带有HTML标签的Android JSON解析 [英] Android JSON parsing with HTML tags
问题描述
我想使用JsonReader从android中<HTML>标记内的URL解析JSON.我已经尝试过关于Stackoverflow和Androud引用的多个示例，但是我不断收到org.json.JSONException: Value <!DOCTYPE错误或null pointer exception
I want to parse a JSON from a url that is inside <HTML> tags in android using JsonReader. I have tried multiple examples on Stackoverflow and Androud reference, but i keep getting org.json.JSONException: Value <!DOCTYPE error or null pointer exception
这是我要解析的URL:链接
This is the URL that i want to parse: Link
这是我使用此示例的代码:如何在Android中解析JSON
This is the code i have using this example: How to parse JSON in Android
我在getData类上得到nullpointexception
I am getting nullpointexception on getData class
JSON解析器类:
public class JSONParser
{
public String json = "";
public InputStream is = null;
public JSONObject jObj = null;
public JSONObject getJSON(String url)
{
try
{
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
} 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) {
e.printStackTrace();
}
// try parse the string to a JSON object
try {
jObj = new JSONObject(json);
} catch (JSONException e) {
e.printStackTrace();
}
// return JSON String
return jObj;
}
MapsActivity:
MapsActivity:
private void setUpMap()
{
new getData().execute();
}
class getData extends AsyncTask<String, String, String>
{
@Override
protected String doInBackground(String... params)
{
JSONParser jsonParser = new JSONParser();
JSONObject json = jsonParser.getJSON(url);
try
{
String id = json.getString("ID");
String name = json.getString("Name");
long lat = json.getLong("Lat");
long lng = json.getLong("Long");
String sms = json.getString("Sms");
}
catch (JSONException e)
{
e.printStackTrace();
}
return null;
}
}
推荐答案
I used this method to strip the HTML from the JSON responsehtml: How to strip or escape html tags in Android
public String stripHtml(String html)
{
return Html.fromHtml(html).toString();
}
然后检索了JSONArray而不是对象
Then retrieved a JSONArray instead of an Object
HttpEntity entity = response.getEntity();
String data = EntityUtils.toString(entity);
String noHTML = stripHtml(data);
JSONArray jsonArray = new JSONArray(noHTML);
for(int i = 0; i < jsonArray.length(); i++)
{
StopInfo stops = new StopInfo();
JSONObject jsonObject = jsonArray.getJSONObject(i);
stops.id = jsonObject.getString("ID");
stops.name = jsonObject.getString("Name");
stops.lat = jsonObject.getLong("Lat");
stops.lng = jsonObject.getLong("Long");
stops.sms = jsonObject.getString("Sms");
stopArrayList.add(stops);
}
这篇关于带有HTML标签的Android JSON解析的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
