checkdept.java

还是超市系统

package checkdept;

import java.io.*;
import java.sql.*;
import javax.servlet.*;
import javax.servlet.http.*;
import oracle.OracleBean;

public class Checkdept extends HttpServlet{
	
	public void doGet(HttpServletRequest req,HttpServletResponse res)
		throws ServletException,IOException{
			
			oracle.OracleBean conn = new oracle.OracleBean();
			ResultSet rs = null;
			
			HttpSession session = req.getSession();
			
			
			try{
				String sql = "select dept_name from table_dept where dept_id="+session.getAttribute("deptId");
				rs = conn.query(sql);
				System.out.println(rs);
				
				session.setAttribute("rs",rs);
			}catch(Exception e){
				e.printStackTrace();
			}
			getServletConfig().getServletContext().getRequestDispatcher("/supermaket/mainpage.jsp").forward(req,res);
		}
		
	public void doPost(HttpServletRequest req,HttpServletResponse res)
		throws ServletException,IOException{
			doGet(req,res);
		}
}