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SpringBoot使用Thymeleaf自定义标签的实例代码

【字号: 日期:2023-04-22 16:06:13浏览:3作者:猪猪

此篇文章内容仅限于 描述springboot与 thy 自定义标签的说明,所以你在看之前,请先会使用springboot和thymeleaf!!

之前写过一篇是springMVC与thymeleaf 的自定义标签(属于自定义方言的属性一块,类似thy的th:if和th:text等)文章,如果你想了解,以下是地址:

点击>>Thymeleaf3.0自定义标签属性

这篇例子可以实现你的分页标签实现等功能,不会讲一堆的废话和底层的原理(自行百度),属于快速上手教程,请认真看以下内容!

PS: 请允许我将thymeleaf简称thy,springboot简称sb

依然直奔主题,sb本身是自带thy的,而且使用方式也很简单,直接配置application.properties 这个文件就可以了,当然你不配也是可以的。但是,需要配置自定义方言的话,就需要自己把配置重新写出来,看下面代码:

说明:RiskDialect是我自己的自定义标签,而且从这个配置可以简单看出,spring视图的配置通过注解的方式将thymeleaf配置进去了

@Configurationpublic class TemplateEngineConfig{ @Bean public ContentNegotiatingViewResolver getViewResolver(){ ServletContextTemplateResolver templateResolver=new ServletContextTemplateResolver(); templateResolver.setPrefix('/WEB-INF/views/'); templateResolver.setSuffix('.html'); templateResolver.setTemplateMode('HTML5'); templateResolver.setCacheable(false); templateResolver.setCharacterEncoding('UTF-8'); Set<IDialect> additionalDialects=new LinkedHashSet<IDialect>(); //自定义方言 additionalDialects.add(new RiskDialect()); SpringTemplateEngine templateEngine = new SpringTemplateEngine(); templateEngine.setAdditionalDialects(additionalDialects); templateEngine.setTemplateResolver(templateResolver); ThymeleafViewResolver thymeleafViewResolver = new ThymeleafViewResolver(); thymeleafViewResolver.setTemplateEngine(templateEngine); thymeleafViewResolver.setCharacterEncoding('UTF-8'); thymeleafViewResolver.setOrder(1); List<ViewResolver> viewResolvers= new ArrayList<>(); viewResolvers.add(thymeleafViewResolver); ContentNegotiatingViewResolver viewResolver = new ContentNegotiatingViewResolver(); viewResolver.setViewResolvers(viewResolvers); return viewResolver; }}

接下来看RiskDialect实现:

说明:SanstitvEncryptProcessor这个类是 thymeleaf处理器,用来处理定义方言逻辑的

package com.garc.thymeleaf.dialect; import org.springframework.stereotype.Component;import org.thymeleaf.dialect.AbstractDialect;import org.thymeleaf.dialect.AbstractXHTMLEnabledDialect;import org.thymeleaf.processor.IProcessor; import java.util.HashSet;import java.util.Set; /** * Created by Garc on 2018/1/17. */public class RiskDialect extends AbstractDialect { private static final String PREFIX='risk'; private static final String ELEMENT_NAME='sanstitv'; @Override public String getPrefix() { return PREFIX; } @Override public Set<IProcessor> getProcessors() { final Set<IProcessor> processors = new HashSet<>(); processors.add(new SanstitvEncryptProcessor(ELEMENT_NAME)); return processors; }}

继续看SanstitvEncryptProcessor这个类:

package com.garc.thymeleaf.dialect; import org.springframework.context.ApplicationContext;import org.thymeleaf.Arguments;import org.thymeleaf.dom.Element;import org.thymeleaf.dom.Node;import org.thymeleaf.dom.Text;import org.thymeleaf.processor.ProcessorResult;import org.thymeleaf.processor.element.AbstractElementProcessor;import org.thymeleaf.processor.element.AbstractMarkupSubstitutionElementProcessor;import org.thymeleaf.spring4.context.SpringWebContext; import java.util.ArrayList;import java.util.List; /** * Created by Garc on 2018/1/17. */public class SanstitvEncryptProcessor extends AbstractMarkupSubstitutionElementProcessor { protected SanstitvEncryptProcessor(String elementName) { super(elementName); } @Override protected List<Node> getMarkupSubstitutes(Arguments arguments, Element element) { final Element container = new Element('div'); final Text text = new Text('是的,这是测试'); container.addChild(text); final List<Node> nodes = new ArrayList<>(); nodes.add(container); return nodes; } @Override public int getPrecedence() { return 1000; } }

html使用方式:

risk:sanstitv 是我自定义用的标签

<!DOCTYPE html><html lang='en' xmlns='http://www.w3.org/1999/xhtml' xmlns:th='http://www.thymeleaf.org' xmlns:risk='http://www.w3.org/1999/xhtml'> <head> <meta content='text/html;charset=UTF-8'></meta> <title>Title</title> </head> <body> <span th:text='${test}'></span> <risk:sanstitv path='测试'></risk:sanstitv> </body></html>

以上这篇SpringBoot使用Thymeleaf自定义标签的实例代码就是小编分享给大家的全部内容了,希望能给大家一个参考,也希望大家多多支持好吧啦网。

标签: Spring
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