delservlet.java

网上购书系统 采用jsp+servlet+sql2000

package servlet;

import java.io.IOException;
import java.sql.Connection;
import java.sql.PreparedStatement;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import base.DaoBase;



public class Delservlet extends HttpServlet {

	@Override
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		int id=Integer.parseInt(request.getParameter("id"));
		DaoBase daobase=new DaoBase();
		Connection conn=daobase.getConn();
		try{
			String sql="delete from [order] where id="+id;
			PreparedStatement psta=conn.prepareStatement(sql);
			psta.executeUpdate();
		}catch(Exception ex){
			ex.printStackTrace();
		}finally{
			daobase.closeConn();
		}
		
		request.getRequestDispatcher("order").forward(request, response);
	}

	@Override
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		super.doGet(request, response);
	}
}