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@ -1,16 +1,40 @@
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<%@ page language="java" contentType="text/html; charset=UTF-8"
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<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
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pageEncoding="UTF-8"%>
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<!-- 指定JSP页面使用Java语言，并设置页面的内容类型为html以及字符编码为UTF-8 -->
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<%
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<%
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// 获取请求的上下文路径，用于构建应用的根路径
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String path = request.getContextPath();
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String path = request.getContextPath();
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// 构建基础路径，包含协议、服务器名称、端口号和上下文路径，用于后续资源的路径构建
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String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
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String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
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%>
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%>
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<!-- JSP脚本片段，用于动态生成basePath变量 -->
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<!DOCTYPE html>
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<!DOCTYPE html>
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<!-- 文档类型声明，指定了HTML的版本 -->
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<html>
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<html>
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<!-- HTML文档的根元素开始 -->
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<head>
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<head>
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<meta charset="UTF-8">
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<!-- head元素开始，用于包含文档的元数据 -->
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<title>WELCOME</title>
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<meta charset="UTF-8">
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<!-- 指定页面的字符编码为UTF-8 -->
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<title>WELCOME</title>
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<!-- 设置页面标题为"WELCOME" -->
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</head>
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</head>
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<!-- head元素结束 -->
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<body>
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<body>
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<img width="1695px;" height="835px;" alt="" src="<%=basePath%>images/welcome.jpg">
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<!-- body元素开始，包含页面的可见内容 -->
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<img width="1695px;" height="835px;" alt="" src="<%=basePath%>images/welcome.jpg">
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<!-- img元素用于显示图片，宽度和高度设置为1695像素和835像素，alt属性提供图片的替代文本，src属性通过之前定义的basePath变量构建图片的路径 -->
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</body>
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</body>
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<!-- body元素结束 -->
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</html>
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</html>
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<!-- HTML文档的根元素结束 -->
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