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jdbc下载地址：https://repo1.maven.org/maven2/mysql/mysql-connector-java/

1.安装存储库RPM： yum install https://download.postgresql.org/pub/repos/yum/reporpms/EL-7-x86_64/pgdg-redhat-repo-latest.noarch.rpm 2.安装客户端软件包： yum install postgresql11 3.安装服务器包： yum install postgresql11...

参考：https://thingsboard.io/docs/user-guide/install/rhel/?rhelThingsboardDatabase=postgresql 先决条件 yum install -y nano wget yum install -y https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noar...