feat: expand struts demo lab
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Codex
@@ -1,94 +1,176 @@
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<%@ page contentType="text/html;charset=UTF-8" language="java" %>
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<%@ taglib prefix="s" uri="/struts-tags" %>
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<!DOCTYPE html>
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<html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<title>用户登录 - Struts2 Demo</title>
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Login Demo - Struts2 Demo Lab</title>
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<style>
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body {
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font-family: 'Segoe UI', sans-serif;
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background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
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body {
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margin: 0;
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min-height: 100vh;
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display: flex;
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align-items: center;
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justify-content: center;
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padding: 24px;
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font-family: "Aptos", "Segoe UI", "Microsoft YaHei", sans-serif;
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background: linear-gradient(135deg, #122c63 0%, #1464c7 52%, #4db5ff 100%);
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}
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.login-box {
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background: white;
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padding: 40px;
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border-radius: 15px;
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box-shadow: 0 15px 50px rgba(0,0,0,0.3);
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width: 400px;
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.shell {
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width: min(1040px, 100%);
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display: grid;
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grid-template-columns: 1fr 420px;
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gap: 18px;
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}
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h2 { color: #333; margin-bottom: 30px; text-align: center; }
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.form-group { margin-bottom: 20px; }
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label { display: block; margin-bottom: 8px; color: #555; font-weight: 500; }
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input {
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width: 100%;
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padding: 12px;
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border: 2px solid #e0e0e0;
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border-radius: 8px;
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font-size: 14px;
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transition: border-color 0.3s;
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.panel {
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background: rgba(255,255,255,0.95);
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border-radius: 28px;
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padding: 28px;
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box-shadow: 0 24px 60px rgba(0,0,0,0.22);
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}
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.eyebrow {
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font-size: 12px;
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letter-spacing: 0.12em;
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text-transform: uppercase;
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color: #1464c7;
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font-weight: 800;
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}
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h1, h2 { margin: 10px 0 12px; }
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p { margin: 0; color: #566a80; line-height: 1.85; }
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.note {
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margin-top: 18px;
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padding: 16px;
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border-radius: 18px;
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background: #edf5ff;
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border: 1px solid #d7e5f7;
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}
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.stats {
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display: grid;
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grid-template-columns: repeat(2, minmax(0, 1fr));
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gap: 12px;
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margin-top: 18px;
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}
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.stat {
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padding: 14px;
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border-radius: 18px;
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border: 1px solid #d7e5f7;
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background: #f8fbff;
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}
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.stat strong { display: block; margin-bottom: 6px; }
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.field {
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margin-bottom: 16px;
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}
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label {
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display: block;
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margin-bottom: 8px;
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font-weight: 700;
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color: #1f3650;
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}
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input {
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width: 100%;
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padding: 13px 14px;
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border-radius: 14px;
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border: 1px solid #d6e1ed;
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font: inherit;
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}
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input:focus { border-color: #667eea; outline: none; }
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.error { color: #e53935; font-size: 0.85em; margin-top: 5px; }
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.error-field { border-color: #e53935 !important; }
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button {
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width: 100%;
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padding: 14px;
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background: #667eea;
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border: 0;
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border-radius: 14px;
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background: linear-gradient(135deg, #1464c7, #3d8ef6);
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color: white;
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border: none;
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border-radius: 8px;
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font-size: 16px;
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font-weight: 800;
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cursor: pointer;
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transition: background 0.3s;
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}
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button:hover { background: #764ba2; }
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.tips {
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background: #e8f5e9;
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padding: 15px;
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border-radius: 8px;
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margin-bottom: 20px;
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font-size: 0.9em;
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color: #2e7d32;
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.error {
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color: #c53d3d;
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font-size: 13px;
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margin-top: 6px;
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}
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.action-error {
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margin: 0 0 16px;
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padding: 14px;
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border-radius: 14px;
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background: #fff1f1;
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color: #b63a3a;
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border: 1px solid #f1c4c4;
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}
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.links {
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display: flex;
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gap: 10px;
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flex-wrap: wrap;
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margin-top: 18px;
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}
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.link-btn {
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display: inline-flex;
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padding: 10px 14px;
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border-radius: 999px;
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background: #edf5ff;
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color: #1464c7;
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text-decoration: none;
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font-weight: 700;
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}
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@media (max-width: 860px) {
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.shell { grid-template-columns: 1fr; }
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}
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a { color: #667eea; text-decoration: none; }
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</style>
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</head>
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<body>
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<div class="login-box">
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<h2>🔐 用户登录</h2>
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<div class="tips">
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<strong>测试账号：</strong> admin / 123456
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</div>
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<!-- Struts2 表单标签 -->
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<s:form action="login" method="post" namespace="/">
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<div class="form-group">
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<label>用户名</label>
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<s:textfield name="username" placeholder="请输入用户名" cssClass="%{hasErrors('username') ? 'error-field' : ''}"/>
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<s:fielderror fieldName="username"/>
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<div class="shell">
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<section class="panel">
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<div class="eyebrow">Demo login</div>
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<h1>Login flow with validation and guided next steps</h1>
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<p>This page turns the original login example into a better teaching demo. It keeps validation close to the form, shows a reusable credentials note, and links to follow-up demos after success.</p>
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<div class="note">
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<strong>Demo credentials</strong>
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<p style="margin-top: 8px;">Username: <code>admin</code><br/>Password: <code>123456</code></p>
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</div>
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<div class="form-group">
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<label>密码</label>
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<s:password name="password" placeholder="请输入密码" showPassword="true"/>
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<s:fielderror fieldName="password"/>
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<div class="stats">
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<div class="stat">
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<strong>What this demonstrates</strong>
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<span>Action execution, field validation, action errors, and result routing.</span>
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</div>
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<div class="stat">
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<strong>Suggested next route</strong>
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<span>After login, continue with the user form or validation demo.</span>
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</div>
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</div>
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<!-- 显示 Action 错误消息 -->
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<s:actionerror/>
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<button type="submit">登录</button>
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</s:form>
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<p style="text-align:center;margin-top:20px;">
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<a href="index.jsp">← 返回首页</a>
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</p>
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<div class="links">
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<a class="link-btn" href="../index.jsp">Back to portal</a>
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<a class="link-btn" href="../hello?name=Team">Run hello action</a>
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</div>
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</section>
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<section class="panel">
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<div class="eyebrow">Sign in</div>
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<h2>Enter the demo account</h2>
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<s:if test="hasActionErrors()">
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<div class="action-error"><s:actionerror/></div>
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</s:if>
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<s:form action="login" method="post" namespace="/">
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<div class="field">
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<label for="username">Username</label>
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<s:textfield id="username" name="username" placeholder="admin"/>
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<div class="error"><s:fielderror fieldName="username"/></div>
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</div>
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<div class="field">
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<label for="password">Password</label>
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<s:password id="password" name="password" placeholder="123456" showPassword="true"/>
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<div class="error"><s:fielderror fieldName="password"/></div>
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</div>
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<button type="submit">Continue to the dashboard</button>
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</s:form>
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</section>
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</div>
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</body>
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</html>
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</html>
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