SpringBoot使用Thymeleaf自定義標簽的實例代碼
此篇文章內容僅限于 描述springboot與 thy 自定義標簽的說明,所以你在看之前,請先會使用springboot和thymeleaf!!
之前寫過一篇是springMVC與thymeleaf 的自定義標簽(屬于自定義方言的屬性一塊,類似thy的th:if和th:text等)文章,如果你想了解,以下是地址:
這篇例子可以實現你的分頁標簽實現等功能,不會講一堆的廢話和底層的原理(自行百度),屬于快速上手教程,請認真看以下內容!
PS: 請允許我將thymeleaf簡稱thy,springboot簡稱sb
依然直奔主題,sb本身是自帶thy的,而且使用方式也很簡單,直接配置application.properties 這個文件就可以了,當然你不配也是可以的。但是,需要配置自定義方言的話,就需要自己把配置重新寫出來,看下面代碼:
說明:RiskDialect是我自己的自定義標簽,而且從這個配置可以簡單看出,spring視圖的配置通過注解的方式將thymeleaf配置進去了
@Configuration
public 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>();
//自定義方言
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;
}
}
接下來看RiskDialect實現:
說明:SanstitvEncryptProcessor這個類是 thymeleaf處理器,用來處理定義方言邏輯的
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;
}
}
繼續(xù)看SanstitvEncryptProcessor這個類:
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,這是測試");
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 是我自定義用的標簽
<!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="測試"></risk:sanstitv>
</body>
</html>
以上這篇SpringBoot使用Thymeleaf自定義標簽的實例代碼就是小編分享給大家的全部內容了,希望能給大家一個參考,也希望大家多多支持腳本之家。
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