在Android中使用JSON解析网站中的数组

我想从下面给出的数据中解析一个特定的数组，特别是Solar：

{
  "Month":
        {"1":"January",
         "2":"February",
         "3":"March",
         "4":"April",
         "5":"May",
         "6":"June",
         "7":"July",
         "8":"August",
         "9":"September",
         "10":"October",
         "11":"November",
         "12":"December"},
  "Air":
        {"1":"26.6",
         "2":"26.9",
         "3":"27.2",
         "4":"27.6",
         "5":"27.6",
         "6":"27.1",
         "7":"26.7",
         "8":"26.5",
         "9":"26.5",
         "10":"26.8",
         "11":"26.7",
         "12":"26.4"},
  "Humid":
        {"1":"79.5%",
         "2":"75.6%",
         "3":"75.8%",
         "4":"75.9%",
         "5":"77.5%",
         "6":"78.2%",
         "7":"79.0%",
         "8":"81.5%",
         "9":"80.5%",
         "10":"77.2%",
         "11":"76.7%",
         "12":"79.7%"},
  "Solar":
        {"1":"5.87",
         "2":"6.51",
         "3":"6.77",
         "4":"6.42",
         "5":"5.51",
         "6":"4.86",
         "7":"4.95",
         "8":"5.09",
         "9":"5.92",
         "10":"6.22",
         "11":"6.12",
         "12":"5.82"},
  "Atm":
        {"1":"101.1",
         "2":"101.1",
         "3":"101.1",
         "4":"101.0",
         "5":"101.0",
         "6":"101.0",
         "7":"101.1",
         "8":"101.1",
         "9":"101.2",
         "10":"101.2",
         "11":"101.2",
         "12":"101.2"},
  "Wind":
        {"1":"3.7",
         "2":"3.9",
         "3":"3.0",
         "4":"2.9",
         "5":"3.7",
         "6":"4.0",
         "7":"3.5",
         "8":"3.7",
         "9":"3.0",
         "10":"3.7",
         "11":"3.9",
         "12":"3.4"},
  "Earth":
        {"1":"28.5",
         "2":"28.6",
         "3":"29.3",
         "4":"30.0",
         "5":"29.9",
         "6":"29.5",
         "7":"29.3",
         "8":"29.0",
         "9":"29.1",
         "10":"28.9",
         "11":"28.5",
         "12":"28.4"},
  "HDD":
        {"1":"0",
         "2":"0",
         "3":"0",
         "4":"0",
         "5":"0",
         "6":"0",
         "7":"0",
         "8":"0",
         "9":"0",
         "10":"0",
         "11":"0",
         "12":"0"},
  "CDD":
        {"1":"514",
         "2":"477",
         "3":"532",
         "4":"529",
         "5":"545",
         "6":"511",
         "7":"516",
         "8":"509",
         "9":"495",
         "10":"519",
         "11":"502",
         "12":"509"}
}

我试图通过不同的教程了解如何做到这一点，但我似乎无法继续。我只需要提取

JSONArray

并将其转换为

字符串

数组，然后将这些值存储到变量中。现在，我能够做到这一点：

public JSONObject solardata() throws ClientProtocolException, IOException, JSONException {
    StringBuilder sb = new StringBuilder(URL);
    HttpGet get = new HttpGet(sb.toString());
    HttpResponse r = client.execute(get);
    int status = r.getStatusLine().getStatusCode();
    if (status == 200) {
        HttpEntity e = r.getEntity();

这之后我该怎么办？如何获取

JSONArray

谷歌是你的朋友。请先搜索再问。对“android httpget json”的简单搜索将提供大量示例。第一次击中，完全是你想要的

JSON中没有数组。它只是一个带有键和值的普通JSON对象

---

JSON数组应该是这样的-

{
    results:[
        elem1,
        elem2,
        ...
    ]
}

JSONObject jsonObj = new JSONObject(jsonString);
JSONArray jsonArray = jsonObj.getJSONArray("results");

for(int i = 0; i < jsonArray.length(); i ++) {
    JSONObject obj = jsonArray.getJSONObject(i);
    // Do whatever you need with obj
}

因此，首先，您必须确保获得的JSON格式符合您的预期。一旦您有了一个带有有效JSON数组的

字符串

，您就可以用类似这样的方法检索它-

{
    results:[
        elem1,
        elem2,
        ...
    ]
}

JSONObject jsonObj = new JSONObject(jsonString);
JSONArray jsonArray = jsonObj.getJSONArray("results");

for(int i = 0; i < jsonArray.length(); i ++) {
    JSONObject obj = jsonArray.getJSONObject(i);
    // Do whatever you need with obj
}

