<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" import="com.model.User" %> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>Insert title here</title> </head> <body> <%!int a = 10; %> <%String name = "aaa"; request.setAttribute("myName", name); User user = new User(); user.setUsername("aa2"); request.setAttribute("users", user); %> name1:${myName }<br> name2:<%=name %><br> <!-- 作用域取值 --> username1:${users.username }<br> <!-- 表达式取值 --> username2:<%=user.getUsername() %><br> <!-- 标准动作取值 --> <jsp:useBean id="users" class="com.model.User" scope="request"/> username3:<jsp:getProperty name="users" property="username"/> </body> </html>