First, determine the name of the database you need, combined with the jeecg project, I learned in the project that the name of the database I need to link is jeecg-boot
Open the visualization software of the database,
Click Start to import, refresh the database, and you can see the imported data table.
Next link MySQL in idea
Click OK to complete the configuration, refresh it, and you can see the data table.
Change the database name and password to your own in the code to complete the database connection.
Let's set up the configuration of redis. I don't know much about it yet, and it's also from Baidu.
I won't go into details.