在Android中發送POST數據並更改網站

Question

我想通過在我的webview中發帖登錄到網站。這工作正常，但如果我點擊這個網站上的按鈕，我會重定向回登錄頁面。我怎樣才能保存登錄，所以我需要再次登錄？我應該使用Cookie來解決問題嗎？我已經嘗試過使用Cookie，但沒有解決問題。

@Override 
public void onCreate(Bundle savedInstanceState) { 

    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 
    CookieSyncManager.createInstance(MainActivity.this); 
    CookieSyncManager.getInstance().sync(); 

} 

private class LoadWebPageASYNC extends AsyncTask<String, Void, String> { 

    @Override 
    protected String doInBackground(String... urls) { 
     String result = ""; 


      // Create a new HttpClient and Post Header 
      HttpClient httpclient = new DefaultHttpClient(); 
      HttpPost httppost = new HttpPost("http://example/index.php?s=login"); 

      try { 
       CookieManager cookieManager = CookieManager.getInstance(); 
       cookieManager.setAcceptCookie(true); 

       List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(3); 
       nameValuePairs.add(new BasicNameValuePair("id", "id")); 
       nameValuePairs.add(new BasicNameValuePair("pass", "pass")); 
       nameValuePairs.add(new BasicNameValuePair("submit", "login")); 
       httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs)); 


       // Execute HTTP Post Request 
       HttpResponse response = httpclient.execute(httppost); 
       HttpEntity entity = response.getEntity(); 
       result = EntityUtils.toString(entity, "UTF-8"); 


      } catch (ClientProtocolException e) { 
       // TODO Auto-generated catch block 
      } catch (IOException e) { 
       // TODO Auto-generated catch block 
      } 



     return result; 
    } 




    @Override 
    protected void onPostExecute(String result) { 

     WebView webView = (WebView) findViewById(R.id.webView); 
     webView.setWebViewClient(new WebViewClient()); 
     webView.getSettings().setJavaScriptEnabled(true); 
     CookieManager.setCookie(); 
     webView.loadDataWithBaseURL("http://example/index.php?s=login", result, "text/html", "BASE64", null); 

    } 
} 

@Override 
public void onConfigurationChanged(Configuration newConfig) { 
    super.onConfigurationChanged(newConfig); 
} 

public void dummyFunc(View view){ 
    Toast.makeText(MainActivity.this, "Button works", Toast.LENGTH_SHORT).show(); 

} 

public void readWebpage(View view) { 
    LoadWebPageASYNC task = new LoadWebPageASYNC(); 
    task.execute(new String[] { "http://example/index.php?s=login" }); 

} 

}

Answer 1

是的，你必須使用cookie。