JSONObject jsonObj=新的JSONObject（jsonString）；
JSONArray JSONArray=jsonObj.getJSONArray（“结果”）；
for（int i=0；i

---

举个例子，你可以找到一大堆好的教程。

你可以通过以下方式完成：

   try {
                HttpClient httpclient = new DefaultHttpClient();
                HttpGet httpget = new HttpGet(url);
                HttpResponse response = httpclient.execute(httpget);
                HttpEntity entity = response.getEntity();
                is = entity.getContent();
                statusCode = response.getStatusLine().getStatusCode();

            } catch (Exception e) {
                statusCode = -1;
                Log.e("log_tag", "Erro http " + e.toString());
            }
if (statusCode == 200) {

            try {
                BufferedReader reader = new BufferedReader(new InputStreamReader(is, "iso-8859-1"), 8);
                StringBuilder sb = new StringBuilder();
                String line = null;
                while ((line = reader.readLine()) != null) {
                    sb.append(line + "\n");
                }
                is.close();
                result = sb.toString();
            } catch (Exception e) {
                Log.e("log_tag", "Erro conversão " + e.toString());
            }

            try {
            JSONObject json = new JSONObject(result);
            JSONArray monthsJSON = json.getJSONArray("Months");
            ArrayList<HashMap<String, String>> monthsList = new ArrayList<HashMap<String,String>>();
            for (int i = 0; i < monthsJSON.length(); i++) {
                JSONObject object = (JSONObject) monthsJSON.get(i);
                HashMap<String, String> data = new HashMap<String, String>();
                String index = String.valueOf(i+1);
                data.put(index, object.getString(index));
                monthsList.add(data);
            }

        } catch (JSONException e) {
                Log.e("log_tag", "Erro dados " + e.toString());
            }
        }

试试看{
HttpClient HttpClient=新的DefaultHttpClient（）；
HttpGet HttpGet=新的HttpGet（url）；
HttpResponse response=httpclient.execute（httpget）；
HttpEntity=response.getEntity（）；
is=entity.getContent（）；
statusCode=response.getStatusLine（）.getStatusCode（）；
}捕获（例外e）{
statusCode=-1；
e（“Log_标记”，“Erro http”+e.toString（））；
}
如果（状态代码==200）{
试一试{
BufferedReader reader=新的BufferedReader（新的InputStreamReader（is，“iso-8859-1”），8；
StringBuilder sb=新的StringBuilder（）；
字符串行=null；
而（（line=reader.readLine（））！=null）{
sb.追加（第+行“\n”）；
}
is.close（）；
结果=sb.toString（）；
}捕获（例外e）{
Log.e（“Log_标记”，“Erro conversão”+e.toString（））；
}
试一试{
JSONObject json=新的JSONObject（结果）；
JSONArray monthsJSON=json.getJSONArray（“月”）；
ArrayList MonthList=新建ArrayList（）；
for（int i=0；i

这是我的简单JSON

yourJson :
[
 {"id":"1","name":"Jhohannes H Purba","address":"Kabanjahe"},
 {"id":"2","name":"Berkat Junaidi Banurea","address":"Sidikalang"},
 {"id":"3","name":"Totok BluesMan Silalahi","address":"Medan"}
]

对于将字段插入数组，我使用

            JSONArray arrayJson = new JSONArray(yourJson);

            for (int i = 0; i < arrayLagu.length(); i++) {    
                JSONObject jsonChildNode = arrayLagu.getJSONObject(i);
                int id = jsonChildNode.optInt("id");
                String name = jsonChildNode.optString("name");
                String address = jsonChildNode.optString("address");

                arrayId.add(i, id);
                arrayJudul.add(i, name);
                arrayLirik.add(i, address);
            }

JSONArray arrayJson=新的JSONArray（yourJson）；
对于（int i=0；i

那么，告诉我如何提取键“Solar”及其值？我已经学习了很多教程，但我总是陷入困境，因为我没有JSON的基本概念。如果有人能在这方面帮助我，我将非常感谢他/她。除了那个月不是一个数组。你必须把它作为一个JSONObject，然后迭代键。我知道Month不是一个数组，但是我怎么能把它作为一个JSONObject，然后迭代呢？