timeunit - 腾讯云开发者社区

文章/答案/技术大牛

发布

有意思的TimeUnit

java.util.concurrent.TimeUnit 这个类，相信童鞋们都不陌生。它是一个enum： public enum TimeUnit 好吧，我一直把它当做一个枚举类来用。...偶然看到还有别的用法，大吃一斤，原来 TimeUnit 并不是一个简单的枚举类。...时间单位换算 //小时转换为秒 long sec = TimeUnit.HOURS.toSeconds(1); // 另一种形式 long sec = TimeUnit.SECONDS.convert...(1, TimeUnit.HOURS); sleep() 比如，当前线程休眠5秒，传统的方式如下： Thread.sleep(5000); 用TimeUnit看起来是这样的： TimeUnit.SECONDS.sleep...得掰着手指头 —— 看半天，用TimeUnit就清晰多了。 TimeUnit.DAYS.sleep(1);

6592 0

通过java.util.concurrent.TimeUnit来学习枚举

一、背景今天无意间看到了java.util.concurrent.TimeUnit枚举类。想通过这个类谈谈枚举，以及编程规范问题。...二、源码源码： package java.util.concurrent; /** * A {@code TimeUnit} represents time durations at a given...* * A {@code TimeUnit} is mainly used to inform time-based methods * how a given timing parameter...* * @since 1.5 * @author Doug Lea */ public enum TimeUnit { /** * Time unit representing...另外我们通过源码可以看到，为什么TimeUnit.SECONDS.sleep(10);可以让当前线程暂停10秒呢？

5983 0

您找到你想要的搜索结果了吗？

是的

没有找到

ReentrantLock的lock(), tryLock(), tryLock(long timeout, TimeUnit unit), lockInterruptibly() 及使用场景示例

2.ReentrantLock提供的获取锁的方式 ReentrantLock提供了lock()、tryLock()、tryLock(long timeout, TimeUnit unit)、lock.lockInterruptibly...但是如果就是想使用公平的方式的话，可以试一试tryLock(0, TimeUnit.SECONDS)，几乎跟公平锁没区别，只是会监测中断事件。...3）tryLock(long timeout, TimeUnit unit) public boolean tryLock(long timeout, TimeUnit unit)...但是tryLock（long，TimeUnit）在等待超时之后可以结束等待。...TryLockInterrupt-Thread lockTest----current thread release the lock: Lock-Thread 同时，tryLock(long, TimeUnit

8522 0

RxJava 之 TestScheduler

scheduler.advanceTimeTo(10, TimeUnit.MILLISECONDS); 时钟移动到20毫秒。...scheduler.advanceTimeBy(20, TimeUnit.MILLISECONDS); 下面的列子展示了0秒、20秒、40秒会打印不同的结果。...: " + scheduler.now(TimeUnit.MILLISECONDS)); scheduler.advanceTimeTo(20, TimeUnit.SECONDS);...(40, TimeUnit.SECONDS); System.out.println("virtual time: " + scheduler.now(TimeUnit.SECONDS)...time:" + scheduler.now(TimeUnit.SECONDS)); scheduler.advanceTimeBy(2, TimeUnit.SECONDS);

9562 0

聊聊httpclient的evict操作

maxIdleTimeUnit : TimeUnit.SECONDS, maxIdleTime, maxIdleTimeUnit); } public...timeUnit) throws InterruptedException { thread.join((timeUnit !...timeUnit : TimeUnit.MILLISECONDS).toMillis(time)); } static class DefaultThreadFactory implements...* @param timeUnit time unit. */ public void closeIdle(final long idletime, final TimeUnit...timeUnit) { Args.notNull(timeUnit, "Time unit"); long time = timeUnit.toMillis(idletime

4553 0

RxJava 过滤操作符

final Observable skipLast(int count) public final Observable skipLast(long time, TimeUnit unit... skipLast(long time, TimeUnit unit, Scheduler scheduler) public final Observable skipLast(long...unit) public final Observable take(long time, TimeUnit unit, Scheduler scheduler) // 反方向 public...unit) public final Observable takeLast(long time, TimeUnit unit, boolean delayError) public final...(1, 20, 0,100, TimeUnit.MILLISECONDS) .sample(300, TimeUnit.MILLISECONDS).subscribe

