Full URL Parameter Support

// Single path parameter
@Page("/users/{id}")
public class UserPage extends HtmlPage
{
    @Override
    protected void createBody(Body body)
    {
        // Access the path parameter
        String userId = getUrlParameters().getParameter("id");
        User user = userService.findById(userId);

        body.addElement(new H1(user.getName()));
    }
}

// Multiple path parameters
@Page("/products/{category}/{slug}")
public class ProductPage extends HtmlPage
{
    @Override
    protected void createBody(Body body)
    {
        String category = getUrlParameters().getParameter("category");
        String slug = getUrlParameters().getParameter("slug");

        Product product = productService.findByCategoryAndSlug(category, slug);
        displayProduct(product);
    }
}

// Nested path parameters
@Page("/organizations/{orgId}/teams/{teamId}/members/{memberId}")
public class MemberPage extends HtmlPage
{
    @Override
    protected void createBody(Body body)
    {
        UrlParameters urlParams = getUrlParameters();
        String orgId = urlParams.getParameter("orgId");
        String teamId = urlParams.getParameter("teamId");
        String memberId = urlParams.getParameter("memberId");

        // Access nested resources
    }
}

// URL: /search?q=widgets&page=2&sort=price&order=asc
@Page("/search")
public class SearchPage extends HtmlPage
{
    @Override
    protected void createBody(Body body)
    {
        Parameters params = getParameters();

        // Get string value
        String query = params.getParameterValue("q");

        // Get string with default (check if exists first)
        String sort = params.containsParameter("sort")
            ? params.getParameterValue("sort")
            : "relevance";

        // Get as integer (returns null if not found)
        Integer pageParam = params.getParameterValueAsInt("page");
        int page = (pageParam != null) ? pageParam : 1;

        // Get as boolean
        // URL: ?featured=true
        boolean featured = params.getParameterValueAsBoolean("featured");

        // Get as double
        // URL: ?minPrice=9.99
        Double minPriceParam = params.getParameterValueAsDouble("minPrice");
        double minPrice = (minPriceParam != null) ? minPriceParam : 0.0;

        // Check if parameter exists
        if (params.containsParameter("category"))
        {
            String category = params.getParameterValue("category");
        }

        // Get multi-value parameter
        // URL: ?tag=java&tag=web&tag=framework
        List<String> tags = params.getParameterValues("tag");

        // Perform search with parameters
        SearchResults results = searchService.search(query, page, sort, featured);
        displayResults(results);
    }
}