java 如何将base64字符串转换为blob?

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时间:2020-11-02 20:41:16  来源:igfitidea点击:

How to convert base64 string to blob?

javaandroidbase64bytearrayblob

提问by gayan1991

A Synchronization service that provide an image in Base64string and I want to save that into a SQLitedatabase blobfield?

提供Base64字符串图像的同步服务,我想将其保存到SQLite数据库blob字段中?

Could anyone tell me how to proceed with this or any other way to do this procedure?

谁能告诉我如何进行此程序或以任何其他方式执行此程序?

As later on, I need to show image in bitmap.

稍后,我需要在位图中显示图像。

回答by Akshay Paliwal

You convert a base64 image string to byte[] like :

您将 base64 图像字符串转换为 byte[],例如:

byte[] decodedByte = Base64.decode(yourBase64String, 0); 

after that you also can convert it to Bitmap :

之后,您还可以将其转换为 Bitmap :

Bitmap bitmap = BitmapFactory.decodeByteArray(decodedByte, 0, decodedByte.length);

回答by LebroNan

To convert a base64 string to a byte[], you can use:

要将 base64 字符串转换为 byte[],您可以使用:

byte[] decodedByte = Base64.decode(yourBase64String)

And to convert a byte[] to a blob, you can use:

要将 byte[] 转换为 blob,您可以使用:

Blob b = new SerialBlob(decodedByte);