java - 在 Spring Boot 中使用两个数据源

Question

我按照 https://docs.spring.io/spring-boot/docs/current/reference/html/howto.html#howto-two-datasources 上的文档进行操作并相应地创建了我的源代码。当我启动应用程序时，我收到此错误消息:

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APPLICATION FAILED TO START

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Description:

Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured.

Reason: Failed to determine suitable jdbc url

Action: Consider the following: If you want an embedded database (H2, HSQL or Derby), please put it on the classpath. If you have database settings to be loaded from a particular profile you may need to activate it (no profiles are currently active).

我搜索了类似的问题，只发现了一个: Error access two datasource with Spring Boot

Answer 1

错误消息中包含了此问题的解决方案，但(至少对我来说)有点太隐藏了。

我忘记添加 h2 jar，所以真正的原因不是 Spring Boot 无法确定合适的 jdbc url，而是缺少驱动程序。