12 2021 档案
摘要：/** * 锁定一个key,***一定要手工释放锁 * * @param key * @return */ public boolean lockKey(String key) { return redisTemplate.opsForValue().setIfAbsent(key, 0); } /
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摘要：package com.xf.config; import java.sql.SQLException; import java.util.Map; import java.util.Set; import java.util.concurrent.ConcurrentHashMap; import
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摘要：<html> <head> <title>学习</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale
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