# 表单数据

接收的不是 JSON，而是表单字段时，要使用 `Form`。

/// info | 说明

要使用表单，需预先安装 <a href="https://github.com/Kludex/python-multipart" class="external-link" target="_blank">`python-multipart`</a>。

例如，`pip install python-multipart`。

///

## 导入 `Form`

从 `fastapi` 导入 `Form`：

{* ../../docs_src/request_forms/tutorial001.py hl[1] *}

## 定义 `Form` 参数

创建表单（`Form`）参数的方式与 `Body` 和 `Query` 一样：

 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.app.web.admin.design;

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

/**
 * Form class for design file management in the admin interface.
 * Handles upload and management of design templates and CSS files.
 */
public class DesignForm {

    /**

import org.lastaflute.web.exception.Forced404NotFoundException;
import org.lastaflute.web.ruts.multipart.MultipartFormFile;
import org.lastaflute.web.ruts.multipart.MultipartRequestHandler;
import org.lastaflute.web.ruts.multipart.MultipartRequestWrapper;
import org.lastaflute.web.ruts.multipart.exception.MultipartExceededException;
import org.lastaflute.web.util.LaServletContextUtil;

import jakarta.servlet.ServletContext;

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.app.web.admin.dict.stemmeroverride;

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

/**
 * Form for uploading stemmer override files to the Fess search engine.

import okio.Buffer
import okio.BufferedSource
import okio.ByteString.Companion.encodeUtf8
import okio.Options
import okio.Source
import okio.Timeout
import okio.buffer

/**
 * Reads a stream of [RFC 2046][rfc_2046] multipart body parts. Callers read parts one-at-a-time
 * until [nextPart] returns null. After calling [nextPart] any preceding parts should not be read.
 *
 * Typical use loops over the parts in sequence:
 *
 * ```kotlin

                    "summary": "Create File",
                    "operationId": "create_file_files__post",
                    "requestBody": {
                        "content": {
                            "multipart/form-data": {
                                "schema": {
                                    "$ref": "#/components/schemas/Body_create_file_files__post"
                                }
                            }

	fi
done

echo "{\"Parts\":[${PARTS}]}" >fileparts.json
jq <fileparts.json
aws s3api --endpoint-url=https://localhost:9001 complete-multipart-upload --multipart-upload file://fileparts.json --bucket test-bucket --key mpartobj --upload-id "${UPLOAD_ID}" --no-verify-ssl --profile enterprise
sleep 120

# List the objects from replicated site

          sudo sysctl net.ipv6.conf.default.disable_ipv6=0
          make test-versioning

      - name: Test Multipart upload with failures
        run: |
          sudo sysctl net.ipv6.conf.all.disable_ipv6=0
          sudo sysctl net.ipv6.conf.default.disable_ipv6=0

	if result.IsTruncated {
		t.Errorf("%s: Expected IsTruncated to be `false`, but instead found it to be `%v`", instanceType, result.IsTruncated)
	}

	uploadContent := "The specified multipart upload does not exist. The upload ID might be invalid, or the multipart upload might have been aborted or completed."
	var opts ObjectOptions
	// check before paging occurs.
	for i := range 5 {
		key := "obj" + strconv.Itoa(i)

/// info

To use forms, 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:

```console
$ pip install python-multipart
```

///

/// note

This is supported since FastAPI version `0.113.0`. 🤓