Android 如何抓取網頁內容(get website content)

woff

當我想抓取網頁某個位置的的內容的時候
需要先讀取出該網頁內容
google找了許久
終於測試成功code
當然在貼上代碼之前
請先確認你的ANDROID XML網路連接程式代碼有加入

1. public void onCreate(Bundle savedInstanceState) {
   
2.     super.onCreate(savedInstanceState);
   
3.     new HttpTask().execute("http://www.google.com");
   
4. }
   
5. 
   
6. 
   
7. public String getWebPage(String adresse) {
   
8. 
   
9.     HttpClient httpClient = new DefaultHttpClient();
   
10.     HttpGet httpGet = new HttpGet();
    
11. 
    
12.     InputStream inputStream = null;
    
13. 
    
14.     String response = null;
    
15. 
    
16.     try {
    
17. 
    
18.         URI uri = new URI(adresse);
    
19.         httpGet.setURI(uri);
    
20. 
    
21.         HttpResponse httpResponse = httpClient.execute(httpGet);
    
22.         int statutCode = httpResponse.getStatusLine().getStatusCode();
    
23.         int length = (int) httpResponse.getEntity().getContentLength();
    
24. 
    
25.         Log.d("main", "HTTP GET: " + adresse);
    
26.         Log.d("main", "HTTP StatutCode: " + statutCode);
    
27.         Log.d("main", "HTTP Lenght: " + length + " bytes");
    
28. 
    
29.         inputStream = httpResponse.getEntity().getContent();
    
30.         Reader reader = new InputStreamReader(inputStream, "UTF-8");
    
31. 
    
32.         int inChar;
    
33.         StringBuffer stringBuffer = new StringBuffer();
    
34. 
    
35.         while ((inChar = reader.read()) != -1) {
    
36.             stringBuffer.append((char) inChar);
    
37.         }
    
38. 
    
39.         response = stringBuffer.toString();
    
40. 
    
41.     } catch (ClientProtocolException e) {
    
42.         Log.d("main", "HttpActivity.getPage() ClientProtocolException error", e);
    
43.     } catch (IOException e) {
    
44.         Log.d("main", "HttpActivity.getPage() IOException error", e);
    
45.     } catch (URISyntaxException e) {
    
46.         Log.d("main", "HttpActivity.getPage() URISyntaxException error", e);
    
47.     } finally {
    
48.         try {
    
49.             if (inputStream != null)
    
50.                 inputStream.close();
    
51. 
    
52.         } catch (IOException e) {
    
53.             Log.e(LOG_THREAD_ACTIVITY, "HttpActivity.getPage() IOException error lors de la fermeture des flux", e);
    
54.         }
    
55.     }
    
56. 
    
57.     return response;
    
58. }
    
59. 
    
60. private class HttpTask extends AsyncTask<String, Integer, String> {
    
61. 
    
62.     @Override
    
63.     protected String doInBackground(String... urls) {
    
64.         // TODO Auto-generated method stub
    
65.         String response = getWebPage(urls[0]);
    
66.         return response;
    
67.     }
    
68. 
    
69.     @Override
    
70.     protected void onPostExecute(String response) {
    
71.         Log.d("main", "HTTP RESPONSE" + response);
    
72.         //tv1.setText(response);
    
73.     }
    
74. 
    
75.     @Override
    
76.     protected void onPreExecute() {
    
77.         // TODO Auto-generated method stub
    
78.         super.onPreExecute();
    
79.     }
    
80. 
    
81.     @Override
    
82.     protected void onProgressUpdate(Integer... values) {
    
83.         // TODO Auto-generated method stub
    
84.         super.onProgressUpdate(values);
    
85.     }
    
86. 
    
87. }
    

複製代碼

參考文章http://stackoverflow.com/questio ... site-in-android-app