// String数据类型 存储一对键值 仅支持value为String类型
public void setString(final String key, final String value) {
redisTemplate.execute(
new RedisCallback<Serializable>() {
public Serializable doInRedis(RedisConnection connection) throws DataAccessException {
connection.set(
redisTemplate.getStringSerializer().serialize(key),
redisTemplate.getStringSerializer().serialize(value));
return null;
}
});
}
public boolean setnx(final String key, final String value, Long expireTime) {
Boolean result =
redisTemplate.execute(
new RedisCallback<Boolean>() {
@Override
public Boolean doInRedis(RedisConnection connection) throws DataAccessException {
return connection.setNX(key.getBytes(), value.getBytes());
}
});
if (result) redisTemplate.expire(key, expireTime, TimeUnit.MILLISECONDS);
return result;
}
/**
* String数据类型 读取键为key的值仅支持value为String类型
*
* @param key
* @return 字符串
*/
public Serializable getString(final String key) {
return redisTemplate.execute(
new RedisCallback<Serializable>() {
@Override
public Serializable doInRedis(RedisConnection connection) throws DataAccessException {
byte[] byteKey = redisTemplate.getStringSerializer().serialize(key);
if (connection.exists(byteKey)) {
byte[] value = connection.get(byteKey);
String strValue = redisTemplate.getStringSerializer().deserialize(value);
return strValue;
}
return null;
}
});
}
