IO

BIO和NIO的区别

BLOCKING I/O，阻塞的IO。

• server端调用accpet方法接受一个请求，当没有请求时会一直阻塞。

ServerSocketChannel serverSocketChannel = ServerSocketChannel.open();
serverSocketChannel.bind(new InetSocketAddress(8080));

try (SocketChannel socketChannel = serverSocketChannel.accept()) {