如何将 JSON Array 转换为 Java ArrayList 对象 [重复]

Question

这是我在 json 数组中的 servlet 使用

转换为字符串的结果

 /*Converting Json Array to String*/
         StringWriter toStringF = new StringWriter();
         arrayFood.writeJSONString(toStringF);
         /*Printing Json Array - String*/
         response.getWriter().println(toStringF.toString());

结果显示

[{"Food":{"foodName":"Chicken Tenders","foodDescription":"Deep fried chicken tenders with rice","price":150.0,"foodID":59,"rating":5.0}},{"Food":{"foodName":"Roasted Duck\/Asado Rice","foodDescription":"Roasted duck with asado rice","price":210.0,"foodID":32,"rating":4.0}},{"Food":{"foodName":"Steamed Minced Beef Rice","foodDescription":"Steamed minced beef with rice","price":140.0,"foodID":40,"rating":4.0}},{"Food":{"foodName":"Buffalo Wings","foodDescription":"Deep fried chicken wings coated in hot sauce","price":160.0,"foodID":54,"rating":4.0}},{"Food":{"foodName":"H Burger","foodDescription":"The Hatchery's specialty burger","price":135.0,"foodID":58,"rating":4.0}}] 

我试图在网上搜索如何将 jsonArrayStrings 转换为对象的数组列表，但是有不同类型的代码和导入，现在我完全不知道该使用哪个。如果有更简单的方法来做到这一点，它将对我有很大帮助。

我想将上面的 JsonArray 字符串转换为一个对象。像 FoodName 这样的东西可以设置到它的属性中，比如这个 ex。 food.FoodName(jsonObject.getString("FoodName"))..

ArrayList<Food> food = new ArrayList<Food>();

Answer 1

参考这个site

JSONArray arr = new JSONArray(yourJSONresponse);
List<String> list = new ArrayList<String>();
for(int i = 0; i < arr.length(); i++){
    list.add(arr.getJSONObject(i).getString("name"));
}