Springboot统一给redis缓存的Key加前缀

第一步：配置redis

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.data.keyvalue.core.mapping.KeyPrefix;
import org.springframework.data.keyvalue.core.query.KeyValueQuery;
import java.time.Duration;@Configuration
public class RedisConfig {public static final String redisPrefix="xxxx:"; @Beanpublic RedisTemplate<String, String> redisTemplate(StringRedisTemplate stringRedisTemplate) {RedisTemplate<String, String> template = new RedisTemplate<>();template.setKeySerializer(stringRedisTemplate.getKeySerializer());template.setValueSerializer(stringRedisTemplate.getValueSerializer());template.setHashKeySerializer(stringRedisTemplate.getHashKeySerializer());template.setHashValueSerializer(stringRedisTemplate.getHashValueSerializer());template.setEnableTransactionSupport(true);template.setConnectionFactory(stringRedisTemplate.getConnectionFactory());// 设置key的前缀KeyPrefix keyPrefix = new KeyPrefix() {@Overridepublic byte[] prefix(String key) {return (redisPrefix + ":" + key).getBytes();}};template.setKeyGenerator(keyPrefix);return template;}
}

第二步：在使用

//在代码中注入RedisTemplate
@Autowired
private RedisTemplate<String, String> redisTemplate;//写个方法调用
public void setValue(String key, String value) {// //使用，添加一个缓存，添加后使用redis管理工具查看，此时会发现key将会自动加上前缀"redisPrefix:"redisTemplate.opsForValue().set(key, value, Duration.ofMinutes(300));}