求任意两个数的累加值(JSP+Servlet+JavaBean)

(1)ch07_8_Add2:

package ch07_8;

public class ch07_8_Add2{
private int a;
private int b;
public ch07_8_Add2(int d1,int d2){
   this.a=d1;
   this.b=d2;
}
public int getA(){return a;}
public void setA(int a){this.a=a;}
public int getB(){return b;}
public void setB(int b){this.b=b;}
public int sum(){
   int c,s=0;
   if(a>b){c=a;a=b;b=c;}
   int x=a;
   while(x<=b){
       s+=x;
       ++x;
       }
   return s;
}

}

(2)ch07_8_tijiao:

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>提交任意2个整数给Servlet的页面</title>
</head>

<body>
<h3>按下列格式要求，输入两个整数数据:</h3><br>
<form action="ch07_8_servlet_yunsuan" method="post">
数据1:<input name="shuju1"><br><br>
数据2:<input name="shuju2"><br><br>
<input type=submit value="提交">
</form>
</body>
</html>

(3)cho7_8_servlet_yunsuan:

package ch07_8;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class ch07_8_servlet_yunsuan extends HttpServlet {

   public ch07_8_servlet_yunsuan() {
       super();
   }

   public void destroy() {
       super.destroy(); // Just puts "destroy" string in log
       // Put your code here
   }

   public void doGet(HttpServletRequest request, HttpServletResponse response)
           throws ServletException, IOException {

       request.setCharacterEncoding("GB2312");
       String s1=request.getParameter("shuju1");
       String s2=request.getParameter("shuju2");
       int d1=Integer.parseInt(s1);
       int d2=Integer.parseInt(s2);
       ch07_8_Add2 two=new ch07_8_Add2(d1,d2);
       int sum=two.sum();
       request.setAttribute("d1", d1);
       request.setAttribute("d2", d2);
       request.setAttribute("sum", sum);
       request.getRequestDispatcher("ch07_8_show.jsp").forward(request, response);
   }

   public void doPost(HttpServletRequest request, HttpServletResponse response)
           throws ServletException, IOException {

doGet(request,response);
}

   public void init() throws ServletException {
       // Put your code here
   }

}

(4)ch07_8_show:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>只显示两数之间累加值的页面</title>
</head>

<body>
<%String s1=request.getParameter("shuju1");
String s2=request.getParameter("shuju2");
Integer d1=(Integer)request.getAttribute("d1");
Integer d2=(Integer)request.getAttribute("d2");
Integer sum=(Integer)request.getAttribute("sum");
%>
<p><%=d1 %>加到<%=d2 %>的和值是:<%=sum %></p>
<p>现在的时间是:<%=new Date() %></p>
</body>
</html>

求任意两个数的累加值(JSP+Servlet+JavaBean)

猜你喜欢