多租户是指一个软件应用实例服务于多个租户或客户。它确保了租户之间所需的隔离程度，使得租户使用的数据和资源与其他租户分离。本教程将展示如何在Spring Boot应用程序中使用Spring Data JPA配置多租户，同时使用JWT为租户添加安全性。
2. 多租户模型
多租户系统主要有三种方法：
- 独立数据库
- 共享数据库和独立架构
- 共享数据库和共享架构
2.1. 独立数据库
在这种方法中，每个租户的数据保存在独立的数据库实例中，与其他租户隔离。这也被称为“每个租户一个数据库”：
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- Infer1
- doAnswer1
- thenReturn1
- 依赖树1
- 依赖图1
- Autowired1
- InjectMocks1
- 注解1