The system is consisted of data uploading and image processing. Java Applet access DB by JDBC three-tier architecture,and image processing is implemented by using Java AWT and2D API.

• 系统由数据读取和图象处理两部分组成,JavaApplet读取数据是利用JDBC三层模式来实现的,图象处理功能的实现主要使用JavaAWT和Java2DAPI。