购物网站jsp完整源码免费,求jsp网上购物系统 数据库不限！！！！！

购物网站jsp完整源码免费,求jsp网上购物系统 数据库不限！！！！！详细介绍

<!--
.style1 {
font-size: 20px;
font-weight: bold;
}
-->

<%

request.setCharacterEncoding("GB2312");

String username=request.getParameter("username");

String password=request.getParameter("password");

String sql="select * from user where username=? and password=?";

pstm=conn.prepareStatement(sql);

pstm.setString(1,username);

pstm.setString(2,password);

rs=pstm.executeQuery();

if(rs.next())

{

session.setAttribute("id",rs.getInt("userid"));

int id=rs.getInt("userid");

session.setAttribute("username",rs.getString("username"));

session.setAttribute("realname",rs.getString("realname"));

session.setAttribute("address",rs.getString("address"));

session.setAttribute("phone",rs.getString("phone"));

}

Integer userid=(Integer)session.getAttribute("id");

// System.out.println(userid);

if(userid==null)

{

%>

<% }

else

{%>

<%}

%>