案例——网页计数器JavaBean的设计与使用

 1 //Count.java
 2 package beans;
 3 
 4 public class Count {
 5     private int count;
 6     public Count(){count=0;}
 7     public int getCount(){
 8         count++;
 9         return count;
10     }
11     public void setCount(int count){this.count=count;}
12 }

//count1.jsp
<%@ page language="java" pageEncoding="UTF-8"%>
<html>
    
    <title>网页访问数量</title>
  </head>
  
  <body>
    <jsp:useBean id="count" scope="application" class="beans.Count"/>
        这次访问的是第1个页面：count1.jsp!<br>
        两页面共被访问次数：
    <jsp:getProperty name="count" property="count"/>
    
  </body>
</html>

//count2.jsp
<%@ page language="java" pageEncoding="UTF-8"%>
<html>
    
    <title>网页访问数量</title>
  </head>
  
  <body>
    <jsp:useBean id="count" scope="application" class="beans.Count"/>
        这次访问的是第2个页面：count2.jsp!<br>
        两页面共被访问次数：
    <jsp:getProperty name="count" property="count"/>
    
  </body>
</html>

posted on 2017-10-30 20:56 小星_log 阅读(391) 评论(0) 收藏举报