java - 错误:找不到符号类Base64

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What does a “Cannot find symbol” or “Cannot resolve symbol” error mean?
                                
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import org.apache.commons.codec.binary.Base64;
import java.util.Base64;

当我运行代码时，它给我一个错误。

    private void upload() {
    Bitmap bm = BitmapFactory.decodeFile(mCurrentPhotoPath);
    ByteArrayOutputStream bao = new ByteArrayOutputStream();
    bm.compress(Bitmap.CompressFormat.JPEG, 50, bao);
    byte[] ba = bao.toByteArray();
    ba1 = Base64.encodeBytes(ba);

    // Upload image to server
    new uploadToServer().execute();

}

我得到的错误是：

Error:(81, 21) error: cannot find symbol method encodeBytes(byte[])
Error:(43, 25) error: cannot find symbol class Base64

最佳答案

您正在导入Java库。请改为将Android库用于Base64。

import android.util.Base64;