jsp 和javabean结合的程序有问题
javabean部分
package javabean;
import java.util.*;
public class GuessGame {
int answer;
int guess;
boolean success;
String info;
int counter;
public GuessGame() {
reset();
}
public void setGuess(String guess) {
counter++;
try {
this.guess = Integer.parseInt(guess);
}
catch (NumberFormatException e) {
this.guess = -1;
}
if (this.guess == answer) {
success = true;
}
else if (this.guess == -1) {
info = "出错，再猜一次！";
}
else if (this.guess < answer) {
info = "您猜的价格小了！";
}
else if (this.guess > answer) {
info = "您猜的价格大了！";
}
if(this.guess >1000){
info="请输入1到1000之间的数字！！";
}
}
//返回值
public boolean getSuccess() {
return success;
}
//获得信息
public String getInfo() {
return info;
}
//获得计数器值
public int getCounter() {
return counter;
}
//获得答案
public int getAnswer(){
return answer;
}
public void reset() {
answer = Math.abs(new Random().nextInt() % 1000) + 1;
success = false;
counter = 0;
}
}
JSP部分：
<%@ page language="java" import="java.util.*" pageEncoding="gb2312"%>
<%@page contentType="text/html,charset=gb2312" %>
<%@page import="javabean.GuessGame"%>
<html>
<body>
This is my JSP page. <br>
<jsp:useBean id= "guessgame" class="GuessGame" scope="session" >
</jsp:useBean>
<jsp:setProperty name="guessgame" property="*" /><br>
<%
if(game.getCounter()==0)
{
%>
<center>
<font size = "4" color = "red">猜价格</font>
<hr>
<p align="center"><img src = "image.cake.jpg"alt="蛋糕"width="400"height="300"border="3"></p>
<form method = "get">
<b>请输入价格</b>
<input type ="text" name ="guess">
<input type = "submit" value="确定">
</form></center>
<%
}
else if(guessgame.getSuccess())
{
%>
<center><b>猜对了，它归你了。你猜了<%=guessgame.getCounter() %>次</b>
<br>
<a href = "testGuest.jsp">再来一次？</a></center>
<%
guessgame.reset();
}
else{
%>
<form method ="get">
<center><b>
继续努力，<%= guessgame.getInfo() %>
你已经猜了 <%= guessgame.getCounter()%>次
<br>
<input type = "text" name="guess">
<input type = "submit" value="确定">
输入你猜的价格
</b></center>
</form>
<%
}
%>
</body>
</html>
答案：有可能
1：通过name查找，有重复
2：添加的点击事件的写法，当前浏览器不支持
其他：<jsp:useBean id= "guessgame" class="javabean.GuessGame" scope="session" >
if(guessgame.getCounter()==0)
好像还有错误，我没找出来，你仔细看看代码
<%@page contentType="text/html;charset=gb2312" %>
这个中间是“;”,不是逗号，终于找到了
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