<class java.clone="deep">
      <name>Activation</name>
      <version>1.0.0+</version>
      <description>
        The conditions within the build runtime environment which will trigger
        the automatic inclusion of the parent build profile.
      </description>
      <fields>
        <field>
          <name>activeByDefault</name>
          <version>1.0.0+</version>
          <type>boolean</type>

/// note | 技术细节

OpenAPI 规范中的 `servers` 属性是可选的。

如果你没有指定 `servers` 参数，并且 `root_path` 等于 `/`，则默认情况下，生成的 OpenAPI 模式中会完全省略 `servers` 属性，这等价于只有一个 `url` 值为 `/` 的服务器。

///

### 从 `root_path` 禁用自动服务器 { #disable-automatic-server-from-root-path }

如果你不希望 **FastAPI** 包含一个使用 `root_path` 的自动服务器，可以使用参数 `root_path_in_servers=False`：

{* ../../docs_src/behind_a_proxy/tutorial004_py310.py hl[9] *}

这样它就不会被包含到 OpenAPI 模式中。

            String[] result = new String[2];
            StringBuilder key = new StringBuilder();
            StringBuilder value = new StringBuilder();

            // state of the automaton:
            // 0: key parsing
            // 1: antislash found while parsing the key
            // 2: separator crossing
            // 3: white spaces
            // 4: value parsing
            int state = 0;

            String[] result = new String[2];
            StringBuilder key = new StringBuilder();
            StringBuilder value = new StringBuilder();

            // state of the automaton:
            // 0: key parsing
            // 1: antislash found while parsing the key
            // 2: separator crossing
            // 3: white spaces
            // 4: value parsing
            int state = 0;

또한 [VS Code 확장](../editor-support.md)이나 [FastAPI Cloud](https://fastapicloud.com) 같은 다른 도구들이 이를 찾지 못할 수도 있으므로, `pyproject.toml`의 `entrypoint`를 사용하는 것을 권장합니다.

///

## 자동 API 문서 확인하기 { #check-the-automatic-api-docs }

이제 앱을 실행하세요:

<div class="termy">

```console
$ fastapi dev

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

    /**
     * Delay in milliseconds before attempting witness reconnection
     */
    protected long witnessReconnectDelay = 1000; // 1 second
    /**
     * Flag indicating whether automatic witness service discovery is enabled
     */
    protected boolean witnessServiceDiscovery = true;

    // SMB3 Lease support
    protected boolean useLeases = true;

    // SMB3 Persistent handle support

  /** Constructor for use by subclasses. */
  protected Converter() {
    this(true);
  }

  /** Constructor used only by {@code LegacyConverter} to suspend automatic null-handling. */
  Converter(boolean handleNullAutomatically) {
    this.handleNullAutomatically = handleNullAutomatically;
  }

  // SPI methods (what subclasses must implement)

  /**

//              creating a function with no body (e.g. identity or permutation)
//              and the case of creating a function whose body contains all
//              the nodes in the graph (except for the automatic skipping, see
//              below).
//  opers - Array of operations to become the body of the function or null.
//          - If no array is given (`num_opers` = -1), all the

`servers` パラメータを指定せず、かつ `root_path` が `/` の場合、生成される OpenAPI スキーマからは `servers` プロパティが既定で完全に省略されます。これは、`url` が `/` の server が 1 つあるのと同等です。

///

### `root_path` 由来の自動 server を無効化 { #disable-automatic-server-from-root-path }

`root_path` を用いた自動的な server を **FastAPI** に含めてほしくない場合は、パラメータ `root_path_in_servers=False` を使用します:

{* ../../docs_src/behind_a_proxy/tutorial004_py310.py hl[9] *}

すると、OpenAPI スキーマには含まれません。

    public static final String FAIL = "fail";

    /** Status constant representing stopped state. */
    public static final String STOP = "stop";

    /** Constant representing automatic mode. */
    public static final String AUTO = "auto";

    /** Constant representing no value or empty state. */
    public static final String NONE = "none";