Java 如何从这个JSONString解析？

我通过HTTP请求

JSONString

获得下面的

JSONString

。我想要这个字符串中的所有

amount

值

我已经试过了：

try {
    // Getting JSON Array
    JSONArray spritPriceArr = jObj.getJSONArray("spritPrice");

    int spritPriceArrLength = spritPriceArr.length();
    for(int i=0; i < spritPriceArrLength; i++ ){

    JSONObject c = spritPriceArr.getJSONObject(i);
    String amount = c.getString("amount");

    System.out.println(amount);
     }

    } catch (JSONException e) {
    e.printStackTrace();
    }

试试看{
//获取JSON数组
JSONArray spritpricer=jObj.getJSONArray（“spritPrice”）；
int spritPriceArrLength=spritPriceArr.length（）；
for（int i=0；i

这适用于第一个

spritPrice数组

。但是如何获得另一个spritPrice数组的

数量

我真的不知道如何做到这一点。谁能帮帮我吗

---

这是我完整的JSON字符串的链接：“，”serviceText:“，”maestro:”true，“companyship:”false，“address:”Hofer Straße1（”Hofer Parkplatz“）“，”club:”false，“errorCode:”1，“service:”false，“latitude:”48.244911“，”bar:”false，“telephone:”4362467223634“}]

不只是获取字符串，还获取ArrayList或List并添加每个价格

像这样,

 ArrayList<String> prices=new ArrayList<String>

---

您可以询问是否有任何进一步的查询：）

这是我从jsonarray获取字符串的方式，请尝试这样做：

try {
  JSONArray spritPriceArr = jObj.getJSONArray("spritPrice");
  int spritPriceArrLength = spritPriceArr.length();
  String[] StringofAmount = new Strng[spritPriceArrLength]
  for(int i=0; i < spritPriceArrLength; i++ ){
    JSONObject c = spritPriceArr.getJSONObject(i);
    StringofAmount[i] = c.optString("amount");
  }
} catch (JSONException e) {
  e.printStackTrace();
}

试试看{
JSONArray spritpricer=jObj.getJSONArray（“spritPrice”）；
int spritPriceArrLength=spritPriceArr.length（）；
字符串[]StringofAmount=新字符串[spritPriceArrLength]
for（int i=0；i

试试这个

// ArrayList<String> amountList=new ArrayList<String>();
  String amount=null;
 try {
            // Getting JSON Array
            String your_json_response;
            JSONArray responseArray = new JSONArray(your_json_response);
            for(int j=0;j<responseArray.length();j++)
            {
                JSONArray spritPrice=responseArray.getJSONObject(i).JSONArray("spritPrice");

                int spritPrice= spritPrice.length();

                for(int i=0; i < spritPrice; i++ ){

                  JSONObject c = spritPrice.getJSONObject(i);

                     amount = c.getString("amount");
                     // amountList.add(amount); 
                      System.out.println(amount);
                       if(amount!=null)
                          break;
                    }
                    if(amount!=null)
                      break;
                }
            } catch (JSONException e) {
            e.printStackTrace();
            }

//ArrayList amountList=new ArrayList（）；
字符串金额=空；
试一试{
//获取JSON数组
字符串您的_json_响应；
JSONArray responseArray=新的JSONArray（您的json响应）；
对于（int j=0；j这可能会帮助您

private ArrayList<String> arrayList = new ArrayList<String>();
public void loadAmountFrom(String jsonArrayString) {
    try {
        JSONArray jsonArray = new JSONArray(jsonArrayString);
        loadAmountFromJsonArray(jsonArray);
    } catch (Exception e) {
        // TODO: handle exception
    }
}

private void loadAmountFromJsonArray(JSONArray jsonArray) {
    try {
        for (int i = 0; i < jsonArray.length(); i++) {
            Object object = jsonArray.get(i);
            if (object instanceof JSONArray) {
                loadAmountFromJsonArray(jsonArray);
            } else if (object instanceof JSONObject) {
                JSONObject jsonObject = (JSONObject) object;
                loadAmount(jsonObject);
            }
        }
    } catch (Exception e) {
        // TODO: handle exception
    }
}

