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<html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>Index 测试页面</title>
    </head>
    <body>
        <h1>欢迎。。。</h1>
        <img alt="" th:src="@{/images/icon_3.png}">
        <img alt="通常MVC项目静态资源放在 static/images 下" src="images/index/diannao.png">
    </body>
</html>