delclass.java

该系统采用B/S架构设计的一个小型的通讯录系统

package servlet;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;

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

import DAO.dao;

public class DelClass extends HttpServlet {

	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		response.setContentType("text/html");
		PrintWriter out = response.getWriter();
		int id = Integer.parseInt(request.getParameter("id").toString());
		dao dao = new dao();
		int n = dao.delconn(id);
		if(n>0){
			out.print("<script type='text/javascript'>window.alert('删除成功');</script>");
		}else{
			out.print("<script type='text/javascript'>window.alert('很抱歉删除失败');</script>");
			request.getRequestDispatcher("/card_list.jsp").forward(request, response);
		}
		ArrayList arrayList = dao.card_list();
		request.setAttribute("linkMan", arrayList);
		request.getRequestDispatcher("/card_list.jsp").include(request, response);
	}

	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

	}

}