CODEWITHSUNDEEP
javaredisbinary-data
jiluo
jiluo

Reputation: 2346

Java convert bytes to binary safe string

I have some data in bytes, and I want to put them into Redis, but Redis only accepts binary safe string, and my data has some binary non-safe bytes. So how can I convert these bytes into binary safe string so that I can save them to Redis?

Base64 works for me, but it makes data larger, any better idea?

UPDATE: I want to serialize my protobuf object to Redis, and the serialized data has '\x00', so when I read the data from Redis, I can not deserialize the data to object. Then I tried base64, it works fine, but with larger size.

So I want to figure out how to serialize binary data (protobuf object) to Redis safely and with smaller size

Upvotes: 4

Views: 2108

Answers (2)

Jono
Jono

Reputation: 948

The only safe way to serialize a binary object (such as a protobuf object) is to base64 encode it. Base64 has a 33% overhead but gives you the ability to safely convert from arbitrary binary data to text (such as for use in an xml file) and back.

Upvotes: -1

Peter Lawrey
Peter Lawrey

Reputation: 533492

You could try ISO-8859-1 encoding. This uses a one to one mapping between bytes and chars.

This could still result in corruption depending on why Redis need this "binary safe" string. You may have to use base64.

Upvotes: 2

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