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#Unmapped spring configuration files found. full
#Unmapped spring configuration files found. code

#Unmapped spring configuration files found. code

The following code shows the bean definitions of our data sources. The data source builder object uses the database properties found in the application.properties file to create a data source object. We are going to use this DataSourceProperties object to get a data source builder object. To create a data source bean we need to instantiate the .jdbc.DataSourceProperties class using the data source key specified in the application.properties file. Spring Data JPA Repository custom settings.Here are the data source configuration steps. In this example, we will mark the member data source as our primary data source. It is important to note that during the configuration of multiple data sources, one data source instance must be marked as the primary data source.Įlse the application will fail to start-up because Spring will detect more than one data source of the same type. #expiration date (card id, expiration month, expiration year)Īpp.=jdbc:mysql://localhost:3306/carddb?createDatabaseIfNotExist=trueĪpp.=.jdbc.Driver #Store card holder personal detailsĪpp.=jdbc:mysql://localhost:3306/memberdb?createDatabaseIfNotExist=trueĪpp.=.jdbc.DriverĪpp.=jdbc:mysql://localhost:3306/cardholderdb?createDatabaseIfNotExist=trueĪpp.=.jdbc.Driver Here is the code of the application.properties file.

Since we are configuring three data sources we need three sets of configurations in the application.propertiesfile.

.MemberDataSourceConfigurationĮach data source configuration file will contain its data source bean definition including the entity manager and transaction manager bean definitions.

We have also created Java configuration files for each of our data sources: This packaging strategy also applies to the JPA repositories.Īs you can see above, we have defined a unique package for each of the models and repositories. The data models or entities belonging to a certain datastore must be placed in their unique packages. The project packaging structure is very important when dealing with multiple data sources. To support MySQL, our classpath must include the MySQL database connector dependency. This article is not a security recommendation. NOTE: This scenario is for an example of using multiple data sources with Spring Boot. Since we are spreading the credit card data across three databases, all three would need to be compromised for a security risk.

#Unmapped spring configuration files found. full

Card database(carddb): Stores the credit card information which includes the owner’s full name and the credit card expiration date.Cardholder database(cardholderdb): Stores cardholder details which include the member id and credit card number.Member database(memberdb): Stores personal details of cardholders which include their full name and member id.The credit card scenario described above, will use the following three databases: We will use MySQL for our database server. In this article, we will configure multiple data sources in Spring Boot and JPA. If one of the data sources is compromised the data retrieved is useless without the data from other data sources. You may wish to store the data elements in multiple data sources. Sometimes, this is for security reasons.Īn example of this is the storage of credit card information. Often, you will need to connect to more than one data source.