private void HashOperate() {
System.out.println("======================hash==========================");
// 清空数据
System.out.println(jedis.flushDB());
System.out.println("=============增=============");
System.out.println(
"hashs中添加key001和value001键值对：" + shardedJedis.hset("hashs", "key001", "value001"));
System.out.println(
"hashs中添加key002和value002键值对：" + shardedJedis.hset("hashs", "key002", "value002"));
System.out.println(
"hashs中添加key003和value003键值对：" + shardedJedis.hset("hashs", "key003", "value003"));
System.out.println("新增key004和4的整型键值对：" + shardedJedis.hincrBy("hashs", "key004", 4l));
System.out.println("hashs中的所有值：" + shardedJedis.hvals("hashs"));
System.out.println();
System.out.println("=============删=============");
System.out.println("hashs中删除key002键值对：" + shardedJedis.hdel("hashs", "key002"));
System.out.println("hashs中的所有值：" + shardedJedis.hvals("hashs"));
System.out.println();
System.out.println("=============改=============");
System.out.println("key004整型键值的值增加100：" + shardedJedis.hincrBy("hashs", "key004", 100l));
System.out.println("hashs中的所有值：" + shardedJedis.hvals("hashs"));
System.out.println();
System.out.println("=============查=============");
System.out.println("判断key003是否存在：" + shardedJedis.hexists("hashs", "key003"));
System.out.println("获取key004对应的值：" + shardedJedis.hget("hashs", "key004"));
System.out.println("批量获取key001和key003对应的值：" + shardedJedis.hmget("hashs", "key001", "key003"));
System.out.println("获取hashs中所有的key：" + shardedJedis.hkeys("hashs"));
System.out.println("获取hashs中所有的value：" + shardedJedis.hvals("hashs"));
System.out.println();
}
@Override
public Boolean hexists(String key, String field) {
ShardedJedis jedis = shardedJedisPool.getResource();
try {
return jedis.hexists(key, field);
} catch (Exception e) {
logger.error("Execute redis command failure", e);
} finally {
jedis.close();
}
return Boolean.FALSE;
}
public boolean hasLiked(int uid, int bid) {
String hashcode = encodeUtil.encode(bid, uid);
if (shardedJedis.hexists(hashcode, "isLiked")
&& shardedJedis.hget(hashcode, "isLiked").equals(BookLikes.LIKED + "")) {
return true;
} else {
return false;
}
}
/**
* 判断key是否存在
*
* @param domain 域名
* @param key 键值
* @return
*/
public boolean existsHSet(String domain, String key) {
ShardedJedis shardedJedis = null;
boolean isExist = false;
try {
shardedJedis = slaveShardedJedisPool.getResource();
isExist = shardedJedis.hexists(domain, key);
} catch (Exception ex) {
logger.error("existsHSet error.", ex);
} finally {
returnResource(shardedJedis);
}
return isExist;
}
/**
* 通过key和field判断是否有指定的value存在
*
* @param key
* @param field
* @return
*/
public Boolean hexists(String key, String field) {
ShardedJedis jedis = null;
Boolean res = false;
try {
jedis = pool.getResource();
res = jedis.hexists(key, field);
} catch (Exception e) {
pool.returnBrokenResource(jedis);
e.printStackTrace();
} finally {
returnResource(pool, jedis);
}
return res;
}
