feat: expand struts demo lab
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Codex
@@ -1,103 +1,109 @@
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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>表单验证 - Struts2 Demo</title>
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Validation 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, #f093fb 0%, #f5576c 100%);
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body {
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margin: 0;
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min-height: 100vh;
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padding: 20px;
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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, #db2777 0%, #f472b6 55%, #ffe4f1 100%);
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}
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.container { max-width: 600px; margin: 0 auto; }
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.card {
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background: white;
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padding: 30px;
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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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.shell {
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max-width: 900px;
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margin: 0 auto;
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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(0,0,0,0.18);
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}
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h2 { color: #f5576c; margin-bottom: 20px; }
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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, textarea {
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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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.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: #db2777;
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font-weight: 800;
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}
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input:focus, textarea:focus { border-color: #f5576c; outline: none; }
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.error { color: #e53935; font-size: 0.85em; margin-top: 5px; }
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h1 { margin: 10px 0 12px; }
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p { margin: 0; color: #6e5565; line-height: 1.85; }
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.field { margin-top: 16px; }
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label { display: block; margin-bottom: 8px; font-weight: 700; color: #4a223b; }
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input, textarea {
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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 #ecd6e0;
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font: inherit;
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}
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textarea { resize: vertical; min-height: 120px; }
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button {
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width: 100%;
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margin-top: 18px;
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padding: 14px;
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background: #f5576c;
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border: 0;
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border-radius: 14px;
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background: linear-gradient(135deg, #db2777, #f472b6);
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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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}
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button:hover { background: #e91e63; }
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.info {
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background: #e3f2fd;
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padding: 15px;
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border-radius: 8px;
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margin-bottom: 20px;
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}
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code {
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background: #f5f5f5;
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padding: 2px 6px;
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border-radius: 3px;
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color: #e91e63;
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.error { color: #c0265d; font-size: 13px; margin-top: 6px; }
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.links { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 18px; }
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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: #fff0f7;
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color: #db2777;
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text-decoration: none;
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font-weight: 700;
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}
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</style>
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</head>
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<body>
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<div class="container">
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<div class="card">
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<h2>📝 表单验证示例</h2>
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<div class="info">
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<strong>验证方式：</strong>
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<ul style="margin:10px 0 0 20px;">
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<li>在 Action 中重写 <code>validate()</code> 方法</li>
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<li>使用 XML 验证文件 (ActionName-validation.xml)</li>
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<li>使用注解验证 (@Required, @IntRange 等)</li>
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</ul>
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<div class="shell">
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<div class="eyebrow">Validation demo</div>
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<h1>Test field validation with realistic profile inputs</h1>
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<p>This form shows how Struts2 can keep validation close to the action while still rendering a friendlier teaching page.</p>
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<s:form action="validate" method="post" namespace="/">
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<div class="field">
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<label for="username">Username (3-20 chars)</label>
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<s:textfield id="username" name="username" placeholder="release-manager"/>
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<div class="error"><s:fielderror fieldName="username"/></div>
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</div>
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<s:form action="validate" method="post">
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<div class="form-group">
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<label>用户名 (3-20字符)</label>
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<s:textfield name="username"/>
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<s:fielderror fieldName="username"/>
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</div>
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<div class="form-group">
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<label>邮箱</label>
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<s:textfield name="email"/>
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<s:fielderror fieldName="email"/>
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</div>
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<div class="form-group">
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<label>年龄 (18-60)</label>
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<s:textfield name="age"/>
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<s:fielderror fieldName="age"/>
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</div>
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<div class="form-group">
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<label>个人简介</label>
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<s:textarea name="bio" rows="4"/>
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</div>
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<s:actionerror/>
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<button type="submit">提交验证</button>
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</s:form>
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<div class="field">
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<label for="email">Email</label>
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<s:textfield id="email" name="email" placeholder="release@example.com"/>
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<div class="error"><s:fielderror fieldName="email"/></div>
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</div>
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<div class="field">
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<label for="age">Age (18-60)</label>
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<s:textfield id="age" name="age" placeholder="30"/>
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<div class="error"><s:fielderror fieldName="age"/></div>
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</div>
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<div class="field">
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<label for="bio">Bio</label>
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<s:textarea id="bio" name="bio" placeholder="Describe the role, strengths, or current platform focus."/>
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<div class="error"><s:fielderror fieldName="bio"/></div>
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</div>
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<button type="submit">Validate this profile</button>
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</s:form>
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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="../demo/ajax/index.jsp">Read the JSON guide</a>
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</div>
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</div>
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</body>
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</html>
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</html>
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