private void loadAmount(JSONObject jsonObject) {
    try {
        Iterator<String> iterator = jsonObject.keys();
        while(iterator.hasNext()) {
            String key = (String) iterator.next();
            if(key.equals("amount")) {
                Object object = jsonObject.get(key);
                arrayList.add(object.toString());
            } else {
                Object object = jsonObject.get(key);
                if(object instanceof JSONArray) {
                    loadAmountFromJsonArray((JSONArray) object);
                } else if(object instanceof JSONObject) {
                    loadAmount((JSONObject) object);
                }
            }
        }
    } catch (Exception e) {
        // TODO: handle exception
    }
}

private ArrayList ArrayList=new ArrayList（）；
public void loadAmountFrom（字符串jsonArrayString）{
试一试{
JSONArray JSONArray=新的JSONArray（jsonArrayString）；
jsonArray的装载量（jsonArray）；
}捕获（例外e）{
//TODO:处理异常
}
}
JSONArray（JSONArray-JSONArray）的专用void LoadAmount{
试一试{
for（int i=0；i

只需将字符串响应传递给loadAmountFrom（String）方法…
您的数组
spritPrice
的长度为1:

  "spritPrice":[
     {
        "amount":"1.329",
        "datAnounce":"2013-11-27 13:05:07",
        "errorItems":[

        ],
        "errorCode":0,
        "datValid":1385553907000,
        "spritId":"DIE"
     }
  ],

根元素必须是
JSONArray
，而不是
JSONObject

一个好的链接：

它表明您的JSON是一个数组

[
   {
      "kredit":true,
      "self":false,
      "spritPrice":[
     {
        "amount":"1.329",
        "datAnounce":"2013-11-27 13:05:07",
        "errorItems":[

        ],
        "errorCode":0,
        "datValid":1385553907000,
        "spritId":"DIE"
     }
      ],
      "automat":true,
      "city":"Braunau",
      "open":true,
      "distance":2.21,
      "postalCode":"5280",
      "errorItems":[

      ],
      "priceSearchDisabled":false,
      "longitude":"13.0365064",
      "payMethod":"Routex",
      "mail":"",
      "gasStationName":"BP",
      "fax":"",
      "clubCard":"",
      "openingHours":[
     {
        "beginn":"06:00",
        "day":{
           "dayLabel":"Sonntag",
           "order":7,
           "errorItems":[

           ],
           "errorCode":0,
           "day":"SO"
        },
        "end":"22:00"
     },
     {
        "beginn":"06:00",
        "day":{
           "dayLabel":"Mittwoch",
           "order":3,
           "errorItems":[

           ],
           "errorCode":0,
           "day":"MI"
        },
        "end":"22:00"
     },
     {
        "beginn":"06:00",
        "day":{
           "dayLabel":"Feiertag",
           "order":8,
           "errorItems":[

           ],
           "errorCode":0,
           "day":"FE"
        },
        "end":"22:00"
     },
     {
        "beginn":"06:00",
        "day":{
           "dayLabel":"Montag",
           "order":1,
           "errorItems":[

           ],
           "errorCode":0,
           "day":"MO"
        },
        "end":"22:00"
     },
     {
        "beginn":"06:00",
        "day":{
           "dayLabel":"Donnerstag",
           "order":4,
           "errorItems":[

           ],
           "errorCode":0,
           "day":"DO"
        },
        "end":"22:00"
     },
     {
        "beginn":"06:00",
        "day":{
           "dayLabel":"Freitag",
           "order":5,
           "errorItems":[

           ],
           "errorCode":0,
           "day":"FR"
        },
        "end":"22:00"
     },
     {
        "beginn":"06:00",
        "day":{
           "dayLabel":"Samstag",
           "order":6,
           "errorItems":[

           ],
           "errorCode":0,
           "day":"SA"
        },
        "end":"22:00"
     },
     {
        "beginn":"06:00",
        "day":{
           "dayLabel":"Dienstag",
           "order":2,
           "errorItems":[

           ],
           "errorCode":0,
           "day":"DI"
        },
        "end":"22:00"
     }
      ],
      "access":"",
      "url":"",
      "serviceText":"gratis Staubsaugen",
      "maestro":true,
      "companionship":false,
      "address":"Salzburger Str. 11",
      "club":false,
      "errorCode":1,
      "service":false,
      "latitude":"48.2546591",
      "bar":true,
      "telephone":""
   },
   {
      "kredit":true,
      "self":false,
      "spritPrice":[
     {
        "amount":"1.334",
        "datAnounce":"2013-11-27 12:40:18",
        "errorItems":[

        ],
        "errorCode":0,
        "datValid":1385552418000,
        "spritId":"DIE"
     }
      ],
      "automat":true,
      "city":"Braunau",
      "open":true,
      "distance":2.42,
      "postalCode":"5280",
      "errorItems":[

