redis作计数器

1. @Override
2. public void incr(@Param("id") String id) {
3. ValueOperations<String, Long> operations = redisTemplate.opsForValue();
4.         operations.increment(id, 1L);
5.     }

1. @Override
2. public void sincr(@Param("id") String id) {
3.         System.out.println(getIncrValue(id));
4.     }
5. 
6. public long getIncrValue(final String key) {
7. return (long) redisTemplate.execute(new RedisCallback<Long>() {
8. @Override
9. public Long doInRedis(RedisConnection connection) throws DataAccessException {
10.                 RedisSerializer<String> serializer=redisTemplate.getStringSerializer();
11.                 byte[] rowkey=serializer.serialize(key);
12.                 byte[] rowval=connection.get(rowkey);
13. try {
14.                     String val=serializer.deserialize(rowval);
15. return Long.parseLong(val);
16.                 } catch (Exception e) {
17. return 0L;
18.                 }
19.             }
20.         });
21.     }