Java と Redis を使用した電子商取引 Web サイトの構築: 大量の商品データの処理方法

<dependencies>
    <dependency>
        <groupId>redis.clients</groupId>
        <artifactId>jedis</artifactId>
        <version>3.6.0</version>
    </dependency>
</dependencies>

import redis.clients.jedis.Jedis;

public class RedisConnection {
    public static void main(String[] args) {
        Jedis jedis = new Jedis("localhost", 6379);
        System.out.println("Connected to Redis");
        
        // 其他操作
    }
}

import redis.clients.jedis.Jedis;

public class ProductStorage {
    private Jedis jedis;
    
    public ProductStorage() {
        jedis = new Jedis("localhost", 6379);
    }
    
    public void storeProduct(String productId, String name, String description, double price) {
        String key = "product:" + productId;
        
        jedis.hset(key, "name", name);
        jedis.hset(key, "description", description);
        jedis.hset(key, "price", String.valueOf(price));
    }
}

import redis.clients.jedis.Jedis;

public class ProductRetrieval {
    private Jedis jedis;
    
    public ProductRetrieval() {
        jedis = new Jedis("localhost", 6379);
    }
    
    public String getProductName(String productId) {
        String key = "product:" + productId;
        
        return jedis.hget(key, "name");
    }
    
    public String getProductDescription(String productId) {
        String key = "product:" + productId;
        
        return jedis.hget(key, "description");
    }
    
    public double getProductPrice(String productId) {
        String key = "product:" + productId;
        
        return Double.parseDouble(jedis.hget(key, "price"));
    }
}

import redis.clients.jedis.Jedis;

public class ProductUpdate {
    private Jedis jedis;

    public ProductUpdate() {
        jedis = new Jedis("localhost", 6379);
    }

    public void updateProductName(String productId, String newName) {
        String key = "product:" + productId;

        jedis.hset(key, "name", newName);
    }

    public void updateProductDescription(String productId, String newDescription) {
        String key = "product:" + productId;

        jedis.hset(key, "description", newDescription);
    }

    public void updateProductPrice(String productId, double newPrice) {
        String key = "product:" + productId;

        jedis.hset(key, "price", String.valueOf(newPrice));
    }
}