queryallteachersaction.java

学生信息管理系统

package action;
import java.io.*;
import java.util.*;
import vo.TeacherVO;
import dao.TeacherDao;
import javax.servlet.*;
import javax.servlet.http.*;
public class QueryAllTeachersAction extends HttpServlet
{
	public void doGet(HttpServletRequest request ,HttpServletResponse response)throws IOException ,ServletException
	{
		if(request.getParameter("submit")!=null)
		{
			TeacherDao teacherdao=new TeacherDao();
			ArrayList teachers=(ArrayList)teacherdao.getTeachers();
			HttpSession session=request.getSession(true);
			session.setAttribute("allteachers",teachers);
			this.getServletContext().getRequestDispatcher("/QueryAllTeachersResult.jsp").forward(request,response);
		}
	}
	public void doPost(HttpServletRequest request ,HttpServletResponse response)throws IOException ,ServletException
	{
		doGet(request,response);	
	}
}