Question

我正在开发一款基于Android的应用程序，可与Google Cloud进行交互。我需要将图片上传到云端。我已经为PHP + Android开发了代码，但我不确定如何在Google Cloud（JAVA）中处理它。

Android代码：

public void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (resultCode == RESULT_OK) {
        if (requestCode == SELECT_PICTURE) {


            Uri selectedImageUri = data.getData();
            String selectedImagePath = getPath(selectedImageUri);

            InputStream is;
            BitmapFactory.decodeFile(data.getData().toString());
            Bitmap bitmapOrg = BitmapFactory.decodeFile(selectedImagePath); //BitmapFactory.decodeResource(getResources(),R.drawable.gallery);
            ByteArrayOutputStream bao = new ByteArrayOutputStream();
            bitmapOrg.compress(Bitmap.CompressFormat.JPEG, 90, bao);
            byte [] ba = bao.toByteArray();
            String ba1 = Base64.encodeToString(ba, 1);
            ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
            nameValuePairs.add(new BasicNameValuePair("image",ba1));
            try{
                HttpClient httpclient = new DefaultHttpClient();
                httpclient.getParams().setParameter(CoreProtocolPNames.USER_AGENT, "Custom user agent");
                HttpPost httppost = new
                HttpPost("http://umair-p.appspot.com/imageupload");
                httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
                HttpResponse response = httpclient.execute(httppost);
                HttpEntity entity = response.getEntity();
                is = entity.getContent();
                Toast.makeText(Main.this, is.toString(), Toast.LENGTH_LONG).show();
                //Toast.makeText(Main.this, "Picture Shared", Toast.LENGTH_LONG).show();
            }
            catch(Exception e){
                Toast.makeText(Main.this, "Exception: " + e.toString(), Toast.LENGTH_LONG).show();
            }

            //Toast.makeText(Main.this, data.getData().toString(), Toast.LENGTH_SHORT).show();
        }
    }
}

PHP代码（工作正常）：

<?php
$base=$_REQUEST['image'];
echo $base;
// base64 encoded utf-8 string
$binary=base64_decode($base);
// binary, utf-8 bytes
header('Content-Type: bitmap; charset=utf-8');
// print($binary);
//$theFile = base64_decode($image_data);
$file = fopen('test.jpg', 'wb');
fwrite($file, $binary);
fclose($file);
echo '<img src=test.jpg>';
?>

上述解决方案工作正常，但我需要将图片上传到Google Cloud。有什么帮助吗？

Answer 1

您需要从AppEngine应用程序生成上传URL。

首先，执行HTTP GET到http://umair-p.appspot.com/imageupload

然后，在服务器上，调用blobstoreService.createUploadUrl（“/ imageupload”）。返回在HTTP响应中生成的URL。

最后，Android应用程序从响应中读取URL并在HTTP POST请求中使用它来上传图像。

如何将图像从Android上传到Google Cloud（Java）？

1 个答案: