hospitalservlet.java~36~

这是java编写宠物医院项目

package hospital;

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

public class hospitalServlet extends HttpServlet {
    private static final String CONTENT_TYPE = "text/html; charset=UTF-8";

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

    //Process the HTTP Get request
    public void doGet(HttpServletRequest request, HttpServletResponse response) throws
            ServletException, IOException {
        request.setCharacterEncoding("utf-8");
        response.setContentType(CONTENT_TYPE);
        PrintWriter out = response.getWriter();
        String method=request.getParameter("method").trim();
        HospitalDAO dao=new HospitalDAO();
        String patch="/hospital/";
        if(method.equals("")){
            patch+="hospital.jsp";
        }else if(method.equals("hospname")){
            String name=request.getParameter("name").trim();
            if(name==null || name.equals("")){
                Collection c=dao.hospital_info();
                Iterator it=c.iterator();
                request.setAttribute("hosp",it);
                patch+="hospital_sel.jsp";
            }else{
                 Collection c=dao.hospital_pet_name(name);
                if(c!=null){
                    Iterator it=c.iterator();
                    request.setAttribute("hosp",it);
                    patch+="hospital_sel.jsp";
                }else{
                    patch+="hospital_sel.jsp?result=false";
                }
            }
        }else if(method.equals("up_name")){
            String name =request.getParameter("name").trim();
            if(name==null || name.equals("")){
                patch+="hospital_sel.jsp?result=false";
            }else{
                Collection c=dao.hospital_pet_name(name);
                if(c==null){
                   patch+="hospital_sel.jsp?result=false";
                }else{
                    Iterator it =c.iterator();
                    request.setAttribute("hosp",it);
                    patch+="hospital_up.jsp";
                }
            }
        }else if(method.equals("hospup")){
            String id=request.getParameter("id").trim();
            String vid=request.getParameter("vid").trim();
            String pid=request.getParameter("pid").trim();
            String  hosp=request.getParameter("hospital").trim();
            if(id==null|| id)
            HospitalVO vo=new HospitalVO();
            vo.setVid(Integer.parseInt(vid));
            vo.setPid(Integer.parseInt(pid));
            vo.setHospital(hosp);
            vo.setId(Integer.parseInt(id));
            if(dao.hosp_update(vo)){
                patch += "hosp_cl.jsp?eorr=true";
            }else{
                 patch+="hosp_cl.jsp?eorr=false";
            }
        }else if(method.equals("hospadd")){
            String vid=request.getParameter("vid").trim();
            String pid=request.getParameter("pid").trim();
            String hosp=request.getParameter("hosp").trim();
            System.out.println("鐥呭洜= "+hosp);
            if(vid==null || vid.equals("") || pid==null || pid.equals("") ||hosp==null ||
               hosp.equals("")){
                patch+="hosp_cl.jsp?result=false";
            }else{
                HospitalVO vo=new HospitalVO();
                vo.setVid(Integer.parseInt(vid));
                vo.setPid(Integer.parseInt(pid));
                vo.setHospital(hosp);
                if(dao.hospital_add(vo)){
                    patch+="hosp_cl.jsp?result=true";
                }else{
                   patch+="hosp_cl.jsp?result=false";
                }
            }
        }else {
            patch+="hospital.jsp";
        }
        System.out.println("method   =   "+method);
        System.out.println("patch    =   "+patch);
        RequestDispatcher rd = request.getRequestDispatcher(patch);
        rd.forward(request, response);

    }

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

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