///

## 自定义头部

请注意，可以使用'X-'前缀添加自定义专有头部。

///

## その他のドキュメント

オプションの詳細については、Starletteのドキュメントを確認してください。

* <a href="https://www.starlette.dev/websockets/" class="external-link" target="_blank"> `WebSocket` クラス</a>

/// tip | Совет

Сам обратный вызов — это всего лишь HTTP-запрос.

Реализуя обратный вызов, вы можете использовать, например, <a href="https://www.python-httpx.org" class="external-link" target="_blank">HTTPX</a> или <a href="https://requests.readthedocs.io/" class="external-link" target="_blank">Requests</a>.

///

## Напишите код документации обратного вызова { #write-the-callback-documentation-code }

* <a href="https://www.uvicorn.dev/" class="external-link" target="_blank">Uvicorn</a>: um servidor ASGI de alta performance.
* <a href="https://hypercorn.readthedocs.io/" class="external-link" target="_blank">Hypercorn</a>: um servidor ASGI compatível com HTTP/2, Trio e outros recursos.
* <a href="https://github.com/django/daphne" class="external-link" target="_blank">Daphne</a>: servidor ASGI construído para Django Channels.

import org.codelibs.core.exception.ClassNotFoundRuntimeException;
import org.codelibs.core.exception.IORuntimeException;
import org.codelibs.core.message.MessageFormatter;

/**
 * Utility class for handling {@link ClassLoader}.
 *
 * @author koichik
 */
public abstract class ClassLoaderUtil {

    /**
     * Do not instantiate.
     */
    protected ClassLoaderUtil() {
    }

    /**

# CORS（跨域资源共享）

<a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS" class="external-link" target="_blank">CORS 或者「跨域资源共享」</a> 指浏览器中运行的前端拥有与后端通信的 JavaScript 代码，而后端处于与前端不同的「源」的情况。

## 源

源是协议（`http`，`https`）、域（`myapp.com`，`localhost`，`localhost.tiangolo.com`）以及端口（`80`、`443`、`8080`）的组合。

因此，这些都是不同的源：

* `http://localhost`
* `https://localhost`
* `http://localhost:8080`

即使它们都在 `localhost` 中，但是它们使用不同的协议或者端口，所以它们都是不同的「源」。

## 步骤

import org.codehaus.plexus.interpolation.PrefixedValueSourceWrapper;
import org.codehaus.plexus.interpolation.QueryEnabledValueSource;

/**
 * Wraps an arbitrary object with an {@link ObjectBasedValueSource} instance, then
 * wraps that source with a {@link PrefixedValueSourceWrapper} instance, to which
 * this class delegates all of its calls.
 *
 * @deprecated use {@code org.apache.maven.api.services.ModelBuilder} instead
 */

import java.util.Objects;

import org.apache.maven.api.annotations.Nullable;
import org.apache.maven.api.cli.Logger;

import static java.util.Objects.requireNonNull;

/**
 * System {@link Logger}. Uses provided {@link PrintStream}s or {@link System#err} ones as fallback.
 * This logger is used in case of "early failures" (when no logging may be set up yet).
 */
public class SystemLogger implements Logger {
    private final PrintWriter out;

Cualquier función que sea válida para usar con:

* <a href="https://docs.python.org/3/library/contextlib.html#contextlib.contextmanager" class="external-link" target="_blank">`@contextlib.contextmanager`</a> o
* <a href="https://docs.python.org/3/library/contextlib.html#contextlib.asynccontextmanager" class="external-link" target="_blank">`@contextlib.asynccontextmanager`</a>

sería válida para usar como una dependencia en **FastAPI**.

Qualquer função que possa ser utilizada com:

* <a href="https://docs.python.org/3/library/contextlib.html#contextlib.contextmanager" class="external-link" target="_blank">`@contextlib.contextmanager`</a> ou
* <a href="https://docs.python.org/3/library/contextlib.html#contextlib.asynccontextmanager" class="external-link" target="_blank">`@contextlib.asynccontextmanager`</a>

pode ser utilizada como uma dependência do **FastAPI**.