Add redis: Boot 4.1 + Spring Data Redis 4.1, the JDK-serialisation default vs Jackson 3 serializers, @RedisHash TTL and keyspace events, @RedisListener, and Redis as the Spring cache

Co-Authored-By: Claude Sonnet 5 <[email protected]> Claude-Session: https://claude.ai/code/session_01B38FGKKam5SCGgwgduVAh3
2026-09-21 15:46:55 +00:00
parent 8cdfcd4d8d
commit b0c39a8d4c
60 changed files with 2900 additions and 1 deletions
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+# StringRedisTemplate: every key and value is UTF-8 text
+
+
+--- Which serializers is it using? ---
+key serializer:   StringRedisSerializer
+value serializer: StringRedisSerializer
+hash key serializer:   StringRedisSerializer
+hash value serializer: StringRedisSerializer
+
+--- A string value ---
+stringTemplate.opsForValue().set("user:1", "Ankur")
+$ redis-cli -p 6390 --no-raw GET user:1
+"Ankur"
+
+--- A counter ---
+stringTemplate.opsForValue().increment("hits") twice = 2
+$ redis-cli -p 6390 --no-raw GET hits
+"2"
+
+--- A hash ---
+stringTemplate.opsForHash().put("user:1:profile", "city", "Pune") and ("editor", "vim")
+$ redis-cli -p 6390 --no-raw HGETALL user:1:profile
+1) "city"
+2) "Pune"
+3) "editor"
+4) "vim"
+
+--- A list, a set and a sorted set ---
+$ redis-cli -p 6390 --no-raw LRANGE queue 0 -1
+1) "a"
+2) "b"
+3) "c"
+$ redis-cli -p 6390 SMEMBERS tags | sort
+java
+spring
+$ redis-cli -p 6390 --no-raw ZRANGE scores 0 -1 WITHSCORES
+1) "ankur"
+2) "42"
+$ redis-cli -p 6390 KEYS '*' | sort
+hits
+queue
+scores
+tags
+user:1
+user:1:profile