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redis/jedis

★ 12,321JavaAudience · developerComplexity · 2/5Setup · easy

TLDR

The official Java library for connecting to a Redis server, add it to your Maven or Gradle project and store, retrieve, and manage data with simple Java method calls.

Mindmap

mindmap
  root((Jedis))
    What it does
      Redis connection
      Java client library
      Cluster support
      Automatic failover
    Tech Stack
      Java
      Maven
      Gradle
      Redis
    Use Cases
      App caching
      Session storage
      Cloud Redis auth
    Audience
      Java developers
      Backend engineers
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Things people build with this

USE CASE 1

Add Redis caching to a Java application with simple get, set, and expire method calls via Maven or Gradle.

USE CASE 2

Connect a Java backend to a Redis Cluster for high-availability data storage across multiple servers.

USE CASE 3

Set up automatic failover so a Java app switches to a backup Redis server if the primary goes down.

USE CASE 4

Authenticate a Java app to a cloud-hosted Redis instance using Microsoft Entra ID token-based auth.

Tech stack

JavaMavenGradleRedis

Getting it running

Difficulty · easy Time to first run · 5min

Requires a running Redis server, add as a Maven or Gradle dependency, no other infrastructure needed to get started.

License not specified in the explanation.

In plain English

Jedis is the official Java client library for Redis, maintained by the Redis organization. Redis is an in-memory data store commonly used by applications to cache data, manage sessions, or handle fast lookups. Jedis provides Java applications with a straightforward way to connect to a Redis server and send commands to it, such as storing values, retrieving them, and working with Redis data structures like sets, hashes, and sorted sets. The library is added to a Java project as a dependency through Maven or Gradle, the standard build tools used in Java development. Once connected, developers write simple method calls in Java that correspond to Redis commands. The library handles the network communication and translates those calls into the Redis protocol behind the scenes. Beyond basic key-value operations, Jedis supports connecting to Redis Clusters, which are multi-server setups used when a single server is not enough. It also includes failover support, meaning it can automatically switch to a backup Redis server if the primary one becomes unavailable. Newer versions support token-based authentication including integration with Microsoft Entra ID for cloud deployments. The library is versioned to track both Redis server versions and Java version compatibility. The README includes a compatibility table showing which Jedis versions work with which Redis and Java versions. Support is available through a Discord server and GitHub Discussions.

Copy-paste prompts

Prompt 1
Show me how to add Jedis to my Maven project and write a Java example that connects to Redis, sets a key with an expiry, and retrieves it.
Prompt 2
How do I configure Jedis to connect to a Redis Cluster in Java with connection pooling for production use?
Prompt 3
I need Jedis to automatically fail over to a replica if the primary Redis server goes down, show me how to set up JedisSentinelPool.
Prompt 4
How do I use Jedis with Microsoft Entra ID token authentication for a Redis instance hosted on Azure Cache for Redis?
Prompt 5
Which Jedis version should I use with Redis 7 and Java 17? Show me how to read the compatibility table and write the Maven dependency.
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