那些遇到过的问题

对Thymeleaf的XHTML Basic支持？

Ash*_*oss 20 java spring thymeleaf

我正在尝试使用Spring 4.1.9和Thymeleaf 2.1.5来呈现XHTML Basic 1.1页面,其中包含以下序言:

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML Basic 1.1//EN"
    "http://www.w3.org/TR/xhtml-basic/xhtml-basic11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
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仅仅在模板中使用它不起作用,因为Thymeleaf不识别doctype.

org.thymeleaf.exceptions.TemplateProcessingException:与PUBLICID请求不支持的实体" - // W3C // DTD XHTML 1.1的基本// EN"和SYSTEMID" http://www.w3.org/TR/xhtml-basic/xhtml-basic11 .dtd ".确保您的方言提供了相应的org.thymeleaf.doctype.resolution.IDocTypeResolutionEntry实现(索引:1)

建立

我浏览了Thymeleaf 扩展文档和源代码,并以此为出发点,定义了一个继承自SpringStandardDialect的新方言.我通过反复试验找出了丢失的模块,从w3.org下载并将它们添加到我项目的资源目录中:

XhtmlBasicDialect.java

import java.util.LinkedHashSet;
import java.util.Set;

import org.thymeleaf.doctype.DocTypeIdentifier;
import org.thymeleaf.doctype.resolution.ClassLoaderDocTypeResolutionEntry;
import org.thymeleaf.doctype.resolution.IDocTypeResolutionEntry;
import org.thymeleaf.spring4.dialect.SpringStandardDialect;

public class XhtmlBasicDialect extends SpringStandardDialect {
    private static final String DTD_STANDARD_PATH = "org/thymeleaf/dtd/standard/";

    private static final DocTypeIdentifier XHTML_BASIC_11_PUBLICID = DocTypeIdentifier.forValue("-//W3C//DTD XHTML Basic 1.1//EN");
    private static final DocTypeIdentifier XHTML_BASIC_11_SYSTEMID = DocTypeIdentifier.forValue("http://www.w3.org/TR/xhtml-basic/xhtml-basic11.dtd");
    private static final DocTypeIdentifier ENTITIES_XHTML_BASIC_11_DOCUMENT_MODEL_1_PUBLICID = DocTypeIdentifier.forValue("-//W3C//ENTITIES XHTML Basic 1.1 Document Model 1.0//EN");
    private static final DocTypeIdentifier ELEMENTS_XHTML_BASIC_TABLES_1_PUBLICID = DocTypeIdentifier.forValue("-//W3C//ELEMENTS XHTML Basic Tables 1.0//EN");
    private static final DocTypeIdentifier ELEMENTS_XHTML_INPUTMODE_1_PUBLICID = DocTypeIdentifier.forValue("-//W3C//ELEMENTS XHTML Inputmode 1.0//EN");
    private static final DocTypeIdentifier ELEMENTS_XHTML_TARGET_1_PUBLICID = DocTypeIdentifier.forValue("-//W3C//ELEMENTS XHTML Target 1.0//EN");
    private static final IDocTypeResolutionEntry XHTML_BASIC_STRICT_DOC_TYPE_RESOLUTION_ENTRY = new ClassLoaderDocTypeResolutionEntry(XHTML_BASIC_11_PUBLICID, XHTML_BASIC_11_SYSTEMID, DTD_STANDARD_PATH + "xhtml-basic11.dtd");
    private static final IDocTypeResolutionEntry ENTITIES_XHTML_BASIC_11_DOCUMENT_MODEL_1_DOC_TYPE_RESOLUTION_ENTRY = new ClassLoaderDocTypeResolutionEntry(ENTITIES_XHTML_BASIC_11_DOCUMENT_MODEL_1_PUBLICID, DocTypeIdentifier.ANY, DTD_STANDARD_PATH + "xhtml-basic11-model-1.mod");
    private static final IDocTypeResolutionEntry ELEMENTS_XHTML_BASIC_TABLES_1_DOC_TYPE_RESOLUTION_ENTRY = new ClassLoaderDocTypeResolutionEntry(ELEMENTS_XHTML_BASIC_TABLES_1_PUBLICID, DocTypeIdentifier.ANY, DTD_STANDARD_PATH + "xhtml-basic-table-1.mod");
    private static final IDocTypeResolutionEntry ELEMENTS_XHTML_INPUTMODE_1_DOC_TYPE_RESOLUTION_ENTRY = new ClassLoaderDocTypeResolutionEntry(ELEMENTS_XHTML_INPUTMODE_1_PUBLICID, DocTypeIdentifier.ANY, DTD_STANDARD_PATH + "xhtml-inputmode-1.mod");
    private static final IDocTypeResolutionEntry ELEMENTS_XHTML_TARGET_1_DOC_TYPE_RESOLUTION_ENTRY = new ClassLoaderDocTypeResolutionEntry(ELEMENTS_XHTML_TARGET_1_PUBLICID, DocTypeIdentifier.ANY, DTD_STANDARD_PATH + "xhtml-target-1.mod");

