springboot redis hash 取100

实现SpringBoot Redis Hash 取100

一、流程

在实现SpringBoot Redis Hash 取100的过程中，我们需要完成以下步骤：

gantt
    title SpringBoot Redis Hash 取100实现流程
    section 准备工作
    设置Redis连接信息 :done, des1, 2022-01-01, 1d
    导入依赖 :done, des2, after des1, 1d
    section 编写代码
    编写Redis Hash存储数据 :done, des3, after des2, 2d
    取100操作 :active, des4, after des3, 2d

二、步骤

1. 准备工作

在开始实现之前，我们需要先完成一些准备工作。

设置Redis连接信息

@Configuration
public class RedisConfig {

    @Bean
    public LettuceConnectionFactory redisConnectionFactory() {
        RedisStandaloneConfiguration redisConf = new RedisStandaloneConfiguration();
        redisConf.setHostName("127.0.0.1");
        redisConf.setPort(6379);
        return new LettuceConnectionFactory(redisConf);
    }

    @Bean
    public RedisTemplate<String, Object> redisTemplate() {
        RedisTemplate<String, Object> redisTemplate = new RedisTemplate<>();
        redisTemplate.setConnectionFactory(redisConnectionFactory());
        redisTemplate.setKeySerializer(new StringRedisSerializer());
        redisTemplate.setValueSerializer(new Jackson2JsonRedisSerializer<>(Object.class));
        redisTemplate.afterPropertiesSet();
        return redisTemplate;
    }
}

导入依赖

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

2. 编写代码

编写Redis Hash存储数据

@Autowired
private RedisTemplate<String, Object> redisTemplate;

public void saveToRedisHash(String key, Map<String, Object> map) {
    HashOperations<String, String, Object> hashOperations = redisTemplate.opsForHash();
    hashOperations.putAll(key, map);
}

取100操作

@Autowired
private RedisTemplate<String, Object> redisTemplate;

public Map<String, Object> getFromRedisHash(String key) {
    HashOperations<String, String, Object> hashOperations = redisTemplate.opsForHash();
    return hashOperations.entries(key);
}

public Object getValueFromKey(String key, String field) {
    HashOperations<String, String, Object> hashOperations = redisTemplate.opsForHash();
    return hashOperations.get(key, field);
}

以上代码中，我们通过RedisTemplate来操作Redis的Hash数据结构，实现了存储数据和取数据的功能。

三、类图

classDiagram
    class RedisConfig {
        +redisConnectionFactory(): LettuceConnectionFactory
        +redisTemplate(): RedisTemplate<String, Object>
    }
    class RedisUtil {
        +saveToRedisHash(String key, Map<String, Object> map): void
        +getFromRedisHash(String key): Map<String, Object>
        +getValueFromKey(String key, String field): Object
    }

通过上述步骤和代码，你已经学会了如何在SpringBoot中使用Redis Hash存储数据，并实现了取100操作。希望这篇文章对你有所帮助！