Spring Boot上的分页缓存

<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-redis</artifactId>
    </dependency>
    <dependency>
        <groupId>com.github.ben-manes.caffeine</groupId>
        <artifactId>caffeine</artifactId>
    </dependency>
</dependencies>

spring:
  cache:
    type: caffeine
    caffeine:
      spec: maximumSize=500,expireAfterAccess=60s
  redis:
    host: localhost
    port: 6379

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cache.annotation.EnableCaching;

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

import org.springframework.cache.annotation.Cacheable;
import org.springframework.stereotype.Service;

@Service
public class ProductService {

    @Cacheable(value = "products", key = "#page + '-' + #size")
    public List<Product> getProducts(int page, int size) {
        // 模拟从数据库中获取数据
        return productRepository.findAll(PageRequest.of(page, size)).getContent();
    }
}

import org.springframework.cache.annotation.CacheEvict;
import org.springframework.stereotype.Service;

@Service
public class ProductService {

    @CacheEvict(value = "products", allEntries = true)
    public void updateProduct(Product product) {
        productRepository.save(product);
    }
}

@Cacheable(value = "products", key = "#id", unless = "#result == null")
public Product getProductById(String id) {
    return productRepository.findById(id).orElse(null);
}