Jedis
What is Jedis?
Jedis is a Java client for Redis designed for performance and ease of use.
Are you looking for a high-level library to handle object mapping? See redis-om-spring!
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Supported Redis versions
The most recent version of this library supports redis version
7.2,
7.4,
8.0,
8.2,
8.4,
8.6,
8.8 and
8.10.
The table below highlights version compatibility of the most-recent library versions with Redis and JDK versions. Compatibility means communication features, and Redis command capabilities.
| Jedis version |
Supported Redis versions |
JDK Compatibility |
| 3.9+ |
5.0 to 6.2 Family of releases |
8, 11 |
| >= 4.0 |
Version 5.0 to 7.2 Family of releases |
8, 11, 17 |
| >= 5.0 |
Version 6.0 to current |
8, 11, 17, 21 |
| >= 5.2 |
Version 7.2 to current |
8, 11, 17, 21 |
| >= 6.0 |
Version 7.2 to current |
8, 11, 17, 21 |
| >= 7.0 |
Version 7.2 to current |
8, 11, 17, 21 |
| >= 8.0 |
Version 7.2 to current |
8, 11, 17, 21, 25 |
Getting started
To get started with Jedis, first add it as a dependency in your Java project. If you're using Maven, that looks like this:
<dependency>
<groupId>redis.clients</groupId>
<artifactId>jedis</artifactId>
<version>8.0.1</version>
</dependency>
To use the cutting-edge Jedis, check here.
Next, you'll need to connect to Redis. Consider installing a redis server with docker:
docker run -p 6379:6379 -it redis:latest
You can instantiate a RedisClient like so:
RedisClient jedis = RedisClient.builder().hostAndPort("localhost", 6379).build();
Now you can send commands:
jedis.sadd("planets", "Venus");
Connecting to a Redis cluster
Jedis lets you connect to Redis Clusters, supporting the Redis Cluster Specification.
To do this, you'll need to connect using RedisClusterClient. See the example below:
Set<HostAndPort> jedisClusterNodes = new HashSet<HostAndPort>();
jedisClusterNodes.add(new HostAndPort("127.0.0.1", 7379));
jedisClusterNodes.add(new HostAndPort("127.0.0.1", 7380));
RedisClusterClient jedis = RedisClusterClient.builder().nodes(jedisClusterNodes).build();
Now you can use the RedisClusterClient instance and send commands like you would with a standard pooled connection:
jedis.sadd("planets", "Mars");
Support for Redis data types
Jedis includes support for all Redis data types and features such as
JSON and VectorSets.
Failover
Jedis supports retry and failover for your Redis deployments. This is useful when:
- You have more than one Redis deployment. This might include two independent Redis servers or two or more Redis databases replicated across multiple active-active Redis Enterprise clusters.
- You want your application to connect to one deployment at a time and to fail over to the next available deployment if the first deployment becomes unavailable.
For the complete failover configuration options and examples, see the Jedis failover docs.
Token-Based Authentication
Jedis supports Token-Based authentication (TBA) starting with 5.3.0 GA release. This feature is complemented by an extension library that enhances the developer experience and provides most of the components required for TBA functionality.
Notably, the extension library includes built-in support for Microsoft EntraID, offering a seamless integration as part of the generic solution.
For more details and examples, please refer to the Advanced Usage documentation.
Documentation
The Jedis documentation site contains several useful articles for using Jedis.
You can also check the latest Jedis Javadocs.
Some specific use-case examples can be found in redis.clients.jedis.examples
package of the test source codes.
Troubleshooting
If you run into trouble or have any questions, we're here to help!
Hit us up on the Redis Discord Server or
Jedis GitHub Discussions.
Contributing
We'd love your contributions!
Bug reports are always welcome! You can open a bug report on GitHub.
To report a security vulnerability, please follow our Security Policy.
You can also contribute documentation -- or anything to improve Jedis. Please see
contribution guideline for more details.
License
Jedis is licensed under the MIT license.
Jedis 是一个面向 Redis 的 Java 客户端库，注重性能和易用性，让 Java 应用能够与 Redis 服务器、集群或 Redis Enterprise 部署进行通信。