Question

请告诉我如何获得 XML 标记所涵盖的 JSON 响应？

<string>[
  {
    "value": "America",
    "id": "1898"
  },
  {
    "value": "Afghanistan",
    "id": "546"
  },
  {
    "value": "China",
    "id": "119"
  },
  {
    "value": "Bhutan",
    "id": "1884"
  }
]<string>

Answer 1

嗨，请按以下方式找到解决方案，使用下面的代码

String jsonData = null;
    XmlPullParserFactory factory;
    try {
        factory = XmlPullParserFactory.newInstance();

        factory.setNamespaceAware(true);
        XmlPullParser xpp = factory.newPullParser();
        AssetManager manager = getAssets();
        InputStream stream;

        stream = manager.open("data.json");

         xpp.setInput(new StringReader (getStringFromInputStream(stream)));
        int eventType = xpp.getEventType();
        while (eventType != XmlPullParser.END_DOCUMENT) {
            if (eventType == XmlPullParser.START_DOCUMENT) {
                System.out.println("Start document");
            } else if (eventType == XmlPullParser.END_DOCUMENT) {
                System.out.println("End document");
            } else if (eventType == XmlPullParser.START_TAG) {
                System.out.println("Start tag " + xpp.getName());
            } else if (eventType == XmlPullParser.END_TAG) {
                System.out.println("End tag " + xpp.getName());
            } else if (eventType == XmlPullParser.TEXT) {
                System.out.println("Text " + xpp.getText());
                jsonData= xpp.getText();
            }
            eventType = xpp.next();
        }
    } catch (Exception e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    //parsing json
    try {
        JSONArray jarray=new JSONArray(jsonData);
        for(int i=0;i<jarray.length();i++){
            JSONObject jobject=jarray.getJSONObject(i);
            String value=jobject.getString("value");
            String id=jobject.getString("id");
            System.out.println("value " + value);
            System.out.println("id " + id);
        }
    } catch (JSONException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

getStringFromInputStream方法如下

private static String getStringFromInputStream(InputStream is) {

    BufferedReader br = null;
    StringBuilder sb = new StringBuilder();

    String line;
    try {

        br = new BufferedReader(new InputStreamReader(is));
        while ((line = br.readLine()) != null) {
            sb.append(line);
        }

    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        if (br != null) {
            try {
                br.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

    return sb.toString();

}

为了解决你的问题我只是把你的数据放在带有名称data.jason的资产文件夹中，以后你可以从网络服务中获取这些数据。

<string>[
  {
    "value": "America",
    "id": "1898"
  },
  {
    "value": "Afghanistan",
    "id": "546"
  },
  {
    "value": "China",
    "id": "119"
  },
  {
    "value": "Bhutan",
    "id": "1884"
  }
]<string>

如何获取XML标记涵盖的JSON响应？

1 个答案: