how to use a post method with a spring data rest process?

Question

I'm using a repostiroy rest resource service and currently I need to implement a method to import the data from a excel file into my database. I don't see how I can do with spring repository rest resource? since it's an interface. do I use restController or does it have a way to do both?

Answer 1

The standard flow would be:

1. Create a repository file

   @Repository
   public interface RepositoryClass extends JpaRepository<T, ID>{}
   

• where T is the class and ID is the data type of the ID (ex: Long, Integer etc.)

The JpaRepository already have save() and saveAll() methods(1)

2. In service create a method that read the data and saves it in the database

   @Service
   public class ServiceClass{
   
   // ...some code
   
      public void importData(// ... parameters){
           // open the excel file and import the data in an ArrayList for exemple
   
           repositoryClass.saveAll(arrayWithData);
      }
   }
   

3. The last step is to create a endpoint in the controller which calls the method that is written in service.