      ],
      "priceSearchDisabled":false,
      "longitude":"13.048711",
      "payMethod":"Novofleet",
      "mail":"office@fetrading.at",
      "gasStationName":"FE-Trading GmbH ",
      "fax":"4362467223611",
      "clubCard":"",
      "openingHours":[
     {
        "beginn":"06:00",
        "day":{
           "dayLabel":"Montag",
           "order":1,
           "errorItems":[

           ],
           "errorCode":0,
           "day":"MO"
        },
        "end":"21:00"
     },
     {
        "beginn":"06:00",
        "day":{
           "dayLabel":"Donnerstag",
           "order":4,
           "errorItems":[

           ],
           "errorCode":0,
           "day":"DO"
        },
        "end":"21:00"
     },
     {
        "beginn":"06:00",
        "day":{
           "dayLabel":"Dienstag",
           "order":2,
           "errorItems":[

           ],
           "errorCode":0,
           "day":"DI"
        },
        "end":"21:00"
     },
     {
        "beginn":"06:00",
        "day":{
           "dayLabel":"Samstag",
           "order":6,
           "errorItems":[

           ],
           "errorCode":0,
           "day":"SA"
        },
        "end":"21:00"
     },
     {
        "beginn":"08:00",
        "day":{
           "dayLabel":"Sonntag",
           "order":7,
           "errorItems":[

           ],
           "errorCode":0,
           "day":"SO"
        },
        "end":"18:00"
     },
     {
        "beginn":"08:00",
        "day":{
           "dayLabel":"Feiertag",
           "order":8,
           "errorItems":[

           ],
           "errorCode":0,
           "day":"FE"
        },
        "end":"18:00"
     },
     {
        "beginn":"06:00",
        "day":{
           "dayLabel":"Freitag",
           "order":5,
           "errorItems":[

           ],
           "errorCode":0,
           "day":"FR"
        },
        "end":"21:00"
     },
     {
        "beginn":"06:00",
        "day":{
           "dayLabel":"Mittwoch",
           "order":3,
           "errorItems":[

           ],
           "errorCode":0,
           "day":"MI"
        },
        "end":"21:00"
     }
      ],
      "access":"",
      "url":"http://www.fe-trading.at",
      "serviceText":"",
      "maestro":true,
      "companionship":false,
      "address":"Hofer Straße 1 (\" Hofer Parkplatz\")",
      "club":false,
      "errorCode":1,
      "service":false,
      "latitude":"48.244911",
      "bar":false,
      "telephone":"4362467223634"
   }
]

这会奏效的

try{
JSONArray json = new JSONArray(str);
for(int i = 0; i< json.length();i++)
{
    JSONObject c1 = (JSONObject) json.get(i);
    JSONArray spritPrice = c1.getJSONArray("spritPrice");
    for (int j = 0; j < spritPrice.length(); j++)
    {
        JSONObject c2 = (JSONObject) spritPrice.get(j);
        String amount = c2.getString("amount");
        System.out.println(amount);
    }
}}catch (JSONException e){
e.printStackTrace();}

试试看{
JSONArray json=新JSONArray（str）；
for（int i=0；i
我只能给你一个如何做的参考。是的，请。如果你发布了错误的JSON响应，那就太好了。更新你的JSON字符串检查本教程的参考资料否，这是我真正得到的。它只是一个更长的字符串，有更多的spritprice。但就是这样。它不会改变任何东西。稍后你可以从ArrayList访问所有价格。对于e.g String price1=prices.get（0）；String price2=prices.get（1）；但它仍然是第一个价格以后您可以从ArrayList访问所有价格。例如，String price1=prices.get（0）；String price2=prices.get（1）；没有。只有第一个价格。循环结束于第一个
spritPrice
它给了我第一个价格的10倍。很好。我改变了一些东西。现在它工作了。我编辑了你的帖子，然后我接受了它。
try{
JSONArray json = new JSONArray(str);
for(int i = 0; i< json.length();i++)
{
    JSONObject c1 = (JSONObject) json.get(i);
    JSONArray spritPrice = c1.getJSONArray("spritPrice");
    for (int j = 0; j < spritPrice.length(); j++)
    {
        JSONObject c2 = (JSONObject) spritPrice.get(j);
        String amount = c2.getString("amount");
        System.out.println(amount);
    }
}}catch (JSONException e){
e.printStackTrace();}