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Netty仅为网络提供非阻塞IO是真的吗？

[英]Is it true that Netty provides non-blocking IO only for network?

原文 2017-10-28 13:07:41 5 1 java/ io/ netty/ nio

Is my understanding correct that Netty provides non-blocking io (NIO) only for network? 我的理解正确吗，Netty仅为网络提供了非阻塞io（NIO）？ And if you want to make a blocking io (ie database query), you have to use executer from ChannelHandlerContext in order to not to block EventLoop? 而且，如果要进行阻塞io（即数据库查询），则必须使用ChannelHandlerContext中的executer才能不阻塞EventLoop？

1 个解决方案

Is my understanding correct that Netty provides non-blocking io (NIO) only for network? 我的理解正确吗，Netty仅为网络提供了非阻塞io（NIO）？

It would be more accurate to say that Java only provides non-blocking I/O for network channels. 准确地说Java只为网络通道提供非阻塞I / O。 See the list of classes which extend SelectableChannel . 请参阅扩展SelectableChannel的类列表。

And if you want to make a blocking io (ie database query), you have to use executer from ChannelHandlerContext in order to not to block EventLoop? 而且，如果要进行阻塞io（即数据库查询），则必须使用ChannelHandlerContext中的executer才能不阻塞EventLoop？

Yes. 是。