getpasswordservlet.java

一个由B/S做的宠物医院

package pethospitalsystem;

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

public class GetPasswordServlet 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);
        request.setCharacterEncoding("GBK");
        //得到第1个表单的数据.
        String username=request.getParameter("username");
        String year=request.getParameter("year");
        String month=request.getParameter("month");
        String day=request.getParameter("day");
        String date=year+"-"+month+"-"+day;
        UserInfoDaoBean uidb=new UserInfoDaoBean();
        uidb.uib.setUserName(username);
        uidb.uib.setUBirthday(date);
        //得到返回的密码提示问题,并将密码提示问题传给下一个页面.
        String PwdQuestion=uidb.getPasswordOne();
        //此处将PwdQuestion先进行编码处理，不然传中文时会出错.用此方法时必须保证页面的编码都是GBK.
        PwdQuestion=java.net.URLEncoder.encode(PwdQuestion,"UTF-8");
        if(!PwdQuestion.equals("")){
            response.sendRedirect("GetPassword2.jsp?PwdQuestion="+PwdQuestion+"&username="+username);
        }else{
            response.sendRedirect("ErrorShow.jsp");
        }
    }

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

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