从HTML响应中提取数据-Android

Question

In my Android app, I am accessing a website using GET requests to its API. The request returns an HTML file with a variety of user information. From this, I want to know how to extract user data, such as their profile pictures, their data and such. I would like to know how I could access and retrieve this data to display in my app.

Any help will be greatly appreciated.

Thanks in advance.

Answer 1

If you just want to be able to access the data you could get the api to output in in JSON format and read the JSON from your app, something like:

public void getData(){

          String result = "";



          //http post

          try{
                 HttpClient httpclient = new DefaultHttpClient();
                 HttpPost httppost = new HttpPost("http://website.com/download.html");
                 HttpResponse response = httpclient.execute(httppost);
                 HttpEntity entity = response.getEntity();
                 InputStream is = entity.getContent();

                  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", "Error converting result "+e.toString());
          }



          //parse json data

          try{
                JSONArray jArray = new JSONArray(result);
                  for(int i=0;i<jArray.length();i++){
                          JSONObject json_data = jArray.getJSONObject(i);
                          names.add("   " + json_data.getString("name"));
                          age.add("   " + Integer.toString(json_data.getInt("age")));

                  }

          }catch(JSONException e){
                  Log.e("log_tag", "Error parsing data "+e.toString());

          }
}

Answer 2

The easiest way to go for HTML Parsing to extract and manipulate the data then go for JSoup ......

See this link for more details:

http://jsoup.org/

Answer 3

最简单的方法是在WebView中显示HTML数据。