在Python与Orthanc交互时，处理DICOM影像上传失败的情况可以从以下几个方面入手： ### 捕获HTTP状态码 在使用`requests`库上传DICOM影像时，可以通过检查响应的状态码来判断上传是否成功。如果状态码不是200，说明上传失败，可以根据不同的状态码进行相应的处理。示例代码如下： ```python import requests def upload_dicom_file(file_path, orthanc_url): url = f"{orthanc_url}/instances" try: with open(file_path, 'rb') as file: response = requests.post(url, data=file) if response.status_code == 200: print("DICOM file uploaded successfully.") else: print(f"Upload failed with status code: {response.status_code}") if response.status_code == 400: print("Bad request. Check the DICOM file format.") elif response.status_code == 401: print("Unauthorized. Check your authentication credentials.") elif response.status_code == 500: print("Internal server error. Contact the server administrator.") except requests.RequestException as e: print(f"Request error: {e}") ``` ### 重试机制 对于一些临时的网络问题或服务器负载问题，可以实现重试机制。示例代码如下： ```python import requests import time def upload_dicom_file(file_path, orthanc_url, max_retries=3, retry_delay=5): url = f"{orthanc_url}/instances" retries = 0 while retries < max_retries: try: with open(file_path, 'rb') as file: response = requests.post(url, data=file) if response.status_code == 200: print("DICOM file uploaded successfully.") return else: print(f"Upload failed with status code: {response.status_code}. Retrying in {retry_delay} seconds...") except requests.RequestException as e: print(f"Request error: {e}. Retrying in {retry_delay} seconds...") retries += 1 time.sleep(retry_delay) print("Max retries reached. Upload failed.") ``` ### 日志记录 在上传失败时，记录详细的错误信息，包括请求的URL、请求头、请求体以及响应内容等，方便后续分析问题。示例代码如下： ```python import requests import logging logging.basicConfig(level=logging.ERROR) def upload_dicom_file(file_path, orthanc_url): url = f"{orthanc_url}/instances" try: with open(file_path, 'rb') as file: response = requests.post(url, data=file) if response.status_code != 200: logging.error(f"Upload failed. URL: {url}, Status code: {response.status_code}, Response: {response.text}") except requests.RequestException as e: logging.error(f"Request error: {e}") ```