1.8K1 0

聊聊jetcache的MultiLevelCache

timeUnit); default void put(K key, V value, long expireAfterWrite, TimeUnit timeUnit) { PUT...); } CacheResult PUT(K key, V value, long expireAfterWrite, TimeUnit timeUnit); default void...extends V> map, long expireAfterWrite, TimeUnit timeUnit) { PUT_ALL(map, expireAfterWrite, timeUnit...extends V> map, long expireAfterWrite, TimeUnit timeUnit); CacheResult REMOVE(K key); CacheResult...extends V> map, long expireAfterWrite, TimeUnit timeUnit) { long t = System.currentTimeMillis(

2171 0

聊聊jetcache的MultiLevelCache

timeUnit); default void put(K key, V value, long expireAfterWrite, TimeUnit timeUnit) {...); } CacheResult PUT(K key, V value, long expireAfterWrite, TimeUnit timeUnit); default...extends V> map, long expireAfterWrite, TimeUnit timeUnit) { PUT_ALL(map, expireAfterWrite, timeUnit...extends V> map, long expireAfterWrite, TimeUnit timeUnit) { long t = System.currentTimeMillis...timeUnit) { CacheValueHolder cacheObject = new CacheValueHolder(value ,timeUnit.toMillis(

1971 0

聊聊httpclient的evict操作

maxIdleTimeUnit : TimeUnit.SECONDS, maxIdleTime, maxIdleTimeUnit); } public void...timeUnit) throws InterruptedException { thread.join((timeUnit !...timeUnit : TimeUnit.MILLISECONDS).toMillis(time)); } static class DefaultThreadFactory implements...* @param timeUnit time unit. */ public void closeIdle(final long idletime, final TimeUnit...timeUnit) { Args.notNull(timeUnit, "Time unit"); long time = timeUnit.toMillis(idletime

7464 0

springboot配置okhttp3

OkHttpClient.Builder builder = new OkHttpClient.Builder(); builder.connectTimeout(30, TimeUnit.SECONDS...) .readTimeout(30, TimeUnit.SECONDS) .writeTimeout(30,TimeUnit.SECONDS...OkHttpClient.Builder builder = new OkHttpClient.Builder(); builder.connectTimeout(30, TimeUnit.SECONDS...) .readTimeout(30, TimeUnit.SECONDS) .writeTimeout(30,TimeUnit.SECONDS...) .readTimeout(30, TimeUnit.SECONDS) .writeTimeout(30,TimeUnit.SECONDS

2.4K2 0

基准测试框架JMH使用详解

1.1K5 0

针对RedisTemplate实现WatchDog

timeUnit) throws KaToolException { if (ObjectUtil.isEmpty(obj)){...)){ timeUnit=lockConfig.getTimeUnit(); } //线程被锁住了...); log.info("katool=> LockUntil => DistributedLock:{} value:{} extime:{} timeUnit:{}"...finalTimeUnit = timeUnit; Long finalExptime = exptime;...); log.info("katool=> LockUntil => delayDistributedLock:{} value:{} extime:{} timeUnit

7822 1

缓存穿透、雪崩、击穿实践

stringRedisTemplate.opsForValue().set(key, JSONUtil.toJsonStr(shop), RedisConstants.CACHE_SHOP_TTL, TimeUnit.MINUTES...timeUnit){ stringRedisTemplate.opsForValue().set(key, JSONUtil.toJsonStr(value), time, timeUnit...} /** * 逻辑过期时间 * @param key * @param value * @param time * @param timeUnit...*/ public void setWithLogicalExpire(String key, Object value, Long time, TimeUnit timeUnit)...); return null; } //写入缓存设置超时时间为30min this.set(key, r, time, timeUnit

3351 0

聊聊artemis的CriticalAnalyzerPolicy

unit); long getCheckTimeNanoSeconds(); CriticalAnalyzer setTimeout(long timeout, TimeUnit unit...); long getTimeout(TimeUnit unit); long getTimeoutNanoSeconds(); CriticalAnalyzer addAction...unit) { return this; } @Override public long getTimeout(TimeUnit unit) { return...unit) { if (timeoutNanoSeconds == 0) { timeoutNanoSeconds = TimeUnit.MINUTES.toNanos(...2); } return unit.convert(timeoutNanoSeconds, TimeUnit.NANOSECONDS); } @Override

3432 0

实战抽象工厂模式

timeUnit) { logger.info("Redis写入数据 key：{} val：{} timeout：{} timeUnit：{}", key, value, timeout...timeUnit) { logger.info("IIR写入数据 key：{} val：{} timeout：{} timeUnit：{}", key, value, timeout,...timeUnit) { logger.info("EGM写入数据 key：{} val：{} timeout：{} timeUnit：{}", key, value, timeout,...timeUnit) { egm.setEx(key, value, timeout, timeUnit); } public void del(String key)...timeUnit) { iir.setExpire(key, value, timeout, timeUnit); } public void del(String

