Java Instant Messenger System

Instant Messaging is currently the most popular way to communicate on the Internet,by the way various Instant Messaging software have been continuously appearing; Service provider offers more and more communication services nowadays. As the development of the Internet, Instant Messaging will perform a wider use and is growing up day after day. And inside the government, Instant Messaging getting more and more applies. As a simple communication tool, people are accustomed to run a Instant Messaging application at the work time.Along with E-government carrying on, at present government's service software are also more and more many. Recently, the rise is mainly to the structure of the BS program design trend. Because it have to open the browser to use and web page won't be update until refresh the browser. The result is a lot of important information and urgently working was missed; and more and more cooperation between the different departments at this time, how timely and effective communication has become a problem.Another problem which we must think of is cross-platform. Because the product primary market position is the government, although most government departments use Windows, but there are some other operating system, such as Linux. I have be familiar with the Java and its working environment, so consider using Java for the government to develop a intranet Instant Messaging systemThis product has all the functions that an Instant Messaging system should have, additionally add Work Reminder function in view of the above-mentioned application. Through the combination of various governments'service software, use the service software as data source; send all kind of working message to the responsible people's computer that make by service software. And popup a prompt window to remind the work will be completed. User click the prompt will open the browser and jump to the associated function page; this will avoid missing important work.This article first discusses the software structure and its communication model in...