使用Android的HTTPS從Facebook Graph API下載圖像時出錯

由於證書錯誤，我無法使用HTTPS協議下載圖像。這發生了幾個星期或更長的時間，在此之前，我沒有任何問題。使用Android的HTTPS從Facebook Graph API下載圖像時出錯

如果我使用HttpCommons Apache庫，錯誤是「主機名證書不匹配」，如果我使用URL和URLConnection，則例外是「證書未驗證」。

我很絕望，因爲我需要完成這項工作來完成我的項目，而我所測試的所有項目都無法工作。

這是Apache的庫中的代碼：

HttpClient client = new DefaultHttpClient(); 

HttpGet get = new HttpGet(url); 

try 
{ 
    HttpResponse response = client.execute(get); 
    if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) 
    { 
     HttpEntity entity = response.getEntity(); 
     if (entity != null) 
     { 
      try 
      { 
       byte[] data = EntityUtils.toByteArray(entity); 
       bitmap = BitmapFactory.decodeByteArray(data, 0, data.length); 
       //bitmap = BitmapFactory.decodeStream(entity.getContent()); 
      } catch (IOException e) 
      { 
       e.printStackTrace(); 
       Log.e("FACEBOOKLIBRARY", "Error fetching image from this URL: " + url 
         + "because of the download is corrupted"); 
       bitmap = null; 
      } finally 
      { 
       entity.consumeContent(); 
      } 
     } 
    } 
    else 
    { 
     Log.e("FACEBOOKLIBRARY", "Error fetching image from this URL: " + url 
       + " because of the error: " + response.getStatusLine().toString()); 
     bitmap = null; 
    } 
} catch (IOException e) 
{ 
    e.printStackTrace(); 
    Log.e("FACEBOOKLIBRARY", "Error fetching image while connecting to this URL: " + url); 
    bitmap = null; 
} 

return bitmap;

這是URL代碼：

try { 
    URL u = new URL(url); 
    URLConnection connection = u.openConnection(); 
    InputStream is = connection.getInputStream(); 
    BufferedInputStream bis = new BufferedInputStream(is); 

    ByteArrayBuffer baf = new ByteArrayBuffer(50); 
    int current = 0; 
    while((current = bis.read()) != -1) { 
     baf.append(current); 
    } 
    byte[] byteArray = baf.toByteArray(); 
    bitmap = BitmapFactory.decodeByteArray(byteArray, 0, byteArray.length); 
} catch (MalformedURLException e) { 
    // TODO Auto-generated catch block 
    e.printStackTrace(); 
    bitmap = null; 
} catch (IOException e) { 
    // TODO Auto-generated catch block 
    e.printStackTrace(); 
    bitmap = null; 
}

來源

2011-05-21 Adrian

最後我不得不停用主機名檢查HttpClient的這樣做：

HttpClient client = new DefaultHttpClient(); 

SSLSocketFactory sf = (SSLSocketFactory) client.getConnectionManager().getSchemeRegistry().getScheme("https").getSocketFactory(); 
sf.setHostnameVerifier(new AllowAllHostnameVerifier());

來源

2011-06-13 11:38:30 Adrian

使用Android的HTTPS從Facebook Graph API下載圖像時出錯

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