----------------------------------------------------------------------------------- ByteArrayInputStream 类声明:public class ByteArrayInputStream extends InputStream位于java.io包下官方对其说明: A ByteArrayInputStream contains an internal buffer that contains byt
字节输入流:InputStream 类声明: public abstract class InputStream implements Closeable 位于java.io包下,是一个抽象类. 官方对其说明: This abstract class is the superclass of all classes representing an input stream of bytes. (简单翻译:抽象类InputStream是所有字节输入流的父类) 主要方法: - int availab
ActiveMQ是一个消息中间件,对于消费者而言有两种方式从消息中间件获取消息: ①Push方式:由消息中间件主动地将消息推送给消费者:②Pull方式:由消费者主动向消息中间件拉取消息.看一段官网对Push方式的解释: To be able to achieve high performance it is important to stream messages to consumers as fast as possible so that the consumer always has a