我不能让 GWT 生成有效的 XHTML。在我们的项目中，我们使用表格布局，因此页面上有很多表格，它们里面有<colgroup>标签和<col>标签。无论在主 HTML 模板中放置哪种 doctype ，<col>标签都不会关闭。XHTML Transitional 和 XHTML String 都试过了。结果是一样的。
<table class="header-grid" cellpadding="0" cellspacing="0">
<colgroup>
<col class="header-left">
<col class="header-center">
<col class="header-right">
</colgroup>
<tbody>
...
</tbody>
</table>
<input>元素也没有关闭。我猜可能还有其他未正确关闭的元素，但它们没有在应用程序中使用，或者我没有找到它们。
供参考。GWT 操作 DOM 并且不会将任何插入到内部 HTML 作为文本。它使用 JavaScript 的appendChild(...)方法和doc.createElement(...).
该问题在 Web 和 Dev 模式下的 Chrome、Firefox 和 IE 中重现。它发生在不使用 UIBinder 的页面上。
GWT 版本：2.4.0。
主要HTML：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<meta name="svg.render.forceflash" content="false"/>
<meta name="gwt:property" content="locale=en"/>
<meta http-equiv="X-UA-Compatible" content="IE=8, IE9"/>
<title>NPQ Facility Management</title>
<script src="https://maps-api-ssl.google.com/maps/api/js?v=3&sensor=false" type="text/javascript"></script>
<script type="text/javascript" language="javascript" src="FMInsight.nocache.js"></script>
<script type="text/javascript" language="javascript" src="gr/abiss/js/sarissa/sarissa.js"></script>
<script type="text/javascript" src="js/svg-web/svg.js" data-path="js/svg-web" data-debug="false"></script>
<script type="text/javascript" src="js/svgviewer.js"></script>
<link media="all" type="text/css"
href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.6/themes/base/jquery-ui.css" rel="stylesheet"/>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js"
type="text/javascript" charset="utf-8"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.8.6/jquery-ui.min.js"
type="text/javascript" charset="utf-8"></script>
</head>
<body>
<iframe id="__printingFrame" style="width:0; height:0;border: 0"></iframe>
<iframe id="__gwt_historyFrame" style="width:0;height:0;border:0"></iframe>
</body>
</html>
主模块的 GWT XML 文件：
<?xml version="1.0" encoding="UTF-8"?>
<module rename-to="FMInsight">
<!-- Inheriting the core Web Toolkit stuff. -->
<inherits name="com.google.gwt.user.User"/>
<inherits name="com.google.gwt.inject.Inject"/>
<inherits name="com.npq.fm.core.common.Commons"/>
<inherits name="com.npq.fm.svg.viewer.SvgViewer"/>
<!-- Inheriting the default GWT style sheet. You can change -->
<!-- the theme of your GWT application by unommenting -->
<!-- any one of the following lines. -->
<inherits name="com.google.gwt.user.theme.standard.Standard"/>
<inherits name="com.google.gwt.user.theme.chrome.Chrome"/>
<!-- <inherits name="com.google.gwt.user.theme.dark.Dark"/> -->
<!-- Other module inherits. -->
<inherits name="com.google.gwt.xml.XML"/>
<inherits name="com.google.gwt.i18n.I18N"/>
<inherits name="com.google.gwt.http.HTTP"/>
<!-- Other module inherits. -->
<inherits name="com.google.gwt.user.ClippedImage"/>
<inherits name="com.google.gwt.maps.Maps" />
<!-- Compiled languages -->
<!-- In main file we set only EN language and only in compilation files,
that inherits from this file define what languages are allowed by
re-defining locale like in line below:
<extend-property name="locale" values="en,de,fr,nl,uk"/>
-->
<extend-property name="locale" values="en"/>
<set-property name="locale" value="en"/>
<set-property-fallback name="locale" value="en"/>
<!-- This property provider changes from GWT parameter name -->
<!-- for changing application locale from "locale" to -->
<!-- property "sap-language". -->
<property-provider name="locale"><![CDATA[
var defaultLocale = "en";
try {
var locale;
// Looking for the locale as a url argument in SAP way
if (locale == null) {
var args = location.search;
var startLang = args.indexOf("sap-language");
if (startLang < 0) {
startLang = args.indexOf("locale");
}
if (startLang >= 0) {
var language = args.substring(startLang);
var begin = language.indexOf("=") + 1;
