* Here's the order of events that we want.
     *
     * 1. The client thread begins to block on a get() call to a future.
     * 2. The client thread is interrupted sometime before the result would be
     *   available.
     * 3. We expect the client's get() to throw an InterruptedException.
     * 4. We expect the client thread's interrupt state to be false.
     * 5. The client thread again makes a blocking call to get().

 * hashes via NTLM SSP with MSIE. It might also be used directly by servlet
 * containers to incorporate similar functionality.
 * <p>
 * How NTLMSSP is used in conjunction with HTTP and MSIE clients is
 * described in an <A HREF="http://www.innovation.ch/java/ntlm.html">NTLM
 * Authentication Scheme for HTTP</A>.
 * <p>
 * Also, read <a
 * href="../../../ntlmhttpauth.html">jCIFS NTLM HTTP Authentication and

	// accordingly. Client receives a HTTP error for invalid/unsupported
	// signatures.
	//
	// Validates all incoming requests to have a valid date header.
	setAuthMiddleware,
	// Redirect some pre-defined browser request paths to a static location
	// prefix.
	setBrowserRedirectMiddleware,
	// Adds 'crossdomain.xml' policy middleware to serve legacy flash clients.
	setCrossDomainPolicyMiddleware,

	// server admin credentials change. This is done to ensure
	// that clients cannot decode the token using the temp
	// secret keys and generate an entirely new claim by essentially
	// hijacking the policies. We need to make sure that this is
	// based on admin credential such that token cannot be decoded
	// on the client side and is treated like an opaque value.
	claims, err := auth.ExtractClaims(token, secret)

## 处理断开连接和多个客户端 { #handling-disconnections-and-multiple-clients }

当 WebSocket 连接关闭时，`await websocket.receive_text()` 将引发 `WebSocketDisconnect` 异常，您可以捕获并处理该异常，就像本示例中的示例一样。

{* ../../docs_src/websockets_/tutorial003_py310.py hl[79:81] *}

尝试以下操作：

* 使用多个浏览器选项卡打开应用程序。
* 从这些选项卡中发送消息。
* 然后关闭其中一个选项卡。

这将引发 `WebSocketDisconnect` 异常，并且所有其他客户端都会收到类似以下的消息：

```
Client #1596980209979 left the chat
```

/// tip

 * Provides common functionality for handling initialization parameters,
 * content length checks, and default method implementations.
 * It defines the basic structure and configuration options for crawler clients.
 */
public abstract class AbstractCrawlerClient implements CrawlerClient {

    private static final Logger logger = LogManager.getLogger(AbstractCrawlerClient.class);

## 處理斷線與多個用戶端 { #handling-disconnections-and-multiple-clients }

當 WebSocket 連線關閉時，`await websocket.receive_text()` 會拋出 `WebSocketDisconnect` 例外，你可以像範例中那樣捕捉並處理。

{* ../../docs_src/websockets_/tutorial003_py310.py hl[79:81] *}

試用方式：

* 用多個瀏覽器分頁開啟該應用。
* 從每個分頁傳送訊息。
* 然後關閉其中一個分頁。

這會引發 `WebSocketDisconnect` 例外，其他所有用戶端都會收到類似以下的訊息：

```
Client #1596980209979 left the chat
```

/// tip

### Client Binaries

filename | sha512 hash
-------- | -----------
[kubernetes-client-darwin-amd64.tar.gz](https://dl.k8s.io/v1.22.17/kubernetes-client-darwin-amd64.tar.gz) | d5362f67b1e3730b00ced11be8ac5415d6a0ca7ea4211422530f71e28a2d944fd7fc76949c3fbf0babb72dce4f13be8c383acb20b2b96f63cf3c4442e0b8ec44

[kubernetes-client-linux-386.tar.gz](https://dl.k8s.io/v1.8.15/kubernetes-client-linux-386.tar.gz) | `31000c9ff4619139f59d8e1221d95b0d4f9a58a8dae4fadf2b64bab8712708cf`
[kubernetes-client-linux-amd64.tar.gz](https://dl.k8s.io/v1.8.15/kubernetes-client-linux-amd64.tar.gz) | `8cbb0ab062dde282f77f56f551519f6e80ed6090e112927eadb77d87a4b94477`

    - [Client Binaries](#client-binaries-10)
    - [Server Binaries](#server-binaries-10)
    - [Node Binaries](#node-binaries-10)
  - [Changelog since v1.16.5](#changelog-since-v1165)
- [v1.16.5](#v1165)
  - [Downloads for v1.16.5](#downloads-for-v1165)
    - [Client Binaries](#client-binaries-11)
    - [Server Binaries](#server-binaries-11)
    - [Node Binaries](#node-binaries-11)