cn.hutool.extra.template.engine.thymeleaf.ThymeleafEngine Maven / Gradle / Ivy
package cn.hutool.extra.template.engine.thymeleaf;
import org.thymeleaf.templatemode.TemplateMode;
import org.thymeleaf.templateresolver.ClassLoaderTemplateResolver;
import org.thymeleaf.templateresolver.DefaultTemplateResolver;
import org.thymeleaf.templateresolver.FileTemplateResolver;
import org.thymeleaf.templateresolver.ITemplateResolver;
import org.thymeleaf.templateresolver.StringTemplateResolver;
import cn.hutool.core.io.FileUtil;
import cn.hutool.core.util.StrUtil;
import cn.hutool.extra.template.Template;
import cn.hutool.extra.template.TemplateConfig;
import cn.hutool.extra.template.TemplateEngine;
/**
* Thymeleaf模板引擎实现
*
* @author looly
* @since 4.1.11
*/
public class ThymeleafEngine implements TemplateEngine {
org.thymeleaf.TemplateEngine engine;
TemplateConfig config;
// --------------------------------------------------------------------------------- Constructor start
/**
* 默认构造
*/
public ThymeleafEngine() {
this(new TemplateConfig());
}
/**
* 构造
*
* @param config 模板配置
*/
public ThymeleafEngine(TemplateConfig config) {
this(createEngine(config));
this.config = config;
}
/**
* 构造
*
* @param engine {@link org.thymeleaf.TemplateEngine}
*/
public ThymeleafEngine(org.thymeleaf.TemplateEngine engine) {
this.engine = engine;
}
// --------------------------------------------------------------------------------- Constructor end
@Override
public Template getTemplate(String resource) {
return ThymeleafTemplate.wrap(this.engine, resource, (null == this.config) ? null : this.config.getCharset());
}
/**
* 创建引擎
*
* @param config 模板配置
* @return {@link TemplateEngine}
*/
private static org.thymeleaf.TemplateEngine createEngine(TemplateConfig config) {
if (null == config) {
config = new TemplateConfig();
}
ITemplateResolver resolver = null;
switch (config.getResourceMode()) {
case CLASSPATH:
final ClassLoaderTemplateResolver classLoaderResolver = new ClassLoaderTemplateResolver();
classLoaderResolver.setCharacterEncoding(config.getCharsetStr());
classLoaderResolver.setTemplateMode(TemplateMode.HTML);
classLoaderResolver.setPrefix(StrUtil.addSuffixIfNot(config.getPath(), "/"));
resolver = classLoaderResolver;
break;
case FILE:
final FileTemplateResolver fileResolver = new FileTemplateResolver();
fileResolver.setCharacterEncoding(config.getCharsetStr());
fileResolver.setTemplateMode(TemplateMode.HTML);
fileResolver.setPrefix(StrUtil.addSuffixIfNot(config.getPath(), "/"));
resolver = fileResolver;
break;
case WEB_ROOT:
final FileTemplateResolver webRootResolver = new FileTemplateResolver();
webRootResolver.setCharacterEncoding(config.getCharsetStr());
webRootResolver.setTemplateMode(TemplateMode.HTML);
webRootResolver.setPrefix(StrUtil.addSuffixIfNot(FileUtil.getAbsolutePath(FileUtil.file(FileUtil.getWebRoot(), config.getPath())), "/"));
resolver = webRootResolver;
break;
case STRING:
resolver = new StringTemplateResolver();
break;
case COMPOSITE:
resolver = new DefaultTemplateResolver();
break;
default:
resolver = new DefaultTemplateResolver();
break;
}
final org.thymeleaf.TemplateEngine engine = new org.thymeleaf.TemplateEngine();
engine.setTemplateResolver(resolver);
return engine;
}
}