petvisitservlet.java

来自「宠物医院 JSP项目 我是一个初学者 请大家多多指教」· Java 代码 · 共 58 行

package servlet;

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import da0.*;
import dto.*;

public class PetVisitServlet extends HttpServlet {
    private static final String CONTENT_TYPE = "text/html; charset=GBK";

    //Initialize global variables
    public void init() throws ServletException {
    }

    //Process the HTTP Get request
    public void doGet(HttpServletRequest request, HttpServletResponse response) throws
            ServletException, IOException {
        response.setContentType(CONTENT_TYPE);
        PrintWriter out = response.getWriter();
        if (request.getParameter("action").equals("read")) {
            int pid = Integer.parseInt(request.getParameter("petid"));
            Petdao petdao = new Petdao();
            Ownersdto ownersdto = petdao.search(pid);
            ArrayList list = petdao.SearchVisit(pid);
            if (!ownersdto.equals("") && list.size() != 0) {

                request.setAttribute("ownersdto", ownersdto);
                request.setAttribute("list", list);
                request.getRequestDispatcher("view/petvisit.jsp").forward(
                        request, response);
            }
        } else if (request.getParameter("action").equals("add")) {
            int pid = Integer.parseInt(request.getParameter("petid"));

            Petdao petdao = new Petdao();
            Ownersdto ownersdto = petdao.search(pid);
            if (!ownersdto.equals("")) {
                request.setAttribute("ownersdto", ownersdto);
                request.getRequestDispatcher("view/newvisit.jsp").forward(
                        request, response);
            }
        }
        out.close();
    }

    //Process the HTTP Post request
    public void doPost(HttpServletRequest request, HttpServletResponse response) throws
            ServletException, IOException {
        doGet(request, response);
    }

    //Clean up resources
    public void destroy() {
    }
}