(After completing the course, you can: ① master the basic technical knowledge of netty; ② let you go from an excellent programmer to an architect; ③ quickly build the netty high concurrency rpc architecture of the Internet; ④ go on the path of high salaries for programmers; if you can't solve the problem, come to My Love Open Source and have a look, there will be materials or software you need, tutorials, patches, source code, etc)