# Request Forms and Files { #request-forms-and-files }

You can define files and form fields at the same time using `File` and `Form`.

/// info

To receive uploaded files and/or form data, first install <a href="https://github.com/Kludex/python-multipart" class="external-link" target="_blank">`python-multipart`</a>.

Make sure you create a [virtual environment](../virtual-environments.md){.internal-link target=_blank}, activate it, and then install it, for example:

Klaus Post <******@****.***> 1756435188 +0200

import org.lastaflute.web.ruts.multipart.MultipartFormFile;
import org.lastaflute.web.validation.Required;

/**
 * Form for uploading Kuromoji dictionary files to the Fess search engine.
 * Kuromoji is a Japanese morphological analyzer used for tokenizing Japanese text.
 * This form is used in the admin interface to upload custom user dictionaries for Kuromoji.
 */
public class UploadForm {

    /**

                form.autoExpandReplicasForDoc)) {
            saveInfo(messages -> messages.addSuccessStartedDataUpdate(GLOBAL));
        }
        return redirect(getClass());
    }

    /**
     * Reloads the document index by closing and reopening it.
     *

///

## Qué es "Form Data" { #what-is-form-data }

La manera en que los forms de HTML (`<form></form>`) envían los datos al servidor normalmente utiliza una codificación "especial" para esos datos, es diferente de JSON.

**FastAPI** se asegurará de leer esos datos del lugar correcto en lugar de JSON.

/// note | Detalles Técnicos

      exercising permissions granted by this License.

      "Source" form shall mean the preferred form for making modifications,
      including but not limited to software source code, documentation
      source, and configuration files.

      "Object" form shall mean any form resulting from mechanical
      transformation or translation of a Source form, including but
      not limited to compiled object code, generated documentation,

package org.codelibs.fess.app.web.admin.dict.mapping;

import org.lastaflute.web.validation.Required;
import org.lastaflute.web.validation.theme.conversion.ValidateTypeFailure;

/**
 * Form class for editing mapping dictionary entries in the admin interface.
 * This form extends CreateForm to include fields necessary for updating existing mapping dictionary entries.
 * Mapping dictionaries define field mappings and transformations during the indexing process.
 *

package org.codelibs.fess.app.web.admin.dict.synonym;

import org.lastaflute.web.validation.Required;
import org.lastaflute.web.validation.theme.conversion.ValidateTypeFailure;

/**
 * Form class for editing synonym dictionary entries in the admin interface.
 * This form extends CreateForm to include fields necessary for updating existing synonym entries.
 * Synonyms are used to expand search queries by including terms with similar meanings.
 *
 */

import org.lastaflute.web.ruts.multipart.MultipartFormFile;
import org.lastaflute.web.validation.Required;

/**
 * Form for uploading synonym files to the Fess search engine.
 * Synonyms are words or phrases that should be treated as equivalent during search operations.
 * This form is used in the admin interface to upload custom synonym dictionary files.
 */
public class UploadForm {

    /**

package org.codelibs.fess.app.web.admin.dict.kuromoji;

import org.lastaflute.web.validation.Required;
import org.lastaflute.web.validation.theme.conversion.ValidateTypeFailure;

/**
 * Form class for editing Kuromoji dictionary entries in the admin interface.
 * This form extends CreateForm to include fields necessary for updating existing Kuromoji dictionary entries.