Can I make HTTP POST request from Thymeleaf table in Spring Boot application

Question

I have a Thymeleaf template in a simple Spring Boot application. The template contains a list in a table as follows:

There are 

        

Answer 1

Does anyone know if Thymeleaf allow a POST request per row of a table? Or do I have to write a simple HTML form per row?

HTML doesn't support POST request with links and you have to use forms (as Rayweb_on explained). But Thymeleaf allows you to define custom tags which helps a lot :

Edit

... which would generate following HTML (assuming jQuery is available) :

Edit

Custom tag definition (without error checking to keep it simple) :

/**
 * Custom attribute processor that allows to specify which method (get or post) is used on a standard link.
 */
public class LinkMethodAttrProcessor extends AbstractAttributeTagProcessor {

    private static final String ATTR_NAME = "linkMethod";
    private static final int PRECEDENCE = 10000;

    public LinkMethodAttrProcessor(final String dialectPrefix) {
        super(
                TemplateMode.HTML, // This processor will apply only to HTML mode
                dialectPrefix,     // Prefix to be applied to name for matching
                null,              // No tag name: match any tag name
                false,             // No prefix to be applied to tag name
                ATTR_NAME,         // Name of the attribute that will be matched
                true,              // Apply dialect prefix to attribute name
                PRECEDENCE,        // Precedence (inside dialect's own precedence)
                true);             // Remove the matched attribute afterwards
    }

    @Override
    protected void doProcess(final ITemplateContext context, final IProcessableElementTag tag,
                             final AttributeName attributeName, final String attributeValue,
                             final IElementTagStructureHandler structureHandler) {

        // get the method name (tag parameter)
        final IEngineConfiguration configuration = context.getConfiguration();
        final IStandardExpressionParser parser = StandardExpressions.getExpressionParser(configuration);
        final IStandardExpression expression = parser.parseExpression(context, attributeValue);
        final String method = (String) expression.execute(context);

        // add custom javascript to change link method
        final String link = tag.getAttribute("href").getValue();
        final String action = "$('
').appendTo('body').submit(); return false;";
        structureHandler.setAttribute("onclick", action);
        structureHandler.setAttribute("href", "#");
    }
}

See the Thymelead documentation for example of how this custom attribute needs to be registered.