public JdbcTemplate jdbcTemplate(DataSource dsItems) { return new JdbcTemplate(dsItems); } } DatabaseUsersConfig.java package sb; import org.springframework.boot.autoconfigure.jdbc.TomcatDataSourceConfiguration;
# User Databasespring.datasource.url=jdbc:h2:mem:userspring.datasource.username=saspring.datasource.password=password# Order Databasespring.datasource.order.url=jdbc:h2:mem:orderspring.datasource.order.username=saspring.datasource.order.password=passwordspring.h2.console.enabled=truespring.jpa.generate...
首先代码工程结构如下: org.spring.springboot.config.datasource 包含了多数据源的配置,同样有第三个数据源,按照前几个复制即可;resources/mapper目录下面有两个模块,分别是 Mybatis 不同数据源需要扫描的mapper.xml 目录。 ├── pom.xml └── src └── main ├── java │ └── com │ ...
Spring-Boot's auto-configurer seems good for simple applications. For example it automatically creates DataSource and JdbcTemplate, when you need to connect to the database. But what about less trivial configuration, when you have several different databases? I found the way to have multiple Dat...
Learn how to configure a Spring Boot DataSource programmatically, thereby side-stepping Spring Boot's automatic DataSource configuration algorithm. Read more→ 2. The Entities First, let’s create two simple entities, with each living in a separate database. ...
在Spring Boot应用程序中,@SpringBootConfiguration注解用于标识主配置类。当应用程序启动时,Spring Boot会查找带有此注解的类,并使用它来加载应用程序的配置。但是,如果在应用程序中存在多个带有@SpringBootConfiguration注解的类,就会导致“Found multiple @SpringBootConfiguration annotated classes”错误。这个错误通常发生在...
Let’s assume that we have a song lyrics service that allows users to submit lyrics of songs using a REST endpoint. The service has two tables,songsandlyrics. Due to poor design, each of them resides in a different database. Thesongstable is in a MySQL 8 server, whereas thelyricstable...
最近启动springboot项目的时候,发现有一条日志:Multiple Spring Data modules found, entering strict repository configuration mode!,该日志虽然是INFO级别的,但强迫症看着实在是太难受了。所以花了一些时间去解决这个问题。这条日志的大概意思是,springboot发现了多个repository,为了代码的健壮性,自动进入严格配置模式。啥...
最近启动springboot项目的时候,发现有一条日志:Multiple Spring Data modules found, entering strict repository configuration mode!,该日志虽然是INFO级别的,但强迫症看着实在是太难受了。所以花了一些时间去解决这个问题。这条日志的大概意思是,springboot发现了多个repository,为了代码的健壮性,自动进入...
在spring boot中absractRoutingDataSource类可以用来实现数据库的动态切换,而在很多业务场景也确实需要进行数据源切换 数据库读写分离,查询操作在读库上,而增删改在写库上,能够极大的提高数据库并发性能 业务在数据库级别的解构,微服务架构下,每个独立的服务,都有自己的数据库,然后很多时候,业务会涉及多个多个数据库 ...