Question

我试图解析以下json

{
  "status": 1,
  "value": {
    "star1": {
      "0": "Response from Vaighai is good",
      "1": "Shipment process is fine"
    },
    "star2": {
      "0": "Shipment process is fine",
      "1": "Response from Vaighai is good",
      "2": "Shipment status through app is"
    }
  }
}

这是我使用的代码

JSONObject value = new JSONObject(notificationResponse.getString("value"));
JSONObject starOne = value.getJSONObject("star1");
JSONObject starTwo = value.getJSONObject("star2");

Iterator<String> starOneIterator = starOne.keys();
Iterator<String> starTwoIterator = starTwo.keys();

String starOnestatus = null;
String starOnekey = null;
String starTwostatus = null;
String starTwokey = null;

while (starOneIterator.hasNext()){
    starOnekey = starOneIterator.next();
    starOnestatus = starOne.optString(starOneIterator.next());
}

while (starTwoIterator.hasNext()){
    starTwokey = starTwoIterator.next();
    starTwostatus = starTwo.optString(starTwoIterator.next());
}

我收到以下错误消息， java.util.NoSuchElementException ..我可能在运行时不知道密钥，所以我在while循环中迭代它，但错误消息被解雇了。

Answer 1

更改

starOnestatus = starOne.optString(starOneIterator.next());

到

starOnestatus = starOne.optString(starOnekey);

此更改也适用于其他迭代。

Answer 2

将此更改为

 JSONObject jObjRoot = new JSONObject(notificationResponse.toString());
    JSONObject jObjvalue = jObjRoot.getJSONObject("value");
    JSONObject starOne = jObjvalue.getJSONObject("star1");
    JSONObject starTwo = jObjvalue.getJSONObject("star2");

Iterator<String> starOneIterator = starOne.keys();
Iterator<String> starTwoIterator = starTwo.keys();

String starOnestatus = null;
String starOnekey = null;
String starTwostatus = null;
String starTwokey = null;

while (starOneIterator.hasNext()){
    starOnekey = starOneIterator.next();
    starOnestatus = starOne.optString(starOneIterator.next());
}

while (starTwoIterator.hasNext()){
    starTwokey = starTwoIterator.next();
    starTwostatus = starTwo.optString(starTwoIterator.next());
}

迭代json时出现java.util.NoSuchElementException错误

2 个答案: