Java Android Base64到图像转换不同的编码？
我正在尝试将Base64字符串/字节数组转换为图像，但它不起作用 我有我正在编码和解码的现有绘图工具，工作正常 所以我认为我使用的编码是不正确的 我正在这样记录Java Android Base64到图像转换不同的编码？,java,android,sqlite,base64,Java,Android,Sqlite,Base64,我正在尝试将Base64字符串/字节数组转换为图像，但它不起作用 我有我正在编码和解码的现有绘图工具，工作正常 所以我认为我使用的编码是不正确的 我正在这样记录base64： Log.e（“标签”，内容） 数据库中的Base64（直接图像未转换为可绘制图像，不起作用），完全未格式化： /9j/4AAQSkZJRgABAgEBLAEsAAD/4QolRXhpZgAATU0AKgAAAAgABwESAAMAAAABAAEAAAEaAAUAAAABAAAAYgEbAAUAAAABAAAAagEoAAM
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phpblob$row['image']while ($row = mysql_fetch_array($result, MYSQL_ASSOC)){
$blob = $row['Image'];
$id = $row['ID'];
$base64 = base64_encode($blob);
echo $base64;
$mysql = "UPDATE Images SET Image = '" . $base64 . "' WHERE ID = " . $id . ";";
$q = mysql_query($mysql);
}
我可以解码未格式化的base64字符串，但无法使用
BitmapFactory.decodeByteArray（imgData，0，imgData.length）获取位图图像返回null
。您是否可能正在尝试解码不受支持的图像格式？你能详细说明原始文件元数据吗？这里也一样。要获得图像，我只需将图像
字段内容写入一个文件，并将.jpg
放在末尾。这是JPEG图像（image/JPEG）
@Markus-Aha，我必须将内容写入.jpg
中，然后将其转换为可绘制图像，然后将其转换为base64
，然后将其写回数据库。这是什么意思？为什么会发生这种情况？你能打开.jpg文件吗？我已经在android中解码了base64流，然后我将其保存到一个文件中，并将其从设备中拉到我的电脑上。然后我尝试在我的电脑上打开它，但它没有显示。可能源图像已损坏-我现在正在查找二进制图像的故障排除。