使用 Spring Data Mongo 配置多个 MongoDB 存储库 [英] Configure Multiple MongoDB repositories with Spring Data Mongo
问题描述
我有 2 个 Mongodb 数据库连接到带有 2 个 MongoTemplate-s 的 Spring Boot 应用程序:
I have 2 Mongodb databases connected to a Spring Boot app with 2 MongoTemplate-s:
mongoTemplate(默认 bean 名称,连接到默认数据库)
mongoTemplate (the default bean name, connects to default db)
mongoAppTemplate(在运行时连接到另一个数据库)
mongoAppTemplate (connects to another database on run-time)
我有很多使用 mongoTemplate 的 MongoRepository-s,但我也想创建一些使用 mongoAppTemplate 的.
I have a lot of MongoRepository-s that use mongoTemplate but I also want to create some that would use mongoAppTemplate.
如何配置 2 个 MongoRepository-s 以使用不同的 MongoTemplate -s 和 Java 配置?
我找到了一种使用 XML 的方法(下面的链接),但我真的想保留所有基于注释的内容
I found a way to do it with XML (link below), but I really want to keep it all annotation based
Spring-data-mongodb 在一个 Mongo 实例中连接多个数据库
推荐答案
基本思想是将包含您的存储库的包层次结构分成两个不同的路径:
The base idea is to separate the package hierarchy that contains your repositories into two different paths:
- com.whatever.repositories.main 用于主数据库存储库接口的包
- com.whatever.repositories.secondary 其他数据库存储库接口的包
- com.whatever.repositories.main package for the main db repository interfaces
- com.whatever.repositories.secondary package for the other db repository interfaces
您的 XML 配置应该是这样的:
Your XML configuration should be something such as:
<mongo:repositories base-package="com.whatever.repositories.main" mongo-template-ref="mongoTemplate"/>
<mongo:repositories base-package="com.whatever.repositories.secondary" mongo-template-ref="mongoAppTemplate"/>
编辑
@EnableMongoRepositories 注释不是 @Repeatable
,但是你可以有两个 @Configuration
类,每个类都用 @EnableMongoRepositories
注释> 为了使用注释实现相同的目的:
@EnableMongoRepositories annotation is not @Repeatable
, but you can have two @Configuration
classes, each annotated with @EnableMongoRepositories
in order to achieve the same using annotations:
@Configuration
@EnableMongoRepositories(basePackages = "com.whatever.repositories.main", mongoTemplateRef = "mongoTemplate")
public class MainMongoConfig {
....
}
@Configuration
@EnableMongoRepositories(basePackages = "com.whatever.repositories.secondary", mongoTemplateRef = "mongoAppTemplate")
public class SecondaryMongoConfig {
....
}
和第三个 @Configuration
注释类,其中 @Import
其他两个.
And a third @Configuration
annotated class which @Import
the other two.
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