生成小程序二维码，图片打不开？
resp=HttpResponseProxy{HTTP/1.1 200 OK [Connection: keep-alive, Date: Wed, 15 Jun 2022 06:49:13 GMT, Content-Type: application/json; encoding=utf-8, RetKey: 11, LogicRet: 40001, Content-Length: 118] ResponseEntityProxy{[Content-Type: application/json; encoding=utf-8,Content-Length: 118,Chunked: false]}}
