假设你在 UNIX/Linux 平台上，想法是你做一个

Assuming that you are on a UNIX/Linux platform, the idea is that you do a

ssh -L 3306:mysql-server:3306 username@mysql-server

从你的 spring boot 应用程序中，你连接到 localhost:3306，它被转发到端口 3306 上的 mysql-server.

From within you spring boot application, you do a connect to localhost:3306 which is forwarded to the mysql-server on port 3306.

直接在 spring boot 中执行此操作，您应该使用 Java 安全通道.此处描述了端口转发的示例.

Doing it directly inside spring boot, you should go with Java Secure Channel. An example for port forwarding is described here.