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251 lines
5.3 KiB
Markdown
251 lines
5.3 KiB
Markdown
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---
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sidebar_position: 10
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description: nonebot.exception 模块
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---
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# nonebot.exception
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本模块包含了所有 NoneBot 运行时可能会抛出的异常。
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这些异常并非所有需要用户处理,在 NoneBot 内部运行时被捕获,并进行对应操作。
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```bash
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NoneBotException
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├── ParserExit
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├── ProcessException
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| ├── IgnoredException
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| ├── MockApiException
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| └── StopPropagation
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├── MatcherException
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| ├── SkippedException
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| | └── TypeMisMatch
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| ├── PausedException
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| ├── RejectedException
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| └── FinishedException
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├── AdapterException
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| ├── NoLogException
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| ├── ApiNotAvailable
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| ├── NetworkError
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| └── ActionFailed
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└── DriverException
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└── WebSocketClosed
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```
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## _class_ `NoneBotException()` {#NoneBotException}
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- **说明**
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所有 NoneBot 发生的异常基类。
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## _class_ `ParserExit(status=0, message=None)` {#ParserExit}
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- **说明**
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[shell_command](./rule.md#shell_command) 处理消息失败时返回的异常
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- **参数**
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- `status` (int)
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- `message` (str | None)
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## _class_ `ProcessException()` {#ProcessException}
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- **说明**
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事件处理过程中发生的异常基类。
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## _class_ `IgnoredException(reason)` {#IgnoredException}
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- **说明**
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指示 NoneBot 应该忽略该事件。可由 PreProcessor 抛出。
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- **参数**
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- `reason` (Any): 忽略事件的原因
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## _class_ `MockApiException(result)` {#MockApiException}
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- **说明**
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指示 NoneBot 阻止本次 API 调用或修改本次调用返回值,并返回自定义内容。可由 api hook 抛出。
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- **参数**
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- `result` (Any): 返回的内容
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## _class_ `StopPropagation()` {#StopPropagation}
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- **说明**
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指示 NoneBot 终止事件向下层传播。
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在 [Matcher.block](./matcher.md#Matcher-block) 为 `True`
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或使用 [Matcher.stop_propagation](./matcher.md#Matcher-stop_propagation) 方法时抛出。
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- **用法**
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```python
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matcher = on_notice(block=True)
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# 或者
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@matcher.handle()
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async def handler(matcher: Matcher):
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matcher.stop_propagation()
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```
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## _class_ `MatcherException()` {#MatcherException}
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- **说明**
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所有 Matcher 发生的异常基类。
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## _class_ `SkippedException()` {#SkippedException}
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- **说明**
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指示 NoneBot 立即结束当前 `Handler` 的处理,继续处理下一个 `Handler`。
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可以在 `Handler` 中通过 [Matcher.skip](./matcher.md#Matcher-skip) 抛出。
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- **用法**
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```python
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def always_skip():
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Matcher.skip()
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@matcher.handle()
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async def handler(dependency = Depends(always_skip)):
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...
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```
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## _class_ `TypeMisMatch(param, value)` {#TypeMisMatch}
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- **说明**
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当前 `Handler` 的参数类型不匹配。
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- **参数**
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- `param` (pydantic.fields.ModelField)
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- `value` (Any)
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## _class_ `PausedException()` {#PausedException}
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- **说明**
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指示 NoneBot 结束当前 `Handler` 并等待下一条消息后继续下一个 `Handler`。可用于用户输入新信息。
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可以在 `Handler` 中通过 [Matcher.pause](./matcher.md#Matcher-pause) 抛出。
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- **用法**
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```python
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@matcher.handle()
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async def handler():
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await matcher.pause("some message")
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```
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## _class_ `RejectedException()` {#RejectedException}
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- **说明**
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指示 NoneBot 结束当前 `Handler` 并等待下一条消息后重新运行当前 `Handler`。可用于用户重新输入。
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可以在 `Handler` 中通过 [Matcher.reject](./matcher.md#Matcher-reject) 抛出。
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- **用法**
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```python
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@matcher.handle()
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async def handler():
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await matcher.reject("some message")
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```
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## _class_ `FinishedException()` {#FinishedException}
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- **说明**
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指示 NoneBot 结束当前 `Handler` 且后续 `Handler` 不再被运行。可用于结束用户会话。
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可以在 `Handler` 中通过 [Matcher.finish](./matcher.md#Matcher-finish) 抛出。
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- **用法**
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```python
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@matcher.handle()
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async def handler():
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await matcher.finish("some message")
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```
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## _class_ `AdapterException(adapter_name)` {#AdapterException}
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- **说明**
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代表 `Adapter` 抛出的异常,所有的 `Adapter` 都要在内部继承自这个 `Exception`
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- **参数**
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- `adapter_name` (str): 标识 adapter
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## _class_ `NoLogException(adapter_name)` {#NoLogException}
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- **说明**
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指示 NoneBot 对当前 `Event` 进行处理但不显示 Log 信息。
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可在 [Event.get_log_string](./adapters/index.md#Event-get_log_string) 时抛出
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- **参数**
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- `adapter_name` (str)
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## _class_ `ApiNotAvailable(adapter_name)` {#ApiNotAvailable}
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- **说明**
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在 API 连接不可用时抛出。
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- **参数**
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- `adapter_name` (str)
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## _class_ `NetworkError(adapter_name)` {#NetworkError}
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- **说明**
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在网络出现问题时抛出,如: API 请求地址不正确, API 请求无返回或返回状态非正常等。
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- **参数**
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- `adapter_name` (str)
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## _class_ `ActionFailed(adapter_name)` {#ActionFailed}
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- **说明**
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API 请求成功返回数据,但 API 操作失败。
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- **参数**
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- `adapter_name` (str)
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## _class_ `DriverException()` {#DriverException}
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- **说明**
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`Driver` 抛出的异常基类
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## _class_ `WebSocketClosed(code, reason=None)` {#WebSocketClosed}
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- **说明**
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WebSocket 连接已关闭
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- **参数**
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- `code` (int)
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- `reason` (str | None)
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