springboot+mybatis-plus+达梦数据库，执行查询语句会抛出以下异常：
==> Preparing: SELECT ID,TENANT_ID,JOB_ID,SUB_JOB_ID,REPORT_RES,STATUS,MESSAGE,GUID,TYPE,VIDEO_URL,START_TIME,END_TIME,ESTIMATE_TIME,COMPLETE_PERCENT,CREATE_BY,CREATE_TIME,UPDATE_BY,UPDATE_TIME,IS_DELETED FROM VEQS.EXTRACT_JOB WHERE IS_DELETED=0 AND (JOB_ID = ? AND IS_DELETED = ?)
==> Parameters: ae34da5d64e04cf89bad6ef652f7e1e7(String), 0(Integer)
dm.jdbc.driver.DMException: 连接已重置, 重置原因"网络通信异常"

单机模式可正常运行，主备模式才抛异常