化，而在与通用集合集成时遇到问题。

所有可序列化的类实现此接口（JSONObject来自 this < a> library）：

 接口JSONSerializable {
 public JSONObject dump（）throws JSONException // serializes object 
 public void load（JSONObject obj）throws JSONException //反序列化对象
} 
  

代码我基于java.util.list的集合看起来或多或少是这样的：

  class AwesomeList< T extends JSONSerializable>实现JSONSerializable {
 private LinkedList< T> items = new LinkedList< T>（）; 
 ... 
 ... 
 
 public JSONObject dump（）throws JSONException {
 JSONObject result = new JSONObject（）; 
 JSONArray a = new JSONArray（）; （t i：items）
 {
 a.put（i.dump（））; 
} 
 result.put（items，a）; 
返回结果; 
} 
 
 public void load（JSONObject obj）throws JSONException {
 //这里是我的问题
} 
} 
  p> 
 
 
  T newItem = new T（）; 
 newItem.load（obj）; 
  
如何修改我对此任务的方法？
解决方案
你是否绑在这个图书馆？  Google Gson 非常受欢迎。我自己没有使用泛型，但是他们的首页说，Gson认为对泛型的支持非常重要。
 
I need to implement JSON serialization for some objects, and I've encountered a problem when it came to integration with generic collections. 

All serializable classes implement this interface (JSONObject comes from this library):
interface JSONSerializable{
    public JSONObject dump() throws JSONException //serializes object
    public void load(JSONObject obj) throws JSONException //deserializes object
}
Code for my collection based on java.util.list looks more or less like this:
class AwesomeList<T extends JSONSerializable> implements JSONSerializable{
    private LinkedList<T> items = new LinkedList<T>();
    ...
    ...

    public JSONObject dump() throws JSONException {
        JSONObject result = new JSONObject();
        JSONArray a = new JSONArray();
        for(T i : items){
            a.put(i.dump());
        }
        result.put("items", a);
        return result;
    }

    public void load(JSONObject obj) throws JSONException{
        //here is my problem
    }
}
My problem is: When I load AwesomeList from JSONObject, I need to create its elements but it's impossible since java forbids me to write 
T newItem = new T();
newItem.load(obj);
How should I modify my approach to this task?
解决方案
Are you tied to this library? Google Gson is very popular. I have myself not used it with Generics but their front page says Gson considers support for Generics very important.

                        
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