经历类似https://zhuanlan.zhihu.com/p/66044862
不是dubbo271的版本bug，是引入的dubbo有高低版本的依赖冲突，同时引入了alibaba的dubbo和apache的dubbo，且版本也不一致。
引入新的二方包后要进行兼容性检查！！！
message can not send, because channel is closed
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