import org.thymeleaf.spring4.context.SpringWebContext; //导入依赖的package包/类
@Override
protected boolean isVisible(final Arguments arguments, final Element element, final String attributeName) {

    String attributeValue = element.getAttributeValue(attributeName);

    if (StringUtils.indexOf(attributeValue, "isAdminPage") != -1) {
        Object context = arguments.getContext();
        if (context instanceof SpringWebContext) {
            SpringWebContext webContext = (SpringWebContext) context;
            HttpServletRequest httpServletRequest = webContext.getHttpServletRequest();
            boolean val = StringUtils.indexOf(httpServletRequest.getRequestURI(), "/_admin/") != -1;
            attributeValue = StringUtils.replace(attributeValue, "isAdminPage", Boolean.toString(val));
        }
    }

    final Configuration configuration = arguments.getConfiguration();
    final IStandardExpressionParser expressionParser = StandardExpressions.getExpressionParser(configuration);

    final IStandardExpression expression = expressionParser.parseExpression(configuration, arguments, attributeValue);
    final Object value = expression.execute(configuration, arguments);

    final boolean visible = EvaluationUtil.evaluateAsBoolean(value);

    return visible;
}
 

import org.thymeleaf.spring4.context.SpringWebContext; //导入依赖的package包/类
@Override
protected Map<String, String> getModifiedAttributeValues(Arguments arguments, Element element, String attributeName) {
    String href = "#";
    
    Expression expression = (Expression) StandardExpressions.getExpressionParser(arguments.getConfiguration())
            .parseExpression(arguments.getConfiguration(), arguments, element.getAttributeValue(attributeName));
    AdminSection section = (AdminSection) expression.execute(arguments.getConfiguration(), arguments);
    if (section != null) {
        HttpServletRequest request = ((SpringWebContext) arguments.getContext()).getHttpServletRequest();

        href = request.getContextPath() + section.getUrl();
    }
    
    Map<String, String> attrs = new HashMap<String, String>();
    attrs.put("href", href);
    return attrs;
}
 

import org.thymeleaf.spring4.context.SpringWebContext; //导入依赖的package包/类
private String createHtmlContentFromTemplate(final User user, final Locale locale, final HttpServletRequest request,
                                             final HttpServletResponse response) {
    Map<String, Object> variables = new HashMap<>();
    variables.put("user", user);
    variables.put("baseUrl", request.getScheme() + "://" +   // "http" + "://
                             request.getServerName() +       // "myhost"
                             ":" + request.getServerPort());
    IWebContext context = new SpringWebContext(request, response, servletContext,
            locale, variables, applicationContext);
    return templateEngine.process("activationEmail", context);
}
 

import org.thymeleaf.spring4.context.SpringWebContext; //导入依赖的package包/类
private String createHtmlContentFromTemplate(final User user, final Locale locale, final HttpServletRequest request,
                                             final HttpServletResponse response) {
    Map<String, Object> variables = new HashMap<String, Object>();
    variables.put("user", user);
    variables.put("baseUrl", request.getScheme() + "://" +   // "http" + "://
                             request.getServerName() +       // "myhost"
                             ":" + request.getServerPort());
    IWebContext context = new SpringWebContext(request, response, servletContext,
            locale, variables, applicationContext);
    return templateEngine.process(MailService.EMAIL_ACTIVATION_PREFIX + MailService.TEMPLATE_SUFFIX, context);
}
 

import org.thymeleaf.spring4.context.SpringWebContext; //导入依赖的package包/类
private String createHtmlContentFromTemplate(final User user, final Locale locale, final HttpServletRequest request,
                                             final HttpServletResponse response) {
    Map<String, Object> variables = new HashMap<String, Object>();
    variables.put("user", user);
    variables.put("baseUrl", request.getScheme() + "://" +   // "http" + "://
                             request.getServerName() +       // "myhost"
                             ":" + request.getServerPort());
    IWebContext context = new SpringWebContext(request, response, servletContext,
            locale, variables, applicationContext);
    return templateEngine.process("activationEmail", context);
}
 

import org.thymeleaf.spring4.context.SpringWebContext; //导入依赖的package包/类
public String evaluateTemplate(String templateName, Locale locale, Map<String,?> variables) {
	IWebContext context = new SpringWebContext(request, null, servletContext, locale, variables, applicationContext);
	return templateEngine.process(templateName, context);

}
 

import org.thymeleaf.spring4.context.SpringWebContext; //导入依赖的package包/类
private ServletContext getServletContext(Arguments arguments) {
       SpringWebContext ctx = (SpringWebContext)arguments.getContext();
       ServletContext application = ctx.getServletContext();
       return application;
}