Shulou(Shulou.com)06/01 Report--

Counters are often used in business requirements: for example, a mobile phone number is limited to sending 5 SMS messages a day, an API limits how many requests a minute, an API limits how many calls a day, and so on. The above requirements can be easily achieved by using Redis's Incr self-increment command. For example, an API limits the number of calls in a day:

/ * * whether to deny service * @ return * / private boolean denialOfService (String userId) {long count=JedisUtil.setIncr (DateUtil.getDate () + "&" + userId+ "&" + "queryCarViolation", 86400); if (count)

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