“Java” Caching with Spring: Using Redis or Ehcache

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“Java” Caching with Spring: Using Redis or Ehcache

Caching is an essential part of any application to improve performance by storing frequently accessed data in memory. In this guide, we will explore how to implement caching in a Java Spring application using either Redis or Ehcache.

Using Redis for Caching

Redis is an in-memory data store that can be used as a cache. To integrate Redis with Spring, you will need to add the following dependencies to your pom.xml file:

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>

Next, you will need to configure Redis properties in your application.properties file:

spring.redis.host=localhost
spring.redis.port=6379

You can now use Redis as a cache by simply adding the @Cacheable annotation to your methods:

@Cacheable(value = "myCache")
public String getData() {
    // fetch data from database or external API
}

Using Ehcache for Caching

Ehcache is an open-source, in-process cache that can also be used with Spring. To start using Ehcache, add the following dependencies to your pom.xml file:

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-cache</artifactId>
</dependency>
<dependency>
    <groupId>net.sf.ehcache</groupId>
    <artifactId>ehcache</artifactId>
</dependency>

You will also need to configure Ehcache properties in your application.properties file:

spring.cache.type=ehcache

Now, you can annotate your methods with @Cacheable to enable caching with Ehcache:

@Cacheable(value = "myCache")
public String getData() {
    // fetch data from database or external API
}

By following the steps above, you can easily implement caching in your Java Spring application using either Redis or Ehcache. Happy coding!