Java programming method example of TCP network communication

This paper describes the method of TCP network communication by Java programming. Share with you for your reference, as follows:

TCP (transmission control protocol) is a connection oriented, reliable and byte stream based transport layer communication protocol.

Defined by RFC 793 of IETF, in the simplified computer network OSI model, it completes the functions specified by the fourth transport layer.

The classes based on TCP network communication mainly include ServerSocket on the server side and socket on the client side.

Communication process:

Open the server and wait for the client connection -- > the client connects to the server -- > data communication.

Code implementation steps:

1. Create a server socket object or a client socket object. 2. Establish a connection between the server and the client. 3. Conduct file (data) communication through the input / output stream. 4. End the communication and close the resources.

A simple example, server:

client:

When running, the server should be started first, and then the client should be started. Usually, network communication will be intertwined with multithreading.

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