电脑开机提示错误恢复:高手帮忙看下我的使用usebean做加减乘除运算的jsp代码问题出在哪里

来源:百度文库 编辑:中科新闻网 时间:2024/05/06 19:02:35
//5.jsp
<html>
<head>
<title>
返回两个数加减乘除的结果
</title>
</head>
<body><center>
请输入两个整数:<form method="post" action="4.jsp">
<input type="text" size=20 name="a">
<input type="text" size=20 name="b">
<p>
<center>
<input type="submit" name="Submit" value="计算"></center>
</form>
</center>
</body>
</html>

//count.java
package exp;
import java.util.*;
public class count {

int add;
int sub;
int mul;
int div;

//
public int doAdd(int x,int y){
add=x+y;
return add;
}
//
public int doSub(int x,int y){
sub=x-y;
return sub;

}
//
public int doMul(int x,int y){
mul=x*y;
return mul;

}
public int doDiv(int x,int y){
div=x/y;
return div;
}
}

//4.jsp
<%@ page language="java" import="java.lang.*" %>
<html>
<head>
<title>使用useBean做四则运算</title>
</head>

<body>
<jsp:useBean id="count" class="exp.count" scope="page" />
<% int x=Integer.parseInt(request.getParameter("a"));
int y=Integer.parseInt(request.getParameter("b"));

%>
<%
int m=count.doAdd(x,y);
out.print("x+y="+m);
%>

<%
int n=count.doSub(x,y);
out.print("x-y="+n);
%>

<%
int p=count.doMul(x,y);
out.print("x*y="+p);
%>

<%
int q=count.doDiv(x,y);
out.print("x/y="+q);
%>
</body>
</html>
总是调试不通,麻烦高手指点迷津!谢谢!

把出错的log发出来看看