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JSP复习整理（五）JavaBean
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>Viewer15 </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
JSP复习整理（五）JavaBean
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