增加实体类、 Mapper，websocket服务类、封装rabbitmq 发送接收等方法

wuyouming666

2024-02-28 d765f491fe415a218975892c6f4651c13764e1f3

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------------------------------------------------------------------------------- 
Test set: com.mes.MesApplicationTests 
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Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 7.757 s - in com.mes.MesApplicationTests