Spring Cloud Zookeeper

Spring Cloud Zookeeper provides Apache Zookeeper integrations for Spring Boot apps through autoconfiguration and binding to the Spring Environment and other Spring programming model idioms. With a few simple annotations you can quickly enable and configure the common patterns inside your application and build large distributed systems with Zookeeper. The patterns provided include Service Discovery and Distributed Configuration.

Features

Service Discovery: instances can be registered with Zookeeper and clients can discover the instances using Spring-managed beans
Supports Spring Cloud LoadBalancer - client-side load-balancing solution
Supports Spring Cloud OpenFeign
Distributed Configuration: using Zookeeper as a data store

Quick Start

As long as Spring Cloud Zookeeper, Apache Curator and the Zookeeper Java Client are on the classpath any Spring Boot application with @EnableDiscoveryClient will try to contact a Zookeeper agent on localhost:2181 (the default value of zookeeper.connectString).

@Configuration
@EnableAutoConfiguration
@EnableDiscoveryClient
@RestController
public class Application {

  @RequestMapping("/")
  public String home() {
    return "Hello World";
  }

  public static void main(String[] args) {
    SpringApplication.run(Application.class, args);
  }

}

A local Zookeeper server must be running. See the Zookeeper documentation on how to run a Zookeeper server.

Quickstart Your Project

Bootstrap your application with Spring Initializr.

Documentation

Each Spring project has its own; it explains in great details how you can use project features and what you can achieve with them.

3.1.2 CURRENT GA	Reference Doc.
4.0.0-SNAPSHOT SNAPSHOT	Reference Doc.
4.0.0-M5 PRE	Reference Doc.
3.1.3-SNAPSHOT SNAPSHOT	Reference Doc.
3.0.5-SNAPSHOT SNAPSHOT	Reference Doc.
3.0.4 GA	Reference Doc.
2.2.6.BUILD-SNAPSHOT SNAPSHOT	Reference Doc.
2.2.5.RELEASE GA	Reference Doc.

Branch	Initial Release	End of Support	End Commercial Support *
3.1.x	2021-11-30	2023-05-18	2024-08-22
3.0.x	2020-12-21	2022-05-19	2023-09-19
2.2.x	2019-11-26	2020-11-26	2022-03-26

OSS support

Free security updates and bugfixes with support from the Spring community. See VMware Tanzu OSS support policy.

Commercial support

Business support from Spring experts during the OSS timeline, plus extended support after OSS End-Of-Life.
Publicly available releases for critical bugfixes and security issues when requested by customers.

Future release

Generation not yet released, timeline is subject to changes.

About commercial support (*)

This page shows the current state of project releases and does not define the commercial support policy. Please refer to the official support policy for more information.

Learn more about commercial support.

A few examples to try out:

Zookeeper Sample