在 android 的 php 服务器上发布图片时出现问题

Question

我正在开发一个用户可以将图像上传到服务器的模块。为此，我必须将所选图像更改为 Base64。转换后，我必须使用 Json POST 方法上传图片，但每次应用程序崩溃时，我都会在这一行中收到错误..

String ba1=Base64.encodeToString(ba,Base64.DEFAULT);

这是我正在尝试的代码，请看一下，告诉我我在这里犯了什么错误。

buttonLoadPicture.setOnClickListener( new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub

            Intent i = new Intent(
                    Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);

                    startActivityForResult(i, RESULT_LOAD_IMAGE);
        }
    });

}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);

    if (requestCode == RESULT_LOAD_IMAGE && resultCode == RESULT_OK && null != data) {
        Uri selectedImage = data.getData();
        String[] filePathColumn = { MediaStore.Images.Media.DATA };

        Cursor cursor = getContentResolver().query(selectedImage,
                filePathColumn, null, null, null);
        cursor.moveToFirst();

        int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
        String picturePath = cursor.getString(columnIndex);
        cursor.close();

        ImageView imageView = (ImageView) findViewById(R.id.imgView);
        imageView.setImageBitmap(BitmapFactory.decodeFile(picturePath));

        ss = BitmapFactory.decodeFile(picturePath);
        Log.d("value", ss.toString());

  Bitmap bitmapOrg = BitmapFactory.decodeResource(getResources(),ss);
ByteArrayOutputStream bao = new ByteArrayOutputStream();
bitmapOrg.compress(Bitmap.CompressFormat.JPEG, 100, bao);
byte [] ba = bao.toByteArray();
String ba1=Base64.encodeToString(ba,Base64.DEFAULT);

Answer 1

encodeToString 不是 BitmapFactory. You should encode to base64 in a different way. I would like to suggest this answer

中的函数

在 android 的 php 服务器上发布图片时出现问题

Issue in Posting Image on php Server in android

base64

android

android-image