<% demo demo = new demo(); demo.setAge("12"); demo.setName("ming"); %><%=demo.getName()%><%=demo.getAge()%>
同jsp
直接传参即可
使用jsp:useBean指令可以直接调用类
<%-- Created by IntelliJ IDEA. User: ming Date: 19-3-14 Time: 下午9:19 To change this template use File | Settings | File Templates. --%> <%@ page contentType="text/html;charset=UTF-8" language="java" %> <jsp:usebean id="demo" scope="page" />
<% demo.setName("ming"); demo.setAge("12"); %><%=demo.getAge()%><%=demo.getName()%>
使用scope属性标记范围
当为post的时候,表示为只在本页生效.
当为request的时候,表示在一次页面跳转,不会重新实例化对象
当为session,表示对象的生命周期为整个会话
当为application的时候,表示为所有用户共同拥有这个对象.即为单例模式
注册验证
<%-- Created by IntelliJ IDEA. User: ming Date: 19-3-15 Time: 上午12:53 To change this template use File | Settings | File Templates. --%> <%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%-- Created by IntelliJ IDEA. User: ming Date: 19-3-15 Time: 上午2:04 To change this template use File | Settings | File Templates. --%> <%@ page contentType="text/html;charset=UTF-8" language="java" %>
用户名年龄E-Mail
<%-- Created by IntelliJ IDEA. User: ming Date: 19-3-15 Time: 上午12:55 To change this template use File | Settings | File Templates. --%> <%@ page contentType="text/html;charset=UTF-8" language="java" %>
<% // 进行验证 if(reg.isVaildate()){ %><% }else{ %><% } %>
未分类