增加数据库进出片sql语句，获取通讯信息数据，调整逻辑判断

wu

2023-09-07 44b8aac231886b27e20a0797ee1a253250c6026e

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package com.example.springboot.service;
 
import org.springframework.stereotype.Service;
 
 
@Service
public class HomeService {
    
}