In any Bank Transaction, there are several parties involved to process transaction like a merchant, bank, receiver, etc. so there are several numbers reasons that transaction may get failed, declined, ...

Respected @wilkinsona, It was great to work with the Springboot framework but as I am migrating the spring MVC project to spring-boot and as in spring-boot JDBC MySQL is defined in the application.

Store data in a MySQL database table named BOOKS. A Java class named Book has properties that map to columns in the table. Use Spring JPA annotations to describe the Java-to-MySQL mappings. Hibernate ...