R & D Three-Layers System Structure based On J2EE
Teng Yingyan · Liaoning Taxation College Journal · 2002
The feature of the three-layer structure is adding a middle-ware layer. It carries the application program running on the client end into the middle-ware layer.The client only displays the user interface and deals a little of data processing.The client carries the information (requests) to the middle-ware server,which feels back the results to the client affer it has dealt with the operation (including the operation of the database).