Redis分布式锁的代码陷阱

首先来看一段代码：建立锁
package com.cc.api.impl.m.util;

import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Component;

import java.util.Collections;
import java.util.Date;
import java.util.concurrent.TimeUnit;

/**

• @author

• @date

• @desc redis分布式可重入锁
  */
  @Component
  @Slf4j
  public class RedisLock {

  @Autowired
  private RedisTemplate redisTemplate;

  @Autowired
  private static StringRedisTemplate redisTemplateString;

  public void setRedisTemplate(StringRedisTemplate redisTemplate) {
  this.redisTemplate = redisTemplate;
  }

  public RedisTemplate getRedisTemplate() {
  return this.redisTemplate;
  }
  @Autowired
  public void setRedisTemplateString(StringRedisTemplate redisTemplateString) {
  RedisLock.redisTemplateString = redisTemplateString;
  }

  public static StringRedisTemplate getRedisTemplateString() {
  return redisTemplateString;
  }

  /**

  • 获取锁
  • @param lockName 锁名称
  • @param releaseTime 超时时间(单位:时间)
  • @return key 解锁标识
    */
    public boolean getLock(String lockName,String threadId,Date releaseTim