# 请求文件

`File` 用于定义客户端的上传文件。

/// info | 说明

因为上传文件以「表单数据」形式发送。

所以接收上传文件，要预先安装 <a href="https://github.com/Kludex/python-multipart" class="external-link" target="_blank">`python-multipart`</a>。

例如： `pip install python-multipart`。

///

## 导入 `File`

从 `fastapi` 导入 `File` 和 `UploadFile`：

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

## 定义 `File` 参数

创建文件（`File`）参数的方式与 `Body` 和 `Form` 一样：

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *

main(String[]) throws Exception; private static java.util.Map parseSystemPropertie(String[]); private static void addSystemProperties(java.io.File); private static java.io.File rootDir(java.io.File); private static java.io.File wrapperProperties(java.io.File); private static java.io.File wrapperJar(); static String wrapperVersion(); private static java.io.File mavenUserHome(); } org/apache/maven/wrapper/PathAssembler$LocalDistribution.class package org.apache.maven.wrapper; public synchronized class...

    private final File tempFile;

    private final FileInputStream fileInputStream;

    /**
     * A class that provides an input stream for reading from a temporary file.
     * This class wraps a {@link FileInputStream} to read from the specified temporary file.
     *
     * @param tempFile the temporary file to be read
     * @throws FileNotFoundException if the specified file does not exist
     */

        File source = new File(args[1]);
        File dest = new File(args[2]);
        String destDir = "";
        if (args.length > 3) {
            destDir = args[3];
        }

        System.out.format("=> stylesheet %s%n", stylesheet);
        System.out.format("=> source %s%n", source);
        System.out.format("=> dest %s%n", dest);
        System.out.format("=> destDir %s%n", destDir);

    @Test
    void testProjectInheritance() throws Exception {
        File localRepo = getLocalRepositoryPath();
        File pom0 = new File(localRepo, "p0/pom.xml");

        File pom0Basedir = pom0.getParentFile();

        File pom1 = new File(pom0Basedir, "p1/pom.xml");

        // load everything...
        MavenProject project0 = getProject(pom0);

                    spec.getSourceLinks().add(sourceLinkSpec);
                }
            );
    }

    private static URI toUri(File projectRootDir, File file, String commitId) {
        try {
            URI relativeLocation = projectRootDir.toURI().relativize(file.toURI());
            return new URI("https://github.com/gradle/gradle/blob/" + commitId + "/" + relativeLocation);
        } catch (URISyntaxException e) {

/**
 * Represents a file or directory entry in SMB1 protocol.
 */
public interface FileEntry {

    /**
     * Gets the name of the file or directory.
     *
     * @return the file or directory name
     */
    String getName();

    /**
     * Gets the type of the entry.
     *
     * @return the entry type
     */
    int getType();

    /**
     * Gets the file attributes.
     *

    /**
     * File information class for file names only.
     */
    public static final byte FILE_NAMES_INFO = 0x0C;

    /**
     * File information class for both names with file IDs.
     */
    public static final byte FILE_ID_BOTH_DIRECTORY_INFO = 0x24;

    /**
     * File information class for full directory information with file IDs.
     */

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *