Introduction - If you have any usage issues, please Google them yourself
Graphics components and the formation of the database connection points line plan needs painting environment: 1.jdk1.4 and above 2.web server tomcat weblogic resin, etc. 3. Need libraries jcommon-1.0.0-pre2.jar jfreechart-1.0.0-pre2.jar servlet-api.jar the three libraries were encapsulated