java项目中如何开起线程池

1、手动开启多线程:就是循环new Thread (Runnable).start()

2、利用线程池(ExecutorService)开启多线程:线程池的创建有三大类:ExecutorService = Executor.newCachedThreadPoolExecutorService = Executor.newFixedThreadPoolExecutorService = Executor.newsingleThreadExecutor

3、调用线程工厂去创建的Executor.DefaultThreadFactory()

4、也可以自已去实现线程工厂:MyThreadFactory implements ThreadFactory{ void newThread()}线程工厂也是返回new Thread (Runnable)

5、希望我的经验对你有所帮助