多线程的任务常用线程池

本篇记录了关于多线程任务使用过的线程池

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ForkJoinPool

使用ForkJoinPool的好处在于能遍历把任务拆分为各个小单元任务，进而缓解服务器压力

ForkJoinPool示例代码

//实现类
class ComputeTask extends RecursiveTask<Object>{
		private List<List<String>> list;
		private int start;
		private int end;

		public ComputeTask(List<List<String>> list, int start, int end) {
			this.list = list;
			this.start = start;
			this.end = end;
		}

		@Override
		protected Object compute() {
			if(end - start < 10) {
			    //业务代码
				return Boolean.TRUE;
			}else {
			    //循环调用
				int middle = (start + end) / 2;
				ComputeTask leftTask = new ComputeTask(list, start, middle);
				ComputeTask rightTask = new ComputeTask(list, middle+1, end);
				leftTask.fork();
				rightTask.fork();
				leftTask.join();
				rightTask.join();
				return null;
			}
		}
	}
class runClass {
    
     public static void main( String[] args ) {
        ComputeTask task = new ComputeTask(list, 0, list.size()-1);
        ForkJoinPool forkJoinPool = new ForkJoinPool();
        ForkJoinTask<Object> result = forkJoinPool.submit(task);
        result.get();
     }
        
}