《JAVA并发编程实战》读后感

一个类是线程安全的，是指在被多个线程访问时，类可以持续的进行正确的行为。


顺序执行转为并行执行:

				if (null != userConnList && userConnList.size() > 0) {
						for (UserConn userConn : userConnList) {
							taskServiceConsumer.pushMsg(pushInfo, userConn);
						}
					}

    static final ExecutorService executor = Executors.newFixedThreadPool(10);

					if (null != userConnList && userConnList.size() > 0) {
						for (UserConn userConn : userConnList) {
							Runnable task = new Runnable() {
								@Override
								public void run() {
									taskServiceConsumer.pushMsg(pushInfo, userConn);
								}
							};
							executor.submit(task);
						}
					}