我尝试使用亚马逊S3安卓库上传用照相机拍摄的照片时遇到问题。
保存图片
File _photoFile = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM), (cal.getTimeInMillis() + ".jpg"));
try {
if (_photoFile.exists() == false) {
_photoFile.getParentFile().mkdirs();
_photoFile.createNewFile();
}
} catch (IOException e) {
// Log.e(TAG, "Could not create file.", e);
}
// Log.i(TAG, path);
filePath = Uri.fromFile(_photoFile);
Intent cameraIntent = new Intent(
android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
cameraIntent.putExtra(MediaStore.EXTRA_OUTPUT, filePath);
startActivityForResult(cameraIntent, 1);
使用filePath上传图片:
try {
s3Client.createBucket(Constants.getPictureBucket());
// Content type is determined by file extension.
PutObjectRequest por = new PutObjectRequest(
Constants.getPictureBucket(), Constants.PICTURE_NAME,
new java.io.File(filePath));
s3Client.putObject(por);
} catch (Exception exception) {
result.setErrorMessage(exception.getMessage());
}
我一直收到错误Unable to calclualte MD5 hash:/file:/storage/sdcard0/DCIM/13161272646580.jpg open failed:ENOENT (No such file or directory)
但是当我浏览我的SD卡目录时,我可以在那里找到图片(图片已经创建),并且我已经创建了相关的权限。
答案 0 :(得分:2)
问题出在文件路径中。使用这样的方法来获得真实路径。
如果您从onActivityResult()获取图像,我举个例子 您应该有一个onActivityResult(int requestCode,int resultCode,Intent data),您可以在其中获取图像的Uri。
Uri uri = data.getData();
然后你使用它并从Uri获取真实路径并将其传递给PutObjectRequest(BUCKET_NAME,IMAGE_NAME,REAL_PATH);
public String getRealPathFromURI(Context context, Uri contentUri) {
Cursor cursor = null;
try {
String[] proj = { MediaStore.Images.Media.DATA };
cursor = context.getContentResolver().query(contentUri, proj, null, null, null);
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
return cursor.getString(column_index);
} finally {
if (cursor != null) {
cursor.close();
}
}
}
我有同样的问题,我这样做就解决了。希望它有所帮助!
答案 1 :(得分:1)
我真的不记得我做了什么。但这是我使用的代码。希望它可以帮助你们!
AmazonS3Client s3Client = new AmazonS3Client(new BasicAWSCredentials("XXX", "XXX"));
String time = "" + System.currentTimeMillis();
PutObjectRequest por = new PutObjectRequest("fraternity", xyz_url_xyz + "/avatar" + time + ".jpg", new java.io.File(params[0]));
por.setCannedAcl(CannedAccessControlList.PublicRead);
s3Client.putObject(por);
ResponseHeaderOverrides override = new ResponseHeaderOverrides();
override.setContentType("image/jpeg");
GeneratePresignedUrlRequest urlRequest = new GeneratePresignedUrlRequest("xyz_url_xyz/avatar.jpg");
urlRequest.setExpiration(new Date(System.currentTimeMillis() + 3600000));
urlRequest.setResponseHeaders( override );
s3Client.generatePresignedUrl(urlRequest);