📄 escapexml.jsp
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<%@ page contentType="text/html;charset=GBk" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %><%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %><html><head> <title>JSTL 函数 • EscapeXml</title></head><body><c:set var="s1" value="Welcome to Beijing!"/><c:set var="s2" value="<b>Welcome to Beijing!</b>"/><h4>fn:escapeXml</h4><table border="1"> <tr> <th>输入字符串</th> <th>结果</th> </tr> <tr> <td>${s1}</td> <td>${fn:escapeXml(s1)}</td> </tr> <tr> <td>${s2}</td> <td>${fn:escapeXml(s2)}</td> </tr> <tr> <td>未定义变量（null）</td> <td> ${fn:escapeXml(undefined)}</td> </tr> <tr> <td>空串</td> <td> ${fn:escapeXml("")}</td> </tr></table></body></html>⌨️ 快捷键说明
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