package com.rlovep.exec;
import java.io.IOException;
import java.util.Random;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet implementation class GuessServlet
*/
public class GuessServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
//产生一个幸运数字
int answer;
/**
* 新游戏方法。产生一个新的幸运数字
*/
public void newGame(){
Random random = new Random();
answer = random.nextInt(30);
}
/**
* @see HttpServlet#HttpServlet()
*/
public GuessServlet() {
newGame();
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
response.setContentType("text/html;charset=utf-8");
//1.接收输入的数字
String lucyNoStr = request.getParameter("lucyNo");
System.out.println("答案:"+answer);
Integer lucyNo = null;
//2.判断幸运数字和用户的数字
//2.1 把用户输入的数字转成整数
if(lucyNoStr!=null || !lucyNoStr.equals("")){
lucyNo = Integer.parseInt(lucyNoStr);
}
//标记记录当前竞猜的次数
Integer times = 1;//初始值
//接收客户当前竞猜次数
String timesStr = request.getParameter("times");
if(timesStr!=null && !timesStr.equals("")){
times = Integer.parseInt(timesStr)+1;
}
if(times<5){
String msg = "";
//比较
if(lucyNo>answer){
//大了
msg = "可惜,大了点";
}else if(lucyNo<answer){
//小了
msg = "可惜,小了点";
}else if(lucyNo==answer){
//等于,中奖
msg = "恭喜你,中得1000000元现金大奖,请带身份证到xxx地方领奖!";
times = null;
}
//把当前竞猜的次数放入域对象
request.setAttribute("times", times);
//把信息放入域对象中
request.setAttribute("msg", msg);
}else{
//产生新的幸运数字
newGame();
//游戏结束
response.getWriter().write("游戏结束。<a href='"+request.getContextPath()+"/guess.jsp'>再来一盘</a>");
return;
}
//转发
request.getRequestDispatcher("/guess.jsp").forward(request, response);
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
doGet(request, response);
}
}