Programmer Think

  there are many Netty cases under Netty's io.netty.example package, which can be used for source code analysis and learning. Now use the Echo case under the package to analyze the startup process of Netty. The entry code is as follows: public final class EchoServer { static final boolean SSL = System.getProperty("ssl") != null; ...

I. Introduction to Selector Selector   Commonly referred to as selectors  ， Of course, you can also translate it into   Multiplexer  . It is one of the core components of Java NIO. It is used to check whether the state of one or more NiO channels is readable and writable. In this way, multiple channels can be managed by a ...

springboot integrates netty, uses slf4j's MDC to generate a traceId for link tracking, and sleuth works together [sleuth and MDC can choose not to use, so there is no need to write aop and annotations, and no need to introduce aop and sleuth]. 1: The jar you need to depend on (choose according to your needs) <!-- version management ...

Netty learning NIO learning I. three major components The core of Java NIO system is: channel and buffer. A channel represents an open connection to an IO device (e.g., file, socket). If you need to use NIO system, you need to obtain the channel used to connect IO devices and the buffer used to hold data. Then operate the buffer to proces ...

1. Channel 1.1 what is Channel Channel is similar to Stream. It is a two-way channel for reading and writing data.You can read data from the channel into the buffer or write data from the buffer into the channel. (channel only deals with buffer)The previous stream is either input or output, and channel is lower than stream. 1.2 common channel ...

catalogue Why is FastThreadLocal faster than ThreadLocal ThreadLocal ThreadLocalMap Linear detection method FastThreadLocal FastThreadLocalThread InternalThreadLocalMap   FastThreadLocal.set method FastThreadLocal.get method     Using FastThreadLocal based on FastThreadLocalThread is more efficient than using Thread Loc ...

1. Selection of overall architecture First of all, according to the requirements, I use the springboot+netty architecture, using a serial port to network port conversion module. Why use it like this? The Linux system is used during deployment. It is troublesome to install the driver under Linux, so the network port can save a lot of server con ...

brief introduction We know that although the HTTPS protocol does not force the use of HTTPS, for most browsers, if they want to use HTTPS, they must use HTTPS. Therefore, we need to know how to support HTTPS in netty's TLS. Extended protocols NPN and ALPN of TLS Http2 protocol is developed from spdy protocol. Both spdy and http2 have dev ...

1, NETTY bottom layer is implemented by NIO selector and epoll. Select, poll and epoll are IO multiplexing mechanisms. I/O multiplexing is a mechanism through which a process can monitor multiple descriptors. Once a descriptor is ready (generally read ready or write ready), it can notify the program to perform corresponding read-write opera ...

Java network programming Netty Analysis of Netty core source code Source code analysis of Netty startup process The overall understanding of the Demo source startup class of Echo program Source code analysis of NioEventLoopGroup ServerBootstrap creation and build process Source code analysis of bin ...