    @Override
    protected Set<IDocTypeResolutionEntry> getAdditionalDocTypeResolutionEntries() {
        final Set<IDocTypeResolutionEntry> docTypeResolutionEntries = new LinkedHashSet<IDocTypeResolutionEntry>();
        docTypeResolutionEntries.add(XHTML_BASIC_STRICT_DOC_TYPE_RESOLUTION_ENTRY);
        docTypeResolutionEntries.add(ENTITIES_XHTML_BASIC_11_DOCUMENT_MODEL_1_DOC_TYPE_RESOLUTION_ENTRY);
        docTypeResolutionEntries.add(ELEMENTS_XHTML_BASIC_TABLES_1_DOC_TYPE_RESOLUTION_ENTRY);
        docTypeResolutionEntries.add(ELEMENTS_XHTML_INPUTMODE_1_DOC_TYPE_RESOLUTION_ENTRY);
        docTypeResolutionEntries.add(ELEMENTS_XHTML_TARGET_1_DOC_TYPE_RESOLUTION_ENTRY);
        return docTypeResolutionEntries;
    }
}
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我按如下方式配置自定义方言:

MVC-config.xml中

...
<bean id="templateResolver" class="org.thymeleaf.templateresolver.ServletContextTemplateResolver">
    <property name="prefix" value="/WEB-INF/templates/" />
    <property name="suffix" value=".xhtml" />
    <property name="characterEncoding" value="UTF-8" />
    <property name="templateMode" value="XHTML" />
    <property name="xhtmlTemplateModePatterns" value="*.xhtml" /> 
</bean>

<bean id="templateEngine" class="org.thymeleaf.spring4.SpringTemplateEngine">
    <property name="templateResolver" ref="templateResolver" />
    <property name="additionalDialects">
        <set>
            <bean class="demo.XhtmlBasicDialect" />
        </set>
    </property>
</bean>

<bean id="xhtmlViewResolver" class="org.thymeleaf.spring4.view.ThymeleafViewResolver">
    <property name="templateEngine" ref="templateEngine" />
    <property name="characterEncoding" value="UTF-8" />
    <property name="contentType" value="application/xhtml+xml" />
</bean>
...
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我的模板如下:

DemoTemplate.xhtml

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML Basic 1.1//EN"
    "http://www.w3.org/TR/xhtml-basic/xhtml-basic11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" xmlns:th="http://www.thymeleaf.org">
    <head>
        <title>Demo</title>
        <link th:href="${'style' + '.css'}" rel="stylesheet" type="text/css"/>
    </head>
    <body>      
        <div>
            <p>Demo content</p>
        </div>
    </body>
</html>
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问题

乍一看,这看起来很好,除了生成的XHTML缺少XML标头,并且有几个额外的属性添加到每个元素.

渲染输出:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML Basic 1.1//EN" "http://www.w3.org/TR/xhtml-basic/xhtml-basic11.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="-//W3C//DTD XHTML Basic 1.1//EN">
    <head xmlns="http://www.w3.org/1999/xhtml" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
        <title xmlns="http://www.w3.org/1999/xhtml" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">Demo</title>
        <link rel="stylesheet" type="text/css" xmlns="http://www.w3.org/1999/xhtml" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:space="preserve" href="style.css" />
    </head>
    <body xmlns="http://www.w3.org/1999/xhtml" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:space="preserve">      
        <div xmlns="http://www.w3.org/1999/xhtml" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:space="preserve">
            <p xmlns="http://www.w3.org/1999/xhtml" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:space="preserve">Demo content</p>
        </div>
    </body>
</html>
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这与XHTML Basic预制不完全匹配; 首先,我想保留XML声明<?xml version="1.0" encoding="utf-8"?>

更重要的是,我不希望将xmlns="http://www.w3.org/1999/xhtml"和xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance",和 xml:space="preserve"属性添加到几乎每个元素中.还有一个version="-//W3C//DTD XHTML Basic 1.1//EN"属性添加到<html>元素中.

我做错了什么,我需要配置不同的东西,还是我错过了自定义方言的东西？

hee*_*nee 5

好吧,我没有"规范"证据表明XHTML Basic模板无法以Thymeleaf 2.x的方式处理,并且可能有一种方法可以给予足够的努力.但我确实看到了:

这与我自己努力工作的努力一起让我相信Thymeleaf 2.X中的XHTML处理从未完全被烘焙过.但是,它似乎在3.0中工作得很好,没有特别的努力.只需配置ViewResolver如下:

<bean id="viewResolver" class="org.thymeleaf.spring4.view.ThymeleafViewResolver">
    <property name="characterEncoding" value="UTF-8"/>
    <property name="templateEngine">
        <bean class="org.thymeleaf.spring4.SpringTemplateEngine">
            <property name="enableSpringELCompiler" value="true"/>
            <property name="templateResolver">
                <bean class="org.thymeleaf.spring4.templateresolver.SpringResourceTemplateResolver">
                    <property name="prefix" value="/WEB-INF/templates/"/>
                    <property name="suffix" value=".xhtml"/>
                    <property name="templateMode" value="XML"/>
                </bean>
            </property>
        </bean>
    </property>
</bean>
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我在github上发布了一个完整的工作示例.

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