# Jedis
[](https://github.com/redis/jedis/releases/latest)
[](https://central.sonatype.com/artifact/redis.clients/jedis)
[](https://www.javadoc.io/doc/redis.clients/jedis)
[](https://github.com/redis/jedis/blob/master/LICENSE)
[](https://codecov.io/gh/redis/jedis)
[](https://discord.gg/redis)
## What is Jedis?
Jedis is a Java client for [Redis](https://github.com/redis/redis "Redis") designed for performance and ease of use.
Are you looking for a high-level library to handle object mapping? See [redis-om-spring](https://github.com/redis/redis-om-spring)!
## How do I Redis?
[Learn for free at Redis University](https://university.redis.io/academy/)
[Try the Redis Cloud](https://redis.io/try-free/)
[Dive in developer tutorials](https://redis.io/learn/)
[Join the Redis community](https://redis.io/community/)
[Work at Redis](https://redis.io/careers/jobs/)
## Supported Redis versions
The most recent version of this library supports redis version
[7.2](https://github.com/redis/redis/blob/7.2/00-RELEASENOTES),
[7.4](https://github.com/redis/redis/blob/7.4/00-RELEASENOTES),
[8.0](https://github.com/redis/redis/blob/8.0/00-RELEASENOTES),
[8.2](https://github.com/redis/redis/blob/8.2/00-RELEASENOTES),
[8.4](https://github.com/redis/redis/blob/8.4/00-RELEASENOTES),
[8.6](https://github.com/redis/redis/blob/8.6/00-RELEASENOTES),
[8.8](https://github.com/redis/redis/blob/8.8/00-RELEASENOTES) and
[8.10](https://github.com/redis/redis/blob/8.10/00-RELEASENOTES).
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:
```xml
<dependency>
<groupId>redis.clients</groupId>
<artifactId>jedis</artifactId>
<version>8.0.1</version>
</dependency>
```
To use the cutting-edge Jedis, check [here](https://redis.github.io/jedis/jedis-maven/).
Next, you'll need to connect to Redis. Consider installing a redis server with docker:
```bash
docker run -p 6379:6379 -it redis:latest
```
You can instantiate a RedisClient like so:
```java
RedisClient jedis = RedisClient.builder().hostAndPort("localhost", 6379).build();
```
Now you can send commands:
```java
jedis.sadd("planets", "Venus");
```
## Connecting to a Redis cluster
Jedis lets you connect to Redis Clusters, supporting the [Redis Cluster Specification](https://redis.io/topics/cluster-spec).
To do this, you'll need to connect using `RedisClusterClient`. See the example below:
```java
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:
```java
jedis.sadd("planets", "Mars");
```
## Support for Redis data types
Jedis includes support for all [Redis data types](https://redis.io/docs/latest/develop/data-types/) and features such as
[JSON](https://redis.io/docs/latest/develop/data-types/json/) and [VectorSets](https://redis.io/docs/latest/develop/data-types/vector-sets/).
## Failover
Jedis supports retry and failover for your Redis deployments. This is useful when:
1. 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](https://redis.io/docs/latest/operate/rs/databases/active-active/) clusters.
2. 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](https://redis.github.io/jedis/failover/).
## 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](https://redis.github.io/jedis/advanced-usage/) documentation.
## Documentation
The [Jedis documentation site](https://redis.github.io/jedis/) contains several useful articles for using Jedis.
You can also check the [latest Jedis Javadocs](https://www.javadoc.io/doc/redis.clients/jedis/latest/index.html).
Some specific use-case examples can be found in [`redis.clients.jedis.examples`
package](https://github.com/redis/jedis/tree/master/src/test/java/redis/clients/jedis/examples/) 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](http://discord.gg/redis) or
[Jedis GitHub Discussions](https://github.com/redis/jedis/discussions).
## Contributing
We'd love your contributions!
Bug reports are always welcome! [You can open a bug report on GitHub](https://github.com/redis/jedis/issues/new).
To report a security vulnerability, please follow our [Security Policy](https://github.com/redis/jedis/blob/master/SECURITY.md).
You can also contribute documentation -- or anything to improve Jedis. Please see
[contribution guideline](https://github.com/redis/jedis/blob/master/.github/CONTRIBUTING.md) for more details.
## License
Jedis is licensed under the [MIT license](https://github.com/redis/jedis/blob/master/LICENSE).
## Sponsorship
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