JSON-基於內容的簡單獲取數組

Question

所以，我有一個JSON文件，我想在主對象中加載一個數組，所以我用以下方法加載它：

try {
    schemaData = (JSONObject) parser.parse(new FileReader(schema));
    schemaItemDataArray = (JSONArray) schemaData.get("items");
} catch (IOException | ParseException e) {
    e.printStackTrace();
}

我加載的名為“ items”的數組

schemaItemDataArray = (JSONArray) schemaData.get("items");

包含大量具有以下結構的無名對象：

            {
                "name": "TF_WEAPON_BAT",
                "defindex": 0,
                "item_class": "tf_weapon_bat",
                "item_type_name": "Bat",
                "item_name": "Bat",
                "proper_name": false,
                "item_slot": "melee",
                "model_player": "models\/weapons\/w_models\/w_bat.mdl",
                "item_quality": 0,
                "image_inventory": "backpack\/weapons\/c_models\/c_bat",
                "min_ilevel": 1,
                "max_ilevel": 1,
                "image_url": "http:\/\/media.steampowered.com\/apps\/440\/icons\/c_bat.d037d6a40ec30ab4aa009387d476dca889b6f7dc.png",
                "image_url_large": "http:\/\/media.steampowered.com\/apps\/440\/icons\/c_bat_large.0ac4b6f335f671bd6b5e6ae02f47985af2da8c48.png",
                "craft_class": "weapon",
                "craft_material_type": "weapon",
                "capabilities": {
                    "nameable": true,
                    "can_craft_mark": true,
                    "can_be_restored": true,
                    "strange_parts": true,
                    "can_card_upgrade": true,
                    "can_strangify": true,
                    "can_consume": true
                },
                "used_by_classes": [
                    "Scout"
                ]

            }

我想要做的是獲取一個JSONObject，其中包含我通過過濾名稱值選擇的對象。 例如，我想獲取所有將“名稱”鍵設置為“ TF_WEAPON_BAT”的對象，然后將其存儲到名為FoundItem的JSONObject中。

在此先感謝Denton。

Answer 1

據我所知，該庫沒有XPath樣式解析器。 您將需要自己瀏覽條目。 例如

JSONObject object = new JSONObject("{\"items\": [{\"name\":\"TF_WEAPON_BAT\"}, {\"name\":\"TF_WEAPON_BAT\"}]}");

JSONArray array = object.getJSONArray("items");
for (int i = 0; i < array.length(); i++) {
    String name = array.getJSONObject(i).getString("name");
    if ("TF_WEAPON_BAT".equals(name)) {
        // do something
        JSONObject foundItem = array.getJSONObject(i); // this holds the object that had a matching name element
        // you can add it to some other list
    }
}