import java.util.ListIterator;
import java.util.Map;
import java.util.Map.Entry;
import org.jspecify.annotations.NullMarked;
import org.jspecify.annotations.Nullable;
import org.junit.Ignore;

/**
 * Base class for map testers.
 *
 * <p>TODO: see how much of this is actually needed once Map testers are written. (It was cloned
 * from AbstractCollectionTester.)
 *
 * @param <K> the key type of the map to be tested.

import org.jspecify.annotations.Nullable;

/**
 * An immutable sorted set with one or more elements. TODO(jlevy): Consider separate class for a
 * single-element sorted set.
 *
 * @author Jared Levy
 * @author Louis Wasserman
 */
@GwtCompatible
@SuppressWarnings({"serial", "rawtypes"})
final class RegularImmutableSortedSet<E> extends ImmutableSortedSet<E> {
  static final RegularImmutableSortedSet<Comparable> NATURAL_EMPTY_SET =

 * See {@link jcifs.Configuration#isDfsConvertToFQDN()} for a workaround.
 *
 * @author mbechler
 */
public class JAASAuthenticator extends Kerb5Authenticator implements CallbackHandler, SmbRenewableCredentials {

    private static final Logger log = LoggerFactory.getLogger(JAASAuthenticator.class);

    /**
     *
     */
    private static final long serialVersionUID = -1648420815038372844L;

import org.junit.jupiter.params.provider.ValueSource;

import jcifs.internal.SMBProtocolDecodingException;
import jcifs.internal.util.SMBUtil;

/**
 * Test class for FileEndOfFileInformation
 */
class FileEndOfFileInformationTest {

    private FileEndOfFileInformation fileInfo;

    @BeforeEach
    void setUp() {
        fileInfo = new FileEndOfFileInformation();
    }

    @Test

    }

    private static class SimpleProblemCollector implements SettingsProblemCollector {

        List<String> messages = new ArrayList<>();

        @Override
        public void add(Severity severity, String message, int line, int column, Exception cause) {
            messages.add(message);
        }
    }

You can create a custom sub-class of `StreamingResponse` that sets the `Content-Type` header to the type of data you're streaming.

For example, you can create a `PNGStreamingResponse` that sets the `Content-Type` header to `image/png` using the `media_type` attribute:

{* ../../docs_src/stream_data/tutorial002_py310.py ln[6,19:20] hl[20] *}

各个章节的内容循序渐进，但是又围绕着单独的主题，所以您可以直接跳转到某个章节以解决您的特定 API 需求。

本教程同样可以作为将来的参考手册，所以您可以随时回到本教程并查阅您需要的内容。

## 运行代码 { #run-the-code }

所有代码片段都可以复制后直接使用（它们实际上是经过测试的 Python 文件）。

要运行任何示例，请将代码复制到 `main.py` 文件中，然后启动 `fastapi dev`：

<div class="termy">

```console
$ <font color="#4E9A06">fastapi</font> dev

  <span style="background-color:#009485"><font color="#D3D7CF"> FastAPI </font></span>  Starting development server 🚀

import org.eclipse.jetty.util.resource.ResourceFactory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * @author shinsuke
 *
 */
public class CrawlerWebServer {
    private static final Logger logger = LoggerFactory.getLogger(CrawlerWebServer.class);

    private File docRoot;

    private Server server;

    private boolean tempDocRoot = false;

    public CrawlerWebServer(final int port) {

import jakarta.annotation.Resource;

/**
 * Service class for managing elevate words functionality.
 * Elevate words are used to boost the relevance of documents containing specific terms in search results.
 * This service provides CRUD operations, CSV import/export, and related functionality.
 */
public class ElevateWordService {

    /** Logger instance for this class */

import org.jspecify.annotations.Nullable;

/**
 * An immutable hash code of arbitrary bit length.
 *
 * @author Dimitris Andreou
 * @author Kurt Alfred Kluever
 * @since 11.0
 */
public abstract class HashCode {
  HashCode() {}

  /** Returns the number of bits in this hash code; a positive multiple of 8. */
  public abstract int bits();

  /**