1871 0

如何实现一个定时器

Timer: using System; using UnityEngine; /// /// 时间单位 /// public enum TimeUnit {...">时间单位 /// 是否循环 public Timer(float duration, TimeUnit timeUnit = TimeUnit.SECOND..., bool loop = false) { switch (timeUnit) { case TimeUnit.MILLSECOND: this.duration = duration.../ 1000; break; case TimeUnit.SECOND: this.duration = duration; break; case TimeUnit.MINUTE...: this.duration = duration * 60; break; case TimeUnit.HOUR: this.duration = duration

3871 0

求求你，别再开发的时候一用redis分布式锁，就急着去复制粘贴了！lua脚本的实现思路

timeUnit, long time); /** * 上锁 * @param lockName 锁名称 * @param lockValue 锁值...* @param timeUnit 时间单位 * @param time 时间 */ void lock(String lockName, String lockValue,...TimeUnit timeUnit, long time); /** * 线程解锁 * @param lockName 即将解锁的锁名称 */ void...timeUnit, long time) { Jedis jedis = pool.getResource...timeUnit, long time) { if (tryLock(lockName,lockValue,timeUnit,time)) { return;

7033 0

重新说说Redis实现分布式公平可重入锁的实现，这次具体说说异步唤醒机制，这次带上QPS检测

timeUnit,String[] hashkey){ long id = Thread.currentThread().getId();...> submitTask(Runnable run, long delay, TimeUnit timeUnit){ ScheduledFuture submitTask(Callable run, long delay, TimeUnit timeUnit){ ScheduledFuture submitTask(Runnable run,long initdeay, long delay, TimeUnit timeUnit){ ScheduledFuture submitTask(Callable run,long initdeay, long delay, TimeUnit timeUnit){ ScheduledFuture<?

1K11 0

SpringBoot 整合 Mini

@param bucketName 存储桶名称 * @param objectName 对象名称 * @param getUrlTime 访问文件路径时间 * @param timeUnit...String getUrlByBucketNameAndObjectNameAndTime(String bucketName, String objectName, int getUrlTime, TimeUnit...timeUnit); /** * 根据对象名称和桶名称删除对象 * * @param bucketName 桶名称 * @param objectName 对象名称...timeUnit) { return this.getUrl(bucketName, objectName, getUrlTime, timeUnit); } @Override...timeUnit) { try { return minioClient.getPresignedObjectUrl(

3121 0

Java避坑指南：多线程批量调用下游接口，如何正确设置总超时时间

JdkDemo { private static final ThreadPoolExecutor poolExecutor = new ThreadPoolExecutor(10, 100, 100, TimeUnit.SECONDS...(Future integerFuture : futures) { try { integerFuture.get(15, TimeUnit.SECONDS...java.util.concurrent.Future#get(long, java.util.concurrent.TimeUnit)方法是对每个任务的超时时间设置，而不是对总任务设置超时时间。...线程池invokeAll的原理其实是动态改动了java.util.concurrent.Future#get(long, java.util.concurrent.TimeUnit)设置的超时时间，每次都会设置为...：任务截止时间减去当前时间，如下图源码所示：正确做法：使用CompletableFuture 使用CompletableFuture.allOf(......).get(15L, TimeUnit.SECONDS

9771 0

点击加载更多

有意思的TimeUnit

通过java.util.concurrent.TimeUnit来学习枚举

ReentrantLock的lock(), tryLock(), tryLock(long timeout, TimeUnit unit), lockInterruptibly() 及使用场景示例

RxJava 之 TestScheduler

聊聊httpclient的evict操作

RxJava 过滤操作符

聊聊jetcache的MultiLevelCache

聊聊jetcache的MultiLevelCache

聊聊httpclient的evict操作

springboot配置okhttp3

基准测试框架JMH使用详解

针对RedisTemplate实现WatchDog

缓存穿透、雪崩、击穿实践

聊聊artemis的CriticalAnalyzerPolicy

实战抽象工厂模式

如何实现一个定时器

求求你，别再开发的时候一用redis分布式锁，就急着去复制粘贴了！lua脚本的实现思路

重新说说Redis实现分布式公平可重入锁的实现，这次具体说说异步唤醒机制，这次带上QPS检测

SpringBoot 整合 Mini

Java避坑指南：多线程批量调用下游接口，如何正确设置总超时时间

相关资讯

热门标签

活动推荐

运营活动

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