我提前道歉，我没有做很多前端开发。但简而言之，xmlns属性正在删除标记并在渲染文档中移动它们。这可能是一个JSF问题，因为它甚至发生在视图源中。这个svg标签工作，不会改变结构：
<svg id="Layer_1" x="0px" y="0px" width="150px" height="150px" viewBox="0 0 150 150" enable-background="new 0 0 150 150">
但是，只要声明了xml命名空间，就会更改页面上的所有代码。它移动我的span标签，标签，标题标签，删除关闭div标签，并以一种只会破坏一切的方式对它们进行排序。这里是原始xhtml的一个例子，并且渲染了xhtml以及html的xmlns
pre-jsf xhtml：
<a href="?service=all" class="#{servicesAllClass}">
<span>
<svg **xmlns="http://www.w3.org/2000/svg"** id="Layer_1" x="0px" y="0px"
width="150px" height="150px" viewBox="0 0 150 150" enable-background="new 0 0 150 150">
<path fill="#3A3838" d="M126.83,8.875H22.169c-7.116,0-12.884,5.768-12.884,12.884v102.482c0,7.115,5.768,12.884,16.884,12.884
H130.83c3.116,0,8.884-5.769,8.884-12.884V21.759C139.714,14.643,133.946,8.875,126.83,8.875z M38.643,118.505
c-5.93,0-10.737-4.807-10.737-10.737c0-5.93,4.807-10.736,10.737-10.736s10.736,4.807,10.736,10.736
C49.379,113.698,44.573,118.505,38.643,118.505z M38.643,83.736c-5.93,0-10.737-4.806-10.737-10.736
c0-5.93,4.807-10.737,10.737-10.737S49.379,67.07,49.379,73C49.379,78.931,44.573,83.736,38.643,83.736z M38.643,48.969
c-5.93,0-10.737-4.807-10.737-10.737s4.807-10.736,10.737-10.736s10.736,4.806,10.736,10.736S44.573,48.969,38.643,48.969z
M112.834,45.167H68.166c-4.418,0-8-3.582-8-8s3.582-8,8-8h44.668c4.418,0,8,3.582,8,8S117.252,45.167,112.834,45.167z
M112.834,80.167H68.166c-4.418,0-8-3.581-8-8c0-4.418,3.582-8,8-8h44.668c4.418,0,8,3.582,8,8
C120.834,76.586,117.252,80.167,112.834,80.167z M112.834,115.167H68.166c-4.418,0-8-3.581-8-8s3.582-8,8-8h44.668
c4.418,0,8,3.581,8,8S117.252,115.167,112.834,115.167z"></path>
</svg>
</span>
<h5>All</h5>
</a>
这是JSF之后的代码，当xmlns在标记中时，注意到没有关闭锚标记，没有被遗漏，它只是没有。但是当删除xmlns时，它显示的内容与原始（上面）脚本完全相同，所以我选择不包含它。
在任何浏览器中拉出DOM（注意缺少的锚标签，它被移动了30行）
<a href="?service=all-services" class="disabled">
<span><svg xmlns="http://www.w3.org/2000/svg" id="Layer_1" x="0px" y="0px" width="150px" height="150px" viewBox="0 0 150 150" enable-background="new 0 0 150 150">
<path fill="#3A3838" d="M126.83,8.875H22.169c-7.116,0-12.884,5.768-12.884,12.884v102.482c0,7.115,5.768,12.884,16.884,12.884 H130.83c3.116,0,8.884-5.769,8.884-12.884V21.759C139.714,14.643,133.946,8.875,126.83,8.875z M38.643,118.505 c-5.93,0-10.737-4.807-10.737-10.737c0-5.93,4.807-10.736,10.737-10.736s10.736,4.807,10.736,10.736 C49.379,113.698,44.573,118.505,38.643,118.505z M38.643,83.736c-5.93,0-10.737-4.806-10.737-10.736 c0-5.93,4.807-10.737,10.737-10.737S49.379,67.07,49.379,73C49.379,78.931,44.573,83.736,38.643,83.736z M38.643,48.969 c-5.93,0-10.737-4.807-10.737-10.737s4.807-10.736,10.737-10.736s10.736,4.806,10.736,10.736S44.573,48.969,38.643,48.969z M112.834,45.167H68.166c-4.418,0-8-3.582-8-8s3.582-8,8-8h44.668c4.418,0,8,3.582,8,8S117.252,45.167,112.834,45.167z M112.834,80.167H68.166c-4.418,0-8-3.581-8-8c0-4.418,3.582-8,8-8h44.668c4.418,0,8,3.582,8,8 C120.834,76.586,117.252,80.167,112.834,80.167z M112.834,115.167H68.166c-4.418,0-8-3.581-8-8s3.582-8,8-8h44.668 c4.418,0,8,3.581,8,8S117.252,115.167,112.834,115.167z"></path>
