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Basic usage
RedisClient client = new RedisClient("localhost");
RedisStringsConnection<String, String> connection = client.connect();
String value = connection.get("key");
...
connection.close();
client.shutdown();
Each Redis command is implemented by one or more methods with names
identical to the lowercase Redis command name. Complex commands with
multiple modifiers that change the result type include the CamelCased
modifier as part of the command name, e.g. zrangebyscore
and
zrangebyscoreWithScores
.
Redis connections are designed to be long-lived and thread-safe, and if
the connection is lost will reconnect until close()
is called. Pending
commands that have not timed out will be (re)sent after successful
reconnection.
All connections inherit a default timeout from their RedisClient and
and will throw a RedisException
when non-blocking commands fail to
return a result before the timeout expires. The timeout defaults to 60
seconds and may be changed in the RedisClient or for each connection.
Synchronous methods will throw a RedisCommandExecutionException
in
case Redis responds with an error. Asynchronous connections do not throw
exceptions when Redis responds with an error.
The RedisURI contains the host/port and can carry
authentication/database details. On a successful connect you get
authenticated, and the database is selected afterward. This applies
also after re-establishing a connection after a connection loss.
A Redis URI can also be created from an URI string. Supported formats are:
-
redis://[password@]host[:port][/databaseNumber]
Plaintext Redis connection -
rediss://[password@]host[:port][/databaseNumber]
SSL Redis connection -
redis-sentinel://[password@]host[:port][,host2[:port2]][/databaseNumber]#sentinelMasterId
for using Redis Sentinel -
redis-socket:///path/to/socket
Unix Domain Socket connection to Redis
In the case of an exception/error response from Redis, you’ll receive a
RedisException
containing
the error message. RedisException
is a RuntimeException
.
Using Host and Port and set the default timeout to 20 seconds
RedisClient client = new RedisClient("localhost", 6379);
client.setDefaultTimeout(20, TimeUnit.SECONDS);
Using RedisURI
RedisURI redisUri = RedisURI.Builder.redis("localhost")
.withPassword("authentication")
.withDatabase(2)
.build();
RedisClient client = new RedisClient(rediUri);
SSL RedisURI
RedisURI redisUri = RedisURI.Builder.redis("localhost")
.withSsl(true)
.withPassword("authentication")
.withDatabase(2)
.build();
RedisClient client = new RedisClient(redisUri);
String RedisURI
RedisURI redisUri = RedisURI.create("redis://authentication@localhost/2");
RedisClient client = new RedisClient(rediUri);
Lettuce documentation was moved to https://redis.github.io/lettuce/overview/
Intro
Getting started
- Getting started
- Redis URI and connection details
- Basic usage
- Asynchronous API
- Reactive API
- Publish/Subscribe
- Transactions/Multi
- Scripting and Functions
- Redis Command Interfaces
- FAQ
HA and Sharding
Advanced usage
- Configuring Client resources
- Client Options
- Dynamic Command Interfaces
- SSL Connections
- Native Transports
- Unix Domain Sockets
- Streaming API
- Events
- Command Latency Metrics
- Tracing
- Stateful Connections
- Pipelining/Flushing
- Connection Pooling
- Graal Native Image
- Custom commands
Integration and Extension
Internals