iOS Development--network programming confluence

As for the network programming of iOS, we all think of a library such as BSD, Cfnetwork and Nsurl, although many third-party libraries are now very handy, but as a developer, you need to know the underlying code.

The following mind map is about the current development of the use of a variety of protocol communication implementation, data interchange format written, including the comparison of the underlying CF library implementation, but also contains a third-party library introduction.

About the demo, because the server is written in Java, we can find the code on the Internet to wake up, client demo can still find me to