import org.codelibs.fess.api.engine.SearchEngineApiManager;
import org.codelibs.fess.app.web.base.FessAdminAction;
import org.codelibs.fess.util.RenderDataUtil;
import org.lastaflute.web.Execute;
import org.lastaflute.web.response.HtmlResponse;
import org.lastaflute.web.ruts.process.ActionRuntime;

import jakarta.annotation.Resource;

/**
 * Admin action for Dashboard.
 *
 */
public class AdminDashboardAction extends FessAdminAction {

import org.codelibs.fess.dict.DictionaryItem;
import org.codelibs.fess.dict.DictionaryManager;
import org.codelibs.fess.util.RenderDataUtil;
import org.lastaflute.web.Execute;
import org.lastaflute.web.response.HtmlResponse;
import org.lastaflute.web.ruts.process.ActionRuntime;

import jakarta.annotation.Resource;

/**
 * Admin action for Dictionary management.
 *
 */
public class AdminDictAction extends FessAdminAction {

import org.codelibs.fess.mylasta.action.FessUserBean;
import org.codelibs.fess.util.ComponentUtil;
import org.dbflute.optional.OptionalThing;
import org.lastaflute.web.Execute;
import org.lastaflute.web.response.HtmlResponse;

/**
 * The logout action.
 */
public class LogoutAction extends FessSearchAction {

    /**
     * Default constructor.
     */
    public LogoutAction() {
        super();
    }

import org.codelibs.fess.app.web.base.FessSearchAction;
import org.codelibs.fess.app.web.base.SearchForm;
import org.codelibs.fess.util.RenderDataUtil;
import org.lastaflute.web.Execute;
import org.lastaflute.web.response.HtmlResponse;

/**
 * The action for the root of the application.
 */
public class RootAction extends FessSearchAction {

    /**
     * Constructor.
     */
    public RootAction() {
        super();
    }

     */
    @Execute
    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse index() {
        saveToken();
        return asListHtml();
    }

    /**
     * Upload a file.
     * @param form The upload form.
     * @return The HTML response.
     */
    @Execute
    @Secured({ ROLE })
    public HtmlResponse upload(final UploadForm form) {
        validate(form, messages -> {}, this::asListHtml);

import org.codelibs.fess.mylasta.mail.TestmailPostcard;
import org.codelibs.fess.util.ComponentUtil;
import org.lastaflute.core.mail.Postbox;
import org.lastaflute.web.Execute;
import org.lastaflute.web.response.HtmlResponse;
import org.lastaflute.web.ruts.process.ActionRuntime;

import jakarta.annotation.Resource;

/**
 * Admin action for General settings.
 *
 */
public class AdminGeneralAction extends FessAdminAction {

import org.dbflute.util.DfTypeUtil;
import org.lastaflute.web.path.ActionAdjustmentProvider;
import org.lastaflute.web.path.FormMappingOption;
import org.lastaflute.web.response.ActionResponse;
import org.lastaflute.web.response.HtmlResponse;
import org.lastaflute.web.response.JsonResponse;
import org.lastaflute.web.response.StreamResponse;
import org.lastaflute.web.response.XmlResponse;
import org.lastaflute.web.ruts.process.ActionRuntime;

/**

     */
    protected HtmlResponse redirectToLogin() {
        searchHelper.storeSearchParameters();
        return systemHelper.getRedirectResponseToLogin(redirect(SsoAction.class));
    }

    /**
     * Redirects the user to the root path of the application.
     *
     * @return HTML response that redirects to the root page
     */
    protected HtmlResponse redirectToRoot() {

- Hierarchy: `TypicalAction` → `FessBaseAction` → `FessAdminAction`/`FessSearchAction`
- `@Execute` marks web endpoints
- `@Resource` for DI
- `@Secured({ "role", "role-view" })` for authorization
- Return `HtmlResponse` for JSP, `JsonResponse` for APIs

### Service
- Inject behaviors (Bhv) for data access
- Use `OptionalEntity<T>` for nullable returns
- Plain classes (no extends/implements)

### Helper

Also, before that, in previous versions, the `request` object was passed as part of the key-value pairs in the context for Jinja2.

///

/// tip

By declaring `response_class=HTMLResponse` the docs UI will be able to know that the response will be HTML.

///

/// note | Technical Details

You could also use `from starlette.templating import Jinja2Templates`.