You haven’t provided Spring Boot with enough information to auto-configure a DataSource. To do so, you’ll need to add some properties to application.properties with the spring.datasource prefix. Take a look at DataSourceProperties to see all of the properties that you can set. You’ll need to provide the appropriate url and driver class name:
What a mess. I don’t remember where I found this but I had to add the following to get M2Eclipse to be happy. Even more sad is that it isn’t exactly easy to understand why this tag is needed. There were a number of other issues with the M2Eclipse plug-in that simply didn’t work with … Read more
The EntityManager doesn’t flush change automatically by default. You should use the following option with your statement of query:
JpaRepository extends PagingAndSortingRepository which in turn extends CrudRepository. Their main functions are: CrudRepository mainly provides CRUD functions. PagingAndSortingRepository provides methods to do pagination and sorting records. JpaRepository provides some JPA-related methods such as flushing the persistence context and deleting records in a batch. Because of the inheritance mentioned above, JpaRepository will have all the functions of CrudRepository and PagingAndSortingRepository. So if you don’t need the repository to … Read more