use MVC bean with 3-tiers

UserManager
...........\.classpath
...........\.project
...........\build
...........\.....\classes
...........\.....\.......\usermanager
...........\.....\.......\...........\access
...........\.....\.......\...........\......\mapper
...........\.....\.......\...........\......\......\AccountMapper.class
...........\.....\.......\...........\......\......\MapperDB.class
...........\.....\.......\...........\beans
...........\.....\.......\...........\.....\UserBean.class
...........\.....\.......\...........\bo
...........\.....\.......\...........\..\AccountBO.class
...........\.....\.......\...........\communication
...........\.....\.......\...........\.............\database
...........\.....\.......\...........\.............\........\ConnectionService.class
...........\.....\.......\...........\dto
...........\.....\.......\...........\...\AccountDTO.class
...........\.....\.......\...........\servlets
...........\.....\.......\...........\........\DeleteUserServlet.class
...........\.....\.......\...........\........\InsertUserServlet.class
...........\.....\.......\...........\........\ListUserServlet.class
...........\.....\.......\...........\........\LoginServlet.class
...........\.....\.......\...........\........\LogoutServlet.class
...........\.....\.......\...........\........\SearchUserServlet.class
...........\.....\.......\...........\........\UpdateUserServlet.class
...........\.....\.......\...........\........\ViewUserServlet.class
...........\.....\.......\...........\utility
...........\.....\.......\...........\.......\UserManagerProperties.class
...........\src
...........\...\usermanager
...........\...\...........\access
...........\...\...........\......\mapper
...........\...\...........\......\......\AccountMapper.java
...........\...\...........\......\......\MapperDB.java
...........\...\...........\beans
...........\...\...........\.....\UserBean.java
...........\...\...........\bo
...........\...\...........\..\AccountBO.java
...........\...\...........\communication
...........\...\...........\.............\database
...........\...\...........\.............\........\ConnectionService.java
...........\...\...........\dto
...........\...\...........\...\AccountDTO.java
...........\...\...........\servlets
...........\...\...........\........\DeleteUserServlet.java
...........\...\...........\........\InsertUserServlet.java
...........\...\...........\........\ListUserServlet.java
...........\...\...........\........\LoginServlet.java
...........\...\...........\........\LogoutServlet.java
...........\...\...........\........\SearchUserServlet.java
...........\...\...........\........\UpdateUserServlet.java
...........\...\...........\........\ViewUserServlet.java
...........\...\...........\utility
...........\...\...........\.......\UserManagerProperties.java
...........\WebContent
...........\..........\index.jsp
...........\..........\jsp
...........\..........\...\AdminFunctions.jsp
...........\..........\...\CreateUser.jsp
...........\..........\...\ListUsers.jsp
...........\..........\...\Login.jsp
...........\..........\...\SearchUsers.jsp
...........\..........\...\ViewUser.jsp
...........\..........\META-INF
...........\..........\........\MANIFEST.MF
...........\..........\WEB-INF
...........\..........\.......\lib
...........\..........\.......\sun-web.xml
...........\..........\.......\web.xml

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