此应用程序没有显式映射 /error，因此您将其视为后备。春季启动中的Thymeleaf解析异常
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【中文标题】此应用程序没有显式映射 /error，因此您将其视为后备。春季启动中的Thymeleaf解析异常【英文标题】：This application has no explicit mapping for /error, so you are seeing this as a fallback. Thymeleaf parsing exception in spring boot 【发布时间】：2016-12-15 19:53:55 【问题描述】：我正在尝试使用 Spring Boot 制作登录应用程序。我尝试使用 Thymeleaf 使用 Spring Security 保护页面。我创建了一个示例登录页面，如下所示。
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:th="http://www.thymeleaf.org"
xmlns:sec="http://www.thymeleaf.org/thymeleaf-extras-springsecurity3">
<head>
<title>Spring Security Example</title>
</head>
<body>
<div th:if="$param.error">
Invalid username and password.
</div>
<div th:if="$param.logout">
You have been logged out.
</div>
<form th:action="@/login" method="post">
<div><label> User Name : <input type="text" name="username"/> </label></div>
<div><label> Password: <input type="password" name="password"/> </label></div>
<div><input type="submit" value="Sign In"/></div>
</form>
</body>
</html>
此代码运行良好，我能够转到登录页面。但是当我使用 HTML5 创建一个新的登录页面并尝试运行代码时，它显示了这样的错误
org.xml.sax.SAXParseException: The element type "link" must be terminated by the matching end-tag "</link>".
at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source) [na:1.8.0_101]
at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.fatalError(Unknown Source) [na:1.8.0_101]
at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(Unknown Source) [na:1.8.0_101]
at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(Unknown Source) [na:1.8.0_101]
at com.sun.org.apache.xerces.internal.impl.XMLScanner.reportFatalError(Unknown Source) [na:1.8.0_101]
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanEndElement(Unknown Source) [na:1.8.0_101]
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(Unknown Source) [na:1.8.0_101]
at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown Source) [na:1.8.0_101]
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source) [na:1.8.0_101]
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source) [na:1.8.0_101]
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source) [na:1.8.0_101]
at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source) [na:1.8.0_101]
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown Source) [na:1.8.0_101]
at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source) [na:1.8.0_101]
at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl.parse(Unknown Source) [na:1.8.0_101]
at org.thymeleaf.templateparser.xmlsax.AbstractNonValidatingSAXTemplateParser.doParse(AbstractNonValidatingSAXTemplateParser.java:209) [thymeleaf-2.1.5.RELEASE.jar!/:2.1.5.R
登录页面代码如下：-
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org" xmlns:sec="http://www.thymeleaf.org/thymeleaf-extras-springsecurity3">
<head>
<meta charset="utf-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=edge"/>
<meta name="viewport" content="width=device-width, initial-scale=1.0"/>
<meta name="description" content="Xenon Boostrap Admin Panel"/>
<meta name="author" content=""/>
<title>Login</title>
<link rel="stylesheet" href="http://fonts.googleapis.com/css?family=Arimo:400,700,400italic" media="screen"/>
<link rel="stylesheet" href="/static/css/fonts/linecons/css/linecons.css" th:href="@/static/css/fonts/linecons/css/linecons.css" media="screen"/>
<link rel="stylesheet" href="/static/css/fonts/fontawesome/css/font-awesome.min.css" th:href="@/static/css/fonts/fontawesome/css/font-awesome.min.css" media="screen"/>
<link rel="stylesheet" href="/static/css/bootstrap.css" th:href="@/static/css/bootstrap.css" media="screen"/>
<link rel="stylesheet" href="/static/css/xenon-core.css" th:href="@/static/css/xenon-core.css" media="screen"/>
<link rel="stylesheet" href="/static/css/xenon-forms.css" th:href="@/static/css/xenon-forms.css" media="screen"/>
<link rel="stylesheet" href="/static/css/xenon-components.css" th:href="@/static/css/xenon-components.css" media="screen"/>
<link rel="stylesheet" href="/static/css/xenon-skins.css" th:href="@/static/css/xenon-skins.css" media="screen"/>
<link rel="stylesheet" href="/static/css/custom.css" th:href="@/static/css/custom.css" media="screen"/>
<script th:src="@/static/js/jquery-1.11.1.min.js" src="/static/js/jquery-1.11.1.min.js"></script>
</head>
<body class="page-body login-page login-light">
<div class="login-container">
<div class="row">
<div class="col-sm-6">
<script type="text/javascript">
jQuery(document).ready(function($)
// Reveal Login form
setTimeout(function() $(".fade-in-effect").addClass('in'); , 1);
// Validation and Ajax action
$("form#login").validate(
rules:
username:
required: true
,
passwd:
required: true
,
messages:
username:
required: 'Please enter your username.'
,
passwd:
required: 'Please enter your password.'
