Hoe meerdere mongodb-databases te gebruiken in de lente-opstarttoepassing?

Volg de onderstaande stappen om meerdere mongodb-gegevensbronnen in te stellen.

1. Definieer uw primaire en secundaire mongodb-eigenschappen zoals hieronder in application.properties, vervang ze alstublieft door uw db-gegevens:

   ######Primary Mongo DB########################
   spring.data.mongodb.host=localhost
   spring.data.mongodb.database=primary
   spring.data.mongodb.port=27017
   spring.data.mongodb.password=*******
   spring.data.mongodb.username=*******
   
   ###########Secondary MongoDB#####################
   mongodb.host=localhost
   mongodb.port=27017
   mongodb.database=secondary
   mongodb.username=******
   mongodb.password=******
   

2. Voeg nu meerdere Mongo Db-configuratie toe.

   @Configuration
   public class MultipleMongoConfig {
   
   @Primary
   @Bean(name = "primary")
   @ConfigurationProperties(prefix = "spring.data.mongodb")
   public MongoProperties getPrimary() {
       return new MongoProperties();
   }
   
   @Bean(name = "secondary")
   @ConfigurationProperties(prefix = "mongodb")
   public MongoProperties getSecondary() {
       return new MongoProperties();
   }
   
   @Primary
   @Bean(name = "primaryMongoTemplate")
   public MongoTemplate primaryMongoTemplate() throws Exception {
       return new MongoTemplate(primaryFactory(getPrimary()));
   }
   
   @Bean(name = "secondaryMongoTemplate")
   public MongoTemplate secondaryMongoTemplate() throws Exception {
       return new MongoTemplate(secondaryFactory(getSecondary()));
   }
   
   @Bean
   @Primary
   public MongoDbFactory primaryFactory(final MongoProperties mongo) throws Exception {
       return new SimpleMongoDbFactory(new MongoClient(mongo.getHost(), mongo.getPort()),
               mongo.getDatabase());
   }
   
   @Bean
   public MongoDbFactory secondaryFactory(final MongoProperties mongo) throws Exception {
       return new SimpleMongoDbFactory(new MongoClient(mongo.getHost(), mongo.getPort()),
               mongo.getDatabase());
   }
   

   }

3. Schakel nu EnableMongoRepositories in voor uw primaire een secundaire.Zorg ervoor dat u basePackages = "com.example.springbootmultipledatasource.primary.repository" wijzigt uw repository-pakket hier

   @Configuration
   @EnableMongoRepositories(basePackages = 
   "com.example.springbootmultipledatasource.primary.repository",
       mongoTemplateRef = "primaryMongoTemplate")
    public class PrimaryMongoConfig {
   
    }
   

Secundaire Mongo-sjabloon:zorg ervoor dat u uw secundaire repository-pakket hier wijzigt basePackages = "com.example.springbootmultipledatasource.secondary.repository

    @Configuration
    @EnableMongoRepositories(basePackages = "com.example.springbootmultipledatasource.secondary.repository",
        mongoTemplateRef = "secondaryMongoTemplate")
   public class SecondaryMongoConfig {
   }

Nu kunt u uw document, repository, service, controller maken en u bent klaar om te gaan. Hieronder is mijn projectstructuur die u kunt maken of die u anders kunt hebben.