</svg>
<h5>All</h5>
</span>
完整的文件被要求：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns:jsp="http://java.sun.com/JSP/Page" xmlns:fn="http://java.sun.com/jsp/jstl/functions" xmlns:c="http://xmlns.jcp.org/jsp/jstl/core" xmlns:f="http://java.sun.com/jsf/core" xmlns:h="http://java.sun.com/jsf/html" xmlns:ui="http://java.sun.com/jsf/facelets">
<head></head>
<body>
<ui:composition>
<div style="display:grid;">
<a href="?service=all" class=".test">
<span>
<svg xmlns="http://www.w3.org/2000/svg" id="Layer_1" x="0px" y="0px"
width="150px" height="150px" viewBox="0 0 150 150" enable-background="new 0 0 150 150">
<path fill="#3A3838" d="M126.83,8.875H22.169c-7.116,0-12.884,5.768-12.884,12.884v102.482c0,7.115,5.768,12.884,16.884,12.884
H130.83c3.116,0,8.884-5.769,8.884-12.884V21.759C139.714,14.643,133.946,8.875,126.83,8.875z M38.643,118.505
c-5.93,0-10.737-4.807-10.737-10.737c0-5.93,4.807-10.736,10.737-10.736s10.736,4.807,10.736,10.736
C49.379,113.698,44.573,118.505,38.643,118.505z M38.643,83.736c-5.93,0-10.737-4.806-10.737-10.736
c0-5.93,4.807-10.737,10.737-10.737S49.379,67.07,49.379,73C49.379,78.931,44.573,83.736,38.643,83.736z M38.643,48.969
c-5.93,0-10.737-4.807-10.737-10.737s4.807-10.736,10.737-10.736s10.736,4.806,10.736,10.736S44.573,48.969,38.643,48.969z
M112.834,45.167H68.166c-4.418,0-8-3.582-8-8s3.582-8,8-8h44.668c4.418,0,8,3.582,8,8S117.252,45.167,112.834,45.167z
M112.834,80.167H68.166c-4.418,0-8-3.581-8-8c0-4.418,3.582-8,8-8h44.668c4.418,0,8,3.582,8,8
C120.834,76.586,117.252,80.167,112.834,80.167z M112.834,115.167H68.166c-4.418,0-8-3.581-8-8s3.582-8,8-8h44.668
c4.418,0,8,3.581,8,8S117.252,115.167,112.834,115.167z"></path>
</svg>
</span>
<h5>All</h5>
</a>
</div>
</ui:composition>
</body>
</html>
细节：
我的一个明确的问题是：“当一个XML命名空间属性被添加到一个元素时，什么可能导致dom被改变？”
应用服务器+ IDE：Glassfish 5.0 - Java EE 8 - JSF 2.3.2 - SCSS css预处理器只处理.scss文件 - intellij IDEA Ultimate（最新）
所有文件都是.xhtml，目前没有托管bean，代码或javascript以任何方式影响这一点。
当html放在没有JSF的tomcat中时，这不会发生。这就是我指向JSF但我可能不正确的原因。
我调试了一下，发现这必须在JSF SAXCompiler例程中发生。虽然com.sun.faces.facelets.compiler.SAXCompiler.CompilationHandler按照XHTML源代码获得了按正确顺序调用的'startElement和endElement方法，但结果为
FaceletHandler h = this.compiler.compile(url, alias);
在com.sun.faces.facelets.impl.DefaultFaceletFactory Mojarra 2.3.8的第475行，是一个FaceletHandler，代表观察到的错误的元素树结构。
这被报道为bug #4555。
还有a very similar question before然后是reported as a bug to Mojarra。随着bug的解决，我认为这是一个新的。因此，我建议您使用缩小的可重复示例来报告该错误。对于您的应用，您应该考虑使用<ui:include src="/resources/svg/one.svg" />来修改SVG，因为BalusC建议回应the other question。