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一、创建一个JavaBean
UserBean.java
1 package jsp.test; 2 3 public class UserBean { 4 5 private String userName; 6 private String pwd; 7 private String name; 8 private String gender; 9 private int age; 10 private String email; 11 private String tel; 12 private String mphone; 13 public String getUserName() { 14 return userName; 15 } 16 public void setUserName(String userName) { 17 this.userName = userName; 18 } 19 public String getPwd() { 20 return pwd; 21 } 22 public void setPwd(String pwd) { 23 this.pwd = pwd; 24 } 25 public String getName() { 26 return name; 27 } 28 public void setName(String name) { 29 this.name = name; 30 } 31 public String getGender() { 32 return gender; 33 } 34 public void setGender(String gender) { 35 this.gender = gender; 36 } 37 public int getAge() { 38 return age; 39 } 40 public void setAge(int age) { 41 this.age = age; 42 } 43 public String getEmail() { 44 return email; 45 } 46 public void setEmail(String email) { 47 this.email = email; 48 } 49 public String getTel() { 50 return tel; 51 } 52 public void setTel(String tel) { 53 this.tel = tel; 54 } 55 public String getMphone() { 56 return mphone; 57 } 58 public void setMphone(String mphone) { 59 this.mphone = mphone; 60 } 61 62 63 64 }
二、JavaBean的生命周期---------1.page范围
Counter.java
1 package bean; 2 3 public class Counter { 4 public Counter(){ 5 } 6 private int count=0; 7 public int getCount() { 8 return count; 9 } 10 public void setCount(int count) { 11 count = count; 12 } 13 14 }
usingCounter.jsp
1 <%@ page language="java" contentType="text/html; charset=UTF-8" 2 pageEncoding="UTF-8"%> 3 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 4 <html> 5 <head> 6 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 7 <title>page 类型的生命周期</title> 8 </head> 9 <body> 10 <jsp:useBean id="count" scope="page" class="bean.Counter"/> 11 <font color="blue">Show:page</font><br><br> 12 <br>You are the 13 <font color=green> 14 <jsp:getProperty name="count" property="counter"/></font>Viewer 15 </body> 16 </html>
使用page计数器的值永远保持为1，不更新。。
三、JavaBean的生命周期-----------2.request
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原文地址：http://www.cnblogs.com/haixiaomei/p/OUC0941.html
