Ajax-based Web Instant Communication System Design And Implementation

21st century is the era of networks. The popularity of internet has affected traditional communication means. Network instant message system is a popular product of the computer network development, and is the most common and most acceptable Web based network applications. Network instant message system has very wide range of applications, and is playing very important role in the development of internet, which brings a revolutionary change to people’s communication means.This paper first analyzes the status of research projects and related technologies. Then we process a detailed analysis of WEB instant message system design and implementation. Against the shortcomings of traditional instant communication system, we design and implement a Web instant message system based on Ajax, which can overcome the shortcomings of traditional instant message system.The paper does some tests on the designed system in the end, validate the safety and effectiveness of the system, which indicate that the system meet the requirements.