Question

由于证书错误，我无法使用HTTPS协议下载图像。这种情况发生在几周或更长时间，在此之前，我没有任何问题。

如果我使用HttpCommons Apache库，则错误是“主机名证书不匹配”，如果我使用URL和URLConnection，则例外是“证书未经过验证”。

我很绝望，因为我需要完成这项工作才能完成我的项目，而且我测试的所有项目都没有用。

这是Apache库的代码：

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;

这是网址代码：

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;
}

Answer 1

我最终不得不停用主机名检查HttpClient执行此操作：

HttpClient client = new DefaultHttpClient();

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

使用HTTPS与Android从Facebook Graph API下载图像时出错

1 个答案: