StringRedisTemplate opsForStream

The `opsForStream` method in `StringRedisTemplate` is used to create Redis stream operations for the given Redis key. Streams in Redis are a data structure similar to log files, where each entry in the stream is a record that contains a unique ID and a set of key-value pairs.

With `opsForStream`, you can perform various stream operations such as adding new entries to a stream, reading entries from a stream, deleting entries from a stream, and more.

Some of the methods available in `opsForStream` include:

- `add`: Adds a new entry to a stream with the specified key-value pairs.
- `range`: Returns a range of entries from a stream, based on the specified start and end IDs.
- `read`: Reads entries from one or more streams, blocking until new entries are available.
- `acknowledge`: Acknowledges one or more entries in a stream, marking them as processed.

Overall, `opsForStream` provides a convenient and powerful way to work with Redis streams in your Java application.