Redis工具类（缓存操作，Object转换成JSON数据）

依赖spring-data-redis-2.4.1.jar

@Component
@Data
public class RedisUtils {@Autowiredprivate RedisTemplate<String, Object> redisTemplate;@Resource(name = "stringRedisTemplate")private ValueOperations<String, String> valueOperations;/*** 默认过期时长，单位：秒*/public final static long DEFAULT_EXPIRE = 60 * 60 * 24;/*** 不设置过期时长*/public final static long NOT_EXPIRE = -1;/*** 插入缓存默认时间** @param key   键* @param value 值* @author zmr*/public void set(String key, Object value) {set(key, value, DEFAULT_EXPIRE);}/*** 插入缓存** @param key    键* @param value  值* @param expire 过期时间(s)* @author zmr*/public void set(String key, Object value, long expire) {valueOperations.set(key, toJson(value));redisTemplate.expire(key, expire, TimeUnit.SECONDS);}/*** 返回字符串结果** @param key 键* @return* @author zmr*/public String get(String key) {return valueOperations.get(key);}/*** 返回指定类型结果** @param key   键* @param clazz 类型class* @return* @author zmr*/public <T> T get(String key, Class<T> clazz) {String value = valueOperations.get(key);return value == null ? null : fromJson(value, clazz);}/*** 删除缓存** @param key 键* @author zmr*/public void delete(String key) {redisTemplate.delete(key);}/*** 获得缓存的基本对象列表** @param pattern 字符串前缀* @return 对象列表*/public Set<String> keys(String pattern) {return redisTemplate.keys(pattern);}/*** Object转成JSON数据*/private String toJson(Object object) {if (object instanceof Integer || object instanceof Long || object instanceof Float || object instanceof Double|| object instanceof Boolean || object instanceof String) {return String.valueOf(object);}return JSON.toJSONString(object);}/*** JSON数据，转成Object*/private <T> T fromJson(String json, Class<T> clazz) {return JSON.parseObject(json, clazz);}