java - 如何从 JSON 数组中检索 JSON 对象

Question

我有以下 JSON。在这个 JSON 中，我将“ticketDetails”作为 JSON 数组。我想从这个数组中检索 json 对象“金额”中的 ticketPrice 值。我该怎么做？

{
    "ticketDetails": [{
        "seq": 1,
        "qty": 2,
        "amount": {
            "ticketPrice": 120,
            "bookingFee": 50
        },
        "session": {
            "id": 1001,
            "date": "2013, 9, 15",
            "time": "1300"
        },
        "venue": {
            "id": "MTRG",
            "name": "Adlabs Manipur",
            "companyCode": "ADLB"
        },
        "event": {
            "id": "ET00000001123",
            "name": "Chennai Express",
            "producerCode": "YRF"
        },
        "category": {
            "ttypeCode": "00012",
            "areaCatCode": "2414",
            "type": "Gold",
            "price": 270
        }
    }]
}

任何建议都会有帮助...

Answer 1

下面是从给定的 JSONObject 中检索 ticketPrice 的示例代码:

JSONObject objData = (JSONObject)JSONSerializer.toJSON(data);
JSONArray objTicketDetailsJsonArr = objData.getJSONArray("ticketDetails");
for(int nSize=0; nSize < objTicketDetailsJsonArr.size(); nSize++){
    String ticketPrice = "";
    ticketPrice = objTicketDetailsJsonArr.getString("ticketPrice");
}

以下是上述代码的导入:

import net.sf.json.JSONArray;
import net.sf.json.JSONObject;
import net.sf.json.JSONSerializer;

JAR 源:http://json-lib.sourceforge.net/