var end = language.indexOf("&");
if (end == -1) {
end = language.length;
}
locale = language.substring(begin, end);
var lowerCase = locale.toLowerCase()
locale = lowerCase;
}
}
if (locale == null) {
// Looking for the locale on the web page
locale = __gwt_getMetaProperty("locale");
}
if (locale == null) {
return defaultLocale;
}
while (!__gwt_isKnownPropertyValue("locale", locale)) {
var lastIndex = locale.lastIndexOf("_");
if (lastIndex == -1) {
locale = defaultLocale;
break;
} else {
locale = locale.substring(0,lastIndex);
}
}
return locale;
} catch(e) {
alert("Unexpected exception in locale detection, using default=" + defaultLocale + ", " + e);
return defaultLocale;
}
]]></property-provider>
<!--
Inspired by Apache log4j PatternLayout:
http://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/PatternLayout.html
-->
<set-configuration-property name="log_pattern" value="%d [%-2p] %F %M: %m%n"/>
<!--<set-configuration-property name="log_pattern" value="%d [%-2p] %m%n"/>-->
<set-property name="log_FirebugLogger" value="ENABLED"/>
<set-property name="log_GWTLogger" value="ENABLED"/>
<set-property name="log_DivLogger" value="ENABLED"/>
<!-- Loggers are disabled by default -->
<set-property name="log_ConsoleLogger" value="DISABLED"/>
<set-property name="log_SystemLogger" value="DISABLED"/>
<set-property name="log_WindowLogger" value="DISABLED"/>
<!-- User Agent -->
<!-- In main file we set only user-agent to "ie8" and
only in compilation files, that inherits from this file we re-define
what user agents should be supported by re-defining locale like
in line below:
<set-property name="user.agent" value="gecko1_8,safari,ie6,ie8,ie9"/>
-->
<set-property name="user.agent" value="gecko1_8,safari"/>
<property-provider name="user.agent"><![CDATA[
var defaultUserAgent = "ie7";
var ua = navigator.userAgent.toLowerCase();
var makeVersion = function(result) {
return (parseInt(result[1]) * 1000) + parseInt(result[2]);
};
if (ua.indexOf("opera") != -1) {
return "opera";
} else if (ua.indexOf("webkit") != -1) {
return "safari";
} else if (ua.indexOf("msie") != -1) {
if (document.documentMode >= 8 && document.documentMode < 9) {
return "ie8";
} else if (document.documentMode >= 9) {
return "ie9";
} else {
return defaultUserAgent;
}
} else if (ua.indexOf("gecko") != -1) {
var result = /rv:([0-9]+)\.([0-9]+)/.exec(ua);
if (result && result.length == 3) {
if (makeVersion(result) >= 1008) {
return "gecko1_8";
}
}
return "gecko1_8";
}
return defaultUserAgent;
]]></property-provider>
<replace-with class="com.npq.fm.core.main.client.commons.browserspecific.impl.BrowserSpecificCommonsGecko">
<when-type-is class="com.npq.fm.core.main.client.commons.browserspecific.BrowserSpecificCommons" />
<any>
<when-property-is name="user.agent" value="gecko"/>
<when-property-is name="user.agent" value="gecko1_8" />
</any>
</replace-with>
<replace-with class="com.npq.fm.core.main.client.commons.browserspecific.impl.BrowserSpecificCommonsIE">
<when-type-is class="com.npq.fm.core.main.client.commons.browserspecific.BrowserSpecificCommons" />
<any>
<when-property-is name="user.agent" value="ie6"/>
<when-property-is name="user.agent" value="ie8" />
<when-property-is name="user.agent" value="ie9" />
</any>
</replace-with>
<replace-with class="com.npq.fm.core.main.client.commons.browserspecific.impl.BrowserSpecificSafari">
<when-type-is class="com.npq.fm.core.main.client.commons.browserspecific.BrowserSpecificCommons" />
<any>
<when-property-is name="user.agent" value="safari"/>
</any>
</replace-with>
<stylesheet src="FMInsight-main.css"/>
<stylesheet src="res_localized/default.css"/>
<!-- Specifying the app entry point class. -->
<entry-point class="com.npq.fm.core.main.client.Main"/>
<inherits name="org.cobogw.gwt.user.Button"/>
</module>