java.nio.channels.IllegalBlockingModeException
相关错误代码：
class Handler {
public Handler(Selector selector, SocketChannel socketChannel) throws InterruptedException {
try {
SelectionKey key = socketChannel.register(selector, SelectionKey.OP_READ);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// while (true) {
// System.out.println("Handler");
// Thread.sleep(1000);
// }
socketChannelMap.put(socketChannel.hashCode(), socketChannel);
System.out.println("Handler end" + socketChannel.hashCode() + "," + socketChannelMap.size());
}
}
发生错误语句：
SelectionKey key = socketChannel.register(selector, SelectionKey.OP_READ);错误原因：
必须设置通道为 非阻塞，才能向 Selector 注册。
解决方法：
在发生错误的语句前添加：
socketChannel.configureBlocking(false);注意参数值，false 为 非阻塞，true 为 阻塞。
