1. How to import sql file
Using the built-in pgAdmin will not operate, which is troublesome. It is recommended to use navicat for price comparison, but there is a problem with navicat12 is that navicat12 can only support the import of sql files, and cannot view the table structure.
2. View the table structure, and add data, use the database plug-in in idea, Database plug-in
3.jdbc configuration problem
View your own jdbc user name and password and interface details, and open SQL Shell
4. Problems with jdbc configuration
Pay attention to comparing some of the content that has been annotated below, which is where the problem occurs.