如何从这个 JSONString 解析？答案

【问题标题】：How to parse from this JSONString?如何从这个 JSONString 解析？
【发布时间】：2013-11-27 12:41:23
【问题描述】：

我通过HTTP Request 得到以下JSONString。我想要这个字符串中的所有amount 值。

到目前为止我已经尝试过了：

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();
    }

这适用于第一个spritPrice Array。但是我怎样才能得到另一个spritPrice Array 的amounts 呢？

我真的不知道如何实现这一点。谁能帮帮我。

这是我的完整 JSON 字符串的链接：>>This<<

[{"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":"Mittoch","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","订单":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":"Mittoch","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,"纬度":"48.244911","bar":false,"电话":"4362467223634"}]

【问题讨论】：

我只能参考你是怎么做的
请。会很棒
您发布了错误的 JSON 响应。更新您的 JSON 字符串
androidhive.info/2012/01/android-json-parsing-tutorial查看本教程以获取参考
不，这是我真正得到的。它只是一个更长的字符串，具有更多的 spritPrices。但就是这样。

标签： java android json http

【解决方案1】：

这会起作用。

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();}

【讨论】：

【解决方案2】：

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();
            }

【讨论】：

它给了我10倍的第一个价格。
不错。我改变了一些东西。现在它正在工作。我编辑了你的帖子，然后我接受了。

【解决方案3】：

不只是取String，还取ArrayList或List并添加每个价格。

这样，

 ArrayList<String> prices=new ArrayList<String>

在循环中编写以下代码。

 String amount = c.getString("amount");
 prices.add(amount);

如果您有任何进一步的疑问，您可以询问:)

【讨论】：

它不会改变任何东西。
稍后您可以访问 ArrayList.for 中的所有价格，例如 String price1=prices.get(0);字符串 price2=prices.get(1);
不过还是第一价
稍后您可以访问 ArrayList.for 中的所有价格，例如 String price1=prices.get(0);字符串 price2=prices.get(1);
没有。只有第一个价格。循环结束于第一个spritPrice

【解决方案4】：

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"
     }
  ],

您的根元素必须是JSONArray，而不是JSONObject。

一个好的链接：http://jsonformatter.curiousconcept.com/

它表明你的 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"
   }
]

【讨论】：

【解决方案5】：

这可能对你有帮助...

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
    }
}

只需将字符串响应传递给 loadAmountFrom(String) 方法...

【讨论】：

【解决方案6】：

这就是我从 jsonarray 获取字符串的方式，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();
}

【讨论】：