图片验证码，直接运行里面的test.jsp就可以运行了，验证码的图片背景在src包里面的方法里改-Image verification code, direct running inside test.jsp run, the verification code in the background of the picture src package approach in which reform

采用jsp+javabean+servlet的mvc模式测试数据库师范连接成功-Using jsp+javabean+servlet mvc mode test database the Teachers connection success