存储在 MySQL 中后的 base64 错误

Question

I am developing a simple app for Max OS X for making screenshots using Swift language. After screenshot was made, I convert it into a base64 string using:

screenshot.base64EncodedString()

I have a simple .php file on my server for saving this base64 string into MySQL database. Everything works well, but when I am trying to receive this image string from server on my android device, it throws an exception while decoding a base64 "bad base64".

This is what I am using to decode image:

byte[] decodedString = Base64.decode(encodedImage, Base64.DEFAULT);
Bitmap decodedByte = BitmapFactory.decodeByteArray(decodedString, 0, decodedString.length); 

I am using this to put/get image from MySQL database:

Put: INSERT INTO db (screen) VALUES ('$screen') Get: SELECT * FROM db

I am storing my base64 as a LONGTEXT in my database.

Can anyone help me?

Answer 1

The solution is truly replacing "+" with "-" in base64 encoded string before submitting to MySQL and replacing the "-" with "+" after retrieving from MySQL to get the original string. This is because MySQL replaces "+" with white space. It will solve the problem.

Answer 2

I found a solution! Replacing "+" with "-" in base64 encoded string solved my problem. The problem was that MySQL replaces + whith a space.