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Update: struts config, new actions and views

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likingcode
2026-03-18 15:18:32 +08:00
parent e0afbdc002
commit 077f054e2c
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target/struts2-scaffold-1.0.0/interceptor-demo.jsp Normal file
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<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib prefix="s" uri="/struts-tags" %>
<!DOCTYPE html>
<html>
<head>
<title>拦截器演示 - Struts2</title>
<style>
body { font-family: Arial, sans-serif; max-width: 900px; margin: 50px auto; padding: 20px; }
h1 { color: #e74c3c; }
h2 { color: #3498db; border-bottom: 2px solid #3498db; padding-bottom: 10px; }
.card { background: #f9f9f9; padding: 20px; margin: 15px 0; border-radius: 8px; }
.card h3 { margin-top: 0; color: #2c3e50; }
code { background: #eee; padding: 2px 6px; border-radius: 3px; }
pre { background: #2c3e50; color: #ecf0f1; padding: 15px; border-radius: 5px; overflow-x: auto; }
table { width: 100%; border-collapse: collapse; margin: 10px 0; }
th, td { border: 1px solid #ddd; padding: 8px; text-align: left; }
th { background: #3498db; color: white; }
.time { color: #27ae60; font-weight: bold; }
.api-link { display: inline-block; background: #9b59b6; color: white; padding: 10px 20px;
text-decoration: none; border-radius: 5px; margin: 5px; }
.lab { background:#fff7e6; border-left:4px solid #fa8c16; padding:15px; border-radius:8px; margin:20px 0; }
</style>
</head>
<body>
<h1>🛡️ Struts2 拦截器演示</h1>
<div class="lab">
<strong>实验观察点：</strong>
<ul>
<li>连续刷新页面，观察 Action 调用次数如何累积</li>
<li>切换到“API 限流栈”，理解为什么拦截器顺序会影响结果</li>
<li>注意执行时间显示，这就是拦截器注入到 request 的数据</li>
</ul>
</div>
<div class="card">
<h3>📊 执行统计</h3>
<p>本次请求执行时间: <span class="time"><s:property value="executionTime / 1000000.0"/> ms</span></p>
<h4>Action 调用统计:</h4>
<table>
<tr><th>Action</th><th>调用次数</th></tr>
<s:iterator value="interceptorStats" var="entry">
<tr>
<td><s:property value="#entry.key"/></td>
<td><s:property value="#entry.value"/></td>
</tr>
</s:iterator>
</table>
</div>
<div class="card">
<h3>🔗 拦截器链演示</h3>
<p>当前使用: <code>customStack</code> (日志 + 计时 + 监控 + 默认栈)</p>
<a class="api-link" href="interceptor_api">使用 API 限流栈</a>
<p>API 栈包含: 日志 + 限流 + 验证 + 计时 + 默认栈</p>
</div>
<div class="card">
<h3>📚 拦截器执行顺序</h3>
<pre>
请求 → LoggingInterceptor → TimingInterceptor → MonitorInterceptor → Action
响应 ← LoggingInterceptor ← TimingInterceptor ← MonitorInterceptor ← Result
</pre>
<p><strong>注意:</strong> 拦截器像洋葱一样，先进入的后退出</p>
</div>
<div class="card">
<h3>💡 拦截器核心概念</h3>
<ul>
<li><strong>Interceptor 接口:</strong> init() → intercept() → destroy()</li>
<li><strong>intercept() 方法:</strong> 调用 invocation.invoke() 继续链</li>
<li><strong>拦截器栈:</strong> 多个拦截器按顺序组成链</li>
<li><strong>责任链模式:</strong> 每个拦截器决定是否继续</li>
</ul>
</div>
<p><a href="learn">← 返回学习中心</a></p>
</body>
</html>