%@ page language="java" import="java.util.*" contentType="text/html; charset=utf-8" %>
%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
 
!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
html>
 head>
  base href="%=basePath%>" rel="external nofollow" rel="external nofollow" >
  
  title>My JSP 'login.jsp' starting page/title>
  
    meta http-equiv="pragma" content="no-cache">
    meta http-equiv="cache-control" content="no-cache">
    meta http-equiv="expires" content="0">  
    meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    meta http-equiv="description" content="This is my page">
    !--
    link rel="stylesheet" type="text/css" href="styles.css" rel="external nofollow" rel="external nofollow" >
    -->
 
 /head>
 
 body>
  h1>系统登录/h1>
  hr>
  form name="loginForm" action="dologin.jsp?mypass=999999" method="post">
   table>
    tr>
     td>用户名：/td>
     td>input type="text" name="username" value=""/>/td>
    /tr>
    tr>
     td>密码：/td>
     td>input type="password" name="password" value=""/>/td>
    /tr>
    tr>
     td colspan="2" align="center">input type="submit" value="登录"/>/td>
     
    /tr>
   /table>
  /form>
 /body>
/html>

%@ page language="java" import="java.util.*" contentType="text/html; charset=utf-8"%>
%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
 
!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
html>
 head>
  base href="%=basePath%>" rel="external nofollow" rel="external nofollow" >
  
  title>My JSP 'dologin.jsp' starting page/title>
  
    meta http-equiv="pragma" content="no-cache">
    meta http-equiv="cache-control" content="no-cache">
    meta http-equiv="expires" content="0">  
    meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    meta http-equiv="description" content="This is my page">
    !--
    link rel="stylesheet" type="text/css" href="styles.css" rel="external nofollow" rel="external nofollow" >
    -->
 
 /head>
 
 body>
  jsp:useBean id="myUsers" class="com.po.Users" scope="page"/>
  h1>setProperty动作元素/h1>
  hr>
  !--根据表单自动匹配所有的属性 -->
  %--
  jsp:setProperty name="myUsers" property="*"/> 
  --%>
  !--根据表单匹配所有部分的属性 -->
  %--
  jsp:setProperty name="myUsers" property="username"/> 
  --%>
  !--根表单无关，通过手工赋值给属性 -->
  %--
  jsp:setProperty name="myUsers" property="username" value="lisi"/>
  jsp:setProperty name="myUsers" property="password" value="888888"/>
  --%>
  !--通过URL传参数给属性赋值 -->
  jsp:setProperty name="myUsers" property="username"/>
  jsp:setProperty name="myUsers" property="password" param="mypass"/>
  !-- 使用传统的表达式方式来获取用户名和密码 -->
    用户名：%=myUsers.getUsername() %>br>
    密码：%=myUsers.getPassword() %>br>
  br>
  br>
 /body>
/html>