Ben Beasley <******@****.***> 1758043308 +0100

from fastapi import FastAPI, HTTPException
from fastapi.exception_handlers import (
    http_exception_handler,
    request_validation_exception_handler,
)
from fastapi.exceptions import RequestValidationError
from starlette.exceptions import HTTPException as StarletteHTTPException

app = FastAPI()


@app.exception_handler(StarletteHTTPException)
async def custom_http_exception_handler(request, exc):
    print(f"OMG! An HTTP error!: {repr(exc)}")

def server_error_exception_handler(request, exception):
    return JSONResponse(status_code=500, content={"exception": "server-error"})


app = FastAPI(
    exception_handlers={
        HTTPException: http_exception_handler,
        RequestValidationError: request_validation_exception_handler,
        Exception: server_error_exception_handler,
    }
)

client = TestClient(app)

Si quieres usar la excepción junto con los mismos manejadores de excepciones predeterminados de **FastAPI**, puedes importar y reutilizar los manejadores de excepciones predeterminados de `fastapi.exception_handlers`:

{* ../../docs_src/handling_errors/tutorial006_py310.py hl[2:5,15,21] *}

Exception’ı, **FastAPI**’nin aynı varsayılan exception handler’larıyla birlikte kullanmak isterseniz, varsayılan exception handler’ları `fastapi.exception_handlers` içinden import edip yeniden kullanabilirsiniz:

{* ../../docs_src/handling_errors/tutorial006_py310.py hl[2:5,15,21] *}

```Python
from starlette.exceptions import HTTPException as StarletteHTTPException
```

### 复用 **FastAPI** 的异常处理器 { #reuse-fastapis-exception-handlers }

如果你想在自定义处理后仍复用 **FastAPI** 的默认异常处理器，可以从 `fastapi.exception_handlers` 导入并复用这些默认处理器：

{* ../../docs_src/handling_errors/tutorial006_py310.py hl[2:5,15,21] *}

If you want to use the exception along with the same default exception handlers from  **FastAPI**, you can import and reuse the default exception handlers from `fastapi.exception_handlers`:

{* ../../docs_src/handling_errors/tutorial006_py310.py hl[2:5,15,21] *}

```Python
from starlette.exceptions import HTTPException as StarletteHTTPException
```

### 重用 **FastAPI** 的例外處理器 { #reuse-fastapis-exception-handlers }

如果你想在使用例外的同時，沿用 **FastAPI** 的預設例外處理器，你可以從 `fastapi.exception_handlers` 匯入並重用預設的處理器：

{* ../../docs_src/handling_errors/tutorial006_py310.py hl[2:5,15,21] *}

 * under the License.
 */
package org.apache.maven.exception;

/**
 * Transform an exception into useful end-user message.
 *
 * @since 3.0-alpha-3
 */
public interface ExceptionHandler {
    ExceptionSummary handleException(Throwable e);

from starlette.exceptions import HTTPException as StarletteHTTPException

app = FastAPI()


@app.exception_handler(StarletteHTTPException)
async def http_exception_handler(request, exc):
    return PlainTextResponse(str(exc.detail), status_code=exc.status_code)


@app.exception_handler(RequestValidationError)
async def validation_exception_handler(request, exc: RequestValidationError):
    message = "Validation errors:"