web实验报告.应用Javabean完成一个计算器的制作.利用连接池实现一个数据库的访问连接-web experiment report. applications Javabean completed production of a calculator. implement a database connection pool access connection

采用JSP+Servlet+JavaBean架构，设计通过JSP页面访问数据库，实现对数据增删改查等相应功能-Using JSP+ Servlet+ JavaBean architecture, design by JSP page to access the , to achieve the data and other relevant functions CRUD