47 lines
1.4 KiB
Java
47 lines
1.4 KiB
Java
package com.genersoft.iot.vmp.conf;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.context.annotation.Bean;
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import org.springframework.scheduling.concurrent.ThreadPoolTaskScheduler;
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import org.springframework.stereotype.Component;
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import java.util.Map;
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import java.util.concurrent.ConcurrentHashMap;
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import java.util.concurrent.ScheduledFuture;
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/**
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* 动态定时任务
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*/
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@Component
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public class DynamicTask {
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@Autowired
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private ThreadPoolTaskScheduler threadPoolTaskScheduler;
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private Map<String, ScheduledFuture<?>> futureMap = new ConcurrentHashMap<>();
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@Bean
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public ThreadPoolTaskScheduler threadPoolTaskScheduler() {
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return new ThreadPoolTaskScheduler();
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}
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public String startCron(String key, Runnable task, int cycleForCatalog) {
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stopCron(key);
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// scheduleWithFixedDelay 必须等待上一个任务结束才开始计时period， cycleForCatalog表示执行的间隔
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ScheduledFuture future = threadPoolTaskScheduler.scheduleWithFixedDelay(task, cycleForCatalog * 1000L);
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futureMap.put(key, future);
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return "startCron";
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}
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public void stopCron(String key) {
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if (futureMap.get(key) != null && !futureMap.get(key).isCancelled()) {
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futureMap.get(key).cancel(true);
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}
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}
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public boolean contains(String key) {
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return futureMap.get(key) != null;
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}
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}
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