If more than one service project uses a configuration, when we modify the configuration information, we want to configure services also followed changes, but we have to send a POST a service request http: // xxx: xxx / bus / refresh, or shut down the service back on. This is more troublesome. So here we are using messaging middleware to complete the update configuration issues.
Figure:
Spring Cloud Bus Interface provides an http outwardly, i.e. in the drawing / actuator / bus-refresh. We will configure this interface to the remote git, when the contents of the file on git changed, it will automatically call / bus-refresh interface. Bus will notify config-server, config-server will release an update message to the message queue, the message to other subscription services will be refreshed in order to achieve the overall micro service automatically refreshed.
