nodered 下载 excel 文件

这种方案并不好，因为不便于管理，如果只是单纯的测试或者临时使用，还是不错的

推荐写一个 python 服务专门来写接口比较好，方便统一管理

[{"id": "b2265f7377b8e823","type": "group","z": "d375f8470116140e","name": "报告文件下载","style": {"label": true},"nodes": ["bbc309c20b6620b1","90f2088cd93f3b1e","0f26e2df2b99e308","5de3d93d41a7d55d"],"x": 234,"y": 539,"w": 712,"h": 82},{"id": "bbc309c20b6620b1","type": "http in","z": "d375f8470116140e","g": "b2265f7377b8e823","name": "","url": "/excel","method": "get","upload": false,"swaggerDoc": "","x": 320,"y": 580,"wires": [["90f2088cd93f3b1e"]]},{"id": "90f2088cd93f3b1e","type": "file in","z": "d375f8470116140e","g": "b2265f7377b8e823","name": "","filename": "payload.path","filenameType": "msg","format": "","chunk": false,"sendError": false,"encoding": "none","allProps": false,"x": 480,"y": 580,"wires": [["0f26e2df2b99e308"]]},{"id": "0f26e2df2b99e308","type": "function","z": "d375f8470116140e","g": "b2265f7377b8e823","name": "set response headers","func": "msg.headers = {\n    'Content-Disposition': 'attachment; filename=\"output.xlsx\"',\n    'Content-Type': 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'\n};\nreturn msg;","outputs": 1,"timeout": 0,"noerr": 0,"initialize": "","finalize": "","libs": [],"x": 680,"y": 580,"wires": [["5de3d93d41a7d55d"]]},{"id": "5de3d93d41a7d55d","type": "http response","z": "d375f8470116140e","g": "b2265f7377b8e823","name": "","statusCode": "","headers": {},"x": 870,"y": 580,"wires": []}
]