1.引入redis依赖
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
2.设置key和value的序列化方式（这步是为了让key和value不出现看不懂的字符）
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;
@Configuration
public class RedisConfig {
@Autowired
private RedisConnectionFactory factory;
@Bean
RedisTemplate<String,Object> redisTemplate() {
RedisTemplate<String,Object> redisTemplate = new RedisTemplate<>();
redisTemplate.setKeySerializer(new StringRedisSerializer());
/* 使用Json序列化，默认是JDK序列化 */
Jackson2JsonRedisSerializer<Object> serializer = new Jackson2JsonRedisSerializer<>(Object.class);
redisTemplate.setValueSerializer(serializer);
redisTemplate.setConnectionFactory(factory);
return redisTemplate;
}
}
3.编写redis操作工具类
import javax.annotation.Resource;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Component;
@Component
public class RedisUtil {
@Resource //注意：如果省略第二步，则不能用@Autowired
private RedisTemplate<String, Object> redisTemplate;//RedisTemplate支持泛型
public void set(String key, Object value) {
redisTemplate.opsForValue().set(key, value);
}
public Object get(String key) {
return redisTemplate.opsForValue().get(key);
}
}
4.向redis里面写入list对象
4.从redis里面取出list对象
List<LongitudeLatitudeDTO> lonLat = (List<LongitudeLatitudeDTO>) redisUtil.get("allLonLat");