Question

可能重复：
How can I parse this JSON in Android?

我跟着这个link来解析我的json，但我无法表现，因为我很困惑。甚至重复链接也没有提供任何参考，那些投票关闭此问题的用户可以在他们提供的LINK没有提供任何帮助来解决这些问题时回答我的问题？

我认为那些无法回答问题的人没有权利编辑某个人的问题，也没有权利在他们提供的链接没有提供任何解决方案时提出问题。帮我解析数据。

[
{
"id": "c200",
"name": "XYZ",
"email": "xyz@gmail.com",
},
{
"id": "c201",
"name": "Johnny",
"email": "john_johnny@gmail.com",

}]

[ANSWER]

由于这是一个封闭的帖子所以我发布了我的答案：

//JSONArray
JSONArray hospital = null;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    // Hashmap for ListView
    ArrayList<HashMap<String, String>> contactList = new ArrayList<HashMap<String, String>>();

    // Creating JSON Parser instance
    JSONParser jParser = new JSONParser();

     // getting JSON string from URL
    String json = jParser.makeHttpRequest(url, "GET",
            contactList);

    try {
        // Getting Array of Contacts
          hospital = new JSONArray(json);

          if (hospital != null) {

            // looping through
                for (int i = 0; i < hospital.length(); i++) {
                    JSONObject contacts = hospital.getJSONObject(i);

            // Storing each json item in variable
            String id = contacts.getString(TAG_HID);
            String name = contacts.getString(TAG_HNAME);
            String address = contacts.getString(TAG_HADDRESS);
            String phone1=contacts.getString(TAG_HPHONE1);
            String phone2=contacts.getString(TAG_HPHONE2);
            String fax=contacts.getString(TAG_HFAX);
            String email=contacts.getString(TAG_HEMAIL);
            String url=contacts.getString(TAG_URL);
            String hlongitude=contacts.getString(TAG_LONGITUDE);
            String hlatitude=contacts.getString(TAG_LATITUDE);
            String hdistance=contacts.getString(TAG_HDISTANCE);


            // creating new HashMap
            HashMap<String, String> map = new HashMap<String, String>();

            // adding each child node to HashMap key => value
            map.put(TAG_HID, id);
            map.put(TAG_HNAME, name);
            map.put(TAG_HADDRESS, address);
            map.put(TAG_HPHONE1, phone1);
            map.put(TAG_HPHONE2, phone2);
            map.put(TAG_HFAX, fax);
            map.put(TAG_HEMAIL, email);
            map.put(TAG_URL, url);
            map.put(TAG_LONGITUDE, hlongitude);
            map.put(TAG_LATITUDE, hlatitude);   
            map.put(TAG_HDISTANCE, hdistance);

            // adding HashList to ArrayList
            contactList.add(map);
        }
    } 
    }
    catch (JSONException e) {
        e.printStackTrace();
    }

JSON Parser类的一些编码

public class JSONParser {

static InputStream is = null;
static JSONObject jObj = null;
static String json = "";

// constructor
public JSONParser() {

}

// function get json from url
// by making HTTP POST or GET method
public String makeHttpRequest(String url, String method,
        ArrayList<HashMap<String, String>> contactList) {

    // Making HTTP request
    try {

        // check for request method
        if (method == "POST") {
            // request method is POST
            // defaultHttpClient
            DefaultHttpClient httpClient = new DefaultHttpClient();
            HttpPost httpPost = new HttpPost(url);
            httpPost.setEntity(new UrlEncodedFormEntity((List<? extends NameValuePair>) contactList));

            HttpResponse httpResponse = httpClient.execute(httpPost);
            HttpEntity httpEntity = httpResponse.getEntity();
            is = httpEntity.getContent();

        } 
        else if (method == "GET") 
        {
            // request method is GET
            DefaultHttpClient httpClient = new DefaultHttpClient();
            String paramString = URLEncodedUtils.format((List<? extends NameValuePair>) contactList, "utf-8");
            url += "?" + paramString;
            HttpGet httpGet = new HttpGet(url);

            HttpResponse httpResponse = httpClient.execute(httpGet);
            HttpEntity httpEntity = httpResponse.getEntity();
            is = httpEntity.getContent();
        }

    } catch (UnsupportedEncodingException e) {
        e.printStackTrace();
    } 
    catch (ClientProtocolException e) {
        e.printStackTrace();
    } 
    catch (IOException e) {
        e.printStackTrace();
    }

    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();
        json = sb.toString();
    } catch (Exception e) {
        Log.e("Buffer Error", "Error converting result " + e.toString());
    }

    // return JSON String
    return json;

}
}

Answer 1

由于你没有说，我假设你正在使用Android附带的内置org.json解析器。如果您使用的是其他解析器，请参阅其文档。

将json作为字符串传递给JSONArray constructor。

在Android中解析此JSON

1 个答案: