Android上传图片到GCS
Android上传图片到GCS
提问于 2013-08-02 02:56:24
我正在尝试从Android直接将图像上传到Google云存储。但是API似乎不起作用。他们有一些与App引擎捆绑在一起的Java示例。我没有看到任何被证明可以在Android上工作的示例。
在Android上，我尝试使用json api上传图片。我可以上传图像对象，但它似乎已损坏。此外，生成身份验证令牌似乎也很棘手。
我现在对此感到震惊。这个世界上有没有人尝试过使用Java客户端或Json API从Android上传图像/视频并成功？有人能告诉我怎么走吗？使用Google的这个Storage api是非常令人失望的体验。如果有人这样做了，请分享你的经验。下面是我试图使用GCS的JSON API时在Android上尝试的代码。
private static String uploadFile(RichMedia media) {
DefaultHttpClient client = new DefaultHttpClient();
Bitmap bitmap = BitmapUtils.getBitmap(media.getLocalUrl());
HttpPost post = new HttpPost(GCS_ROOT + media.getLocalUrl() + "_" + System.currentTimeMillis());
if(media.getType() == RichMedia.RichMediaType.PICTURE) {
post.setHeader("Content-Type", "image/jpeg");
} else {
post.setHeader("Content-Type", "video/mp4");
}
post.setHeader("Authorization", "AIzaSyCzdmCMwiMzl6LD7R2obF0xSgnnx5rEfeI");
//post.setHeader("Content-Length", String.valueOf(bitmap.getByteCount()));
ByteArrayOutputStream stream = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, stream);
byte[] byteArray = stream.toByteArray();
try {
post.setEntity(new StringEntity(new Gson().toJson(byteArray).toString()));
HttpResponse response = client.execute(post);
BufferedReader reader = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
String eachLine = null;
StringBuilder builder = new StringBuilder();
while ((eachLine = reader.readLine()) != null) {
builder.append(eachLine);
}
L.d("response = " + builder.toString());
JSONObject object = new JSONObject(builder.toString());
String name = object.getString("name");
return name;
} catch (IOException e) {
L.print(e);
} catch (JSONException e) {
L.print(e);
}
return null;
}我在这里遇到了两个问题。
- 上传到服务器的文件已损坏。这不是我上传的同一张图片。
- 授权密钥经常过期。在我的例子中，我使用的是gsutil生成的验证码。
回答 6
Stack Overflow用户
回答已采纳
发布于 2013-09-02 17:55:08
由于没有人回答这个问题，让我更新一下我解决这个问题的方法。我最终关注了这个https://github.com/pliablematter/simple-cloud-storage项目。
我可以通过我的Android应用程序将图片/视频上传到GCS。
Stack Overflow用户
发布于 2014-11-09 14:26:28
Android修复：
Android Studio配置：
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile files('libs/android-support-v4.jar')
compile files('google-play-services.jar')
compile 'com.wu-man:android-oauth-client:0.0.3'
compile 'com.google.apis:google-api-services-storage:v1-rev17-1.19.0'
compile(group: 'com.google.api-client', name: 'google-api-client', version:'1.19.0'){
exclude(group: 'com.google.guava', module: 'guava-jdk5')
}
}AndroidManifiest：
<uses-permission android:name="android.permission.INTERNET"></uses-permission>
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"></uses-permission>主要实现：
new AsyncTask(){
@Override
protected Object doInBackground(Object[] params) {
try {
CloudStorage.uploadFile("bucket-xxx", "photo.jpg");
} catch (Exception e) {
if(DEBUG)Log.d(TAG, "Exception: "+e.getMessage());
e.printStackTrace();
}
return null;
}
}.execute();CloudStorage类：
import com.google.api.services.storage.Storage;
import com.google.api.services.storage.StorageScopes;
import com.google.api.services.storage.model.Bucket;
import com.google.api.services.storage.model.StorageObject;
public static void uploadFile(String bucketName, String filePath)throws Exception {
Storage storage = getStorage();
StorageObject object = new StorageObject();
object.setBucket(bucketName);
File sdcard = Environment.getExternalStorageDirectory();
File file = new File(sdcard,filePath);
InputStream stream = new FileInputStream(file);
try {
String contentType = URLConnection.guessContentTypeFromStream(stream);
InputStreamContent content = new InputStreamContent(contentType,stream);
Storage.Objects.Insert insert = storage.objects().insert(bucketName, null, content);
insert.setName(file.getName());
insert.execute();
} finally {
stream.close();
}
}
private static Storage getStorage() throws Exception {
if (storage == null) {
HttpTransport httpTransport = new NetHttpTransport();
JsonFactory jsonFactory = new JacksonFactory();
List<String> scopes = new ArrayList<String>();
scopes.add(StorageScopes.DEVSTORAGE_FULL_CONTROL);
Credential credential = new GoogleCredential.Builder()
.setTransport(httpTransport)
.setJsonFactory(jsonFactory)
.setServiceAccountId(ACCOUNT_ID_PROPERTY) //Email
.setServiceAccountPrivateKeyFromP12File(getTempPkc12File())
.setServiceAccountScopes(scopes).build();
storage = new Storage.Builder(httpTransport, jsonFactory,
credential).setApplicationName(APPLICATION_NAME_PROPERTY)
.build();
}
return storage;
}
private static File getTempPkc12File() throws IOException {
// xxx.p12 export from google API console
InputStream pkc12Stream = AppData.getInstance().getAssets().open("xxx.p12");
File tempPkc12File = File.createTempFile("temp_pkc12_file", "p12");
OutputStream tempFileStream = new FileOutputStream(tempPkc12File);
int read = 0;
byte[] bytes = new byte[1024];
while ((read = pkc12Stream.read(bytes)) != -1) {
tempFileStream.write(bytes, 0, read);
}
return tempPkc12File;
}Stack Overflow用户
发布于 2014-03-25 03:22:04
这段代码对我来说非常适合直接从Android上传文件到GCS。
File file = new File(Environment.getExternalStorageDirectory(), fileName);
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(url);
FileBody filebody = new FileBody(file,ContentType.create(mimeType), file.getName());
MultipartEntityBuilder multipartEntity = MultipartEntityBuilder.create();
multipartEntity.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);
multipartEntity.addPart("file", filebody);
httppost.setEntity(multipartEntity.build());
System.out.println( "executing request " + httppost.getRequestLine( ) );
try {
HttpResponse response = httpclient.execute( httppost );
Log.i("response", response.getStatusLine().toString());
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
httpclient.getConnectionManager( ).shutdown( );MultipartEntityBuilder类没有包含在安卓标准库中，所以您需要下载httpclient并将其包含到您的项目中。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/18002293
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