,
// Form Processing via AJAX
submitHandler: function(form)
show_loading_bar(70); // Fill progress bar to 70% (just a given value)
var opts =
"closeButton": true,
"debug": false,
"positionClass": "toast-top-full-width",
"onclick": null,
"showDuration": "300",
"hideDuration": "1000",
"timeOut": "5000",
"extendedTimeOut": "1000",
"showEasing": "swing",
"hideEasing": "linear",
"showMethod": "fadeIn",
"hideMethod": "fadeOut"
;
$.ajax(
url: "data/login-check.php",
method: 'POST',
dataType: 'json',
data:
do_login: true,
username: $(form).find('#username').val(),
passwd: $(form).find('#passwd').val()
,
success: function(resp)
show_loading_bar(
delay: .5,
pct: 100,
finish: function()
// Redirect after successful login page (when progress bar reaches 100%)
if(resp.accessGranted)
window.location.href = 'dashboard-2.html';
);
// Remove any alert
$(".errors-container .alert").slideUp('fast');
// Show errors
if(resp.accessGranted == false)
$(".errors-container").html('<div class="alert alert-danger">\
<button type="button" class="close" data-dismiss="alert">\
<span aria-hidden="true">×</span>\
<span class="sr-only">Close</span>\
</button>\
' + resp.errors + '\
</div>');
$(".errors-container .alert").hide().slideDown();
$(form).find('#passwd').select();
);
);
// Set Form focus
$("form#login .form-group:has(.form-control):first .form-control").focus();
);
</script>
<!-- Errors container -->
<div class="errors-container">
</div>
<!-- Add class "fade-in-effect" for login form effect -->
<form th:action="@/extra-login-light" method="post" role="form" id="login" class="login-form fade-in-effect" autocomplete="on">
<div class="login-header">
<a href="dashboard-2.html" th:href="@/dashboard-2.html">
<img th:src="@/static/images/white.jpg" src="/static/images/white.jpg" class="logo"/>
<img th:src="@/static/images/xm_lockup.png" src="/static/images/xm_lockup.png" class="logonew"/>
</a>
<p>Dear user, log in to access the admin area!</p>
</div>
<div class="form-group">
<label class="control-label" for="username">Username</label>
<input type="text" class="form-control" name="username" id="username" autocomplete="off"/>
</div>
<div class="form-group">
<label class="control-label" for="passwd">Password</label>
<input type="password" class="form-control" name="password" id="passwd" autocomplete="off"/>
</div>
<div class="form-group">
<button type="submit" class="btn btn-primary btn-block text-left">
<i class="fa-lock"></i>
Log In
</button>
</div>
<div class="login-footer">
<a href="#">Forgot your password?</a>
<div class="info-links">
<a href="#">ToS</a> -
<a href="#">Privacy Policy</a>
</div>
</div>
</form>
<!-- Facebook Login
<div class="external-login">
<a href="#" class="facebook">
<i class="fa-facebook"></i>
Facebook Login
</a>
-->
<!--
<a href="<?php _hash(); ?>" class="twitter">
<i class="fa-twitter"></i>
Login with Twitter
</a>
<a href="<?php _hash(); ?>" class="gplus">
<i class="fa-google-plus"></i>
Login with Google Plus
</a>
-->
</div>
</div>
</div>
<!-- Bottom Scripts -->
<script src="/static/js/bootstrap.min.js"></script>
<script src="/static/js/TweenMax.min.js"></script>
<script src="/static/js/resizeable.js"></script>
<script src="/static/js/joinable.js"></script>
<script src="/static/js/xenon-api.js"></script>
<script src="/static/js/xenon-toggles.js"></script>
<script src="/static/js/jquery-validate/jquery.validate.min.js"></script>
<script src="/static/js/toastr/toastr.min.js"></script>
<!-- JavaScripts initializations and stuff -->
<script src="/static/js/xenon-custom.js"></script>
</body>
</html>
服务器上的错误是这样出现的 Error after trying to redirect to the new login page 我不明白问题是什么。为什么我会收到此错误？我使用的是注解，而不是 pom.xml 文件。
css 文件也没有加载。我的项目结构如下所示：- Project structure
请再次查看图片和代码，找出问题所在。
【问题讨论】：
您的 HTML5 页面源代码是什么样的？ 我按照其他人说的做了，效果很好。我现在一直在为所有标签做这件事。我现在遇到了另一个问题，这次是body标签。我有这样的标签 【参考方案1】：欢迎来到百里香！
Thymeleaf 需要严格的 XHTML 语法。
正如错误清楚地表明的那样：
org.xml.sax.SAXParseException:
The element type "link" must be terminated by the matching end-tag "</link>".
您的页面有一个您尚未关闭的link 元素。
【讨论】：
我按照你说的做了，效果很好。我现在一直在为所有标签做这件事。我现在遇到了另一个问题，这次是body标签。我有这样的标签以上是关于此应用程序没有显式映射 /error，因此您将其视为后备。春季启动中的Thymeleaf解析异常的主要内容，如果未能解决你的问题，请参考以下文章
Spring Boot Security 自定义登录页面未加载