调试了好久不知道为啥返回 502

def getVerifyCode(self, img: str) -> Optional[str]:
"""
请求 OCR 服务解析验证码
"""
url = "http://localhost:8000/ocr"
data = {"image": img}
res = self.h.post(url, data=data)
if res.status_code != 200:
return None
res = res.json()
if res["code"] == 0:
return res[data]
else:
raise Exception(f"验证码识别失败: {res}")
img:
data:image/jpeg;base64,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
用 API 工具请求又是正常的:

调试了好久不知道为啥返回 502

img:
用 API 工具请求又是正常的: