model_watermark_generate/watermark_generate/app.py

from flask import Flask, jsonify

from watermark_generate.controller.watermark_generate_controller import generator
from watermark_generate.exceptions import BusinessException



def create_app():
    app = Flask(__name__)
    app.register_blueprint(generator)

    @app.errorhandler(BusinessException)
    def handle_business_exception(ex):
        """处理业务异常，返回JSON提示"""
        return jsonify({"message": ex.message, 'code': ex.code}), 500

    return app