* Constructs an SmbException with the specified detail message
     *
     * @param msg the detail message
     */
    public SmbException(final String msg) {
        super(msg);
        this.status = NT_STATUS_UNSUCCESSFUL;
    }

    /**
     * Constructs an SmbException with the specified detail message and root cause
     *
     * @param msg the detail message

    if x_token != "fake-super-secret-token":
        raise HTTPException(status_code=400, detail="X-Token header invalid")


async def verify_key(x_key: Annotated[str, Header()]):
    if x_key != "fake-super-secret-key":
        raise HTTPException(status_code=400, detail="X-Key header invalid")
    return x_key


app = FastAPI(dependencies=[Depends(verify_token), Depends(verify_key)])


@app.get("/items/")

                        "title": "HTTPValidationError",
                        "type": "object",
                        "properties": {
                            "detail": {
                                "title": "Detail",
                                "type": "array",
                                "items": {
                                    "$ref": "#/components/schemas/ValidationError"

                        "message": "File limit exceeded",
                    },
                )
            return message

        return inner

    async def __call__(self, scope, receive, send):
        if scope["type"] != "http" or self.max_content_size is None:
            await self.app(scope, receive, send)
            return

        wrapper = self.receive_wrapper(receive)
        await self.app(scope, wrapper, send)

    assert response.json() == {"detail": "Not authenticated"}
    assert response.headers["WWW-Authenticate"] == "Digest"


def test_security_http_digest_incorrect_scheme_credentials():
    response = client.get(
        "/users/me", headers={"Authorization": "Other invalidauthorization"}
    )
    assert response.status_code == 401, response.text
    assert response.json() == {"detail": "Not authenticated"}

    }

    /**
     * Tests whether the output stream is currently open.
     *
     * @return whether the stream is open
     */
    public boolean isOpen() {
        return this.handle != null && this.handle.isValid();
    }

    /**
     * Ensures that the file handle is open and returns it.
     *
     * @return the open file handle
     * @throws CIFSException if an error occurs opening the file
     */

`HTTPException` 是额外包含了和 API 有关数据的常规 Python 异常。

因为是 Python 异常，所以不能 `return`，只能 `raise`。

这也意味着，如果你在*路径操作函数*里调用的某个工具函数内部触发了 `HTTPException`，那么*路径操作函数*中后续的代码将不会继续执行，请求会立刻终止，并把 `HTTPException` 的 HTTP 错误发送给客户端。

在介绍依赖项与安全的章节中，你可以更直观地看到用 `raise` 异常代替 `return` 值的优势。

本例中，客户端用不存在的 `ID` 请求 `item` 时，触发状态码为 `404` 的异常：

{* ../../docs_src/handling_errors/tutorial001_py310.py hl[11] *}

  }

  private static String newString(char... chars) {
    return new String(chars);
  }

  private static byte[] toByteArray(int... bytes) {
    byte[] realBytes = new byte[bytes.length];
    for (int i = 0; i < bytes.length; i++) {
      realBytes[i] = (byte) bytes[i];
    }
    return realBytes;
  }

  private static void assertWellFormed(int... bytes) {

app = FastAPI()

items = {"foo": "The Foo Wrestlers"}


@app.get("/items/{item_id}")
async def read_item(item_id: str):
    if item_id not in items:
        raise HTTPException(status_code=404, detail="Item not found")

                        "title": "HTTPValidationError",
                        "type": "object",
                        "properties": {
                            "detail": {
                                "title": "Detail",
                                "type": "array",
                                "items": {
                                    "$ref": "#/components/schemas/ValidationError"