SpringCloud搭建项目遇到的问题

mybatis+postgresql+jpa搭建项目

使用RestTemplate调用API

1.报错：

Error starting ApplicationContext. To display the auto-configuration report re-run your application with 'debug' enabled.
2020-12-28 22:55:14.693 ERROR 5072 --- [           main] o.s.b.d.LoggingFailureAnalysisReporter   : 

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APPLICATION FAILED TO START
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Description:

Cannot determine embedded database driver class for database type NONE

Action:

If you want an embedded database please put a supported one on the classpath. If you have database settings to be loaded from a particular profile you may need to active it (no profiles are currently active).

2.问题代码

 

3，解决方法，

　　方案1：在启动类的注解加上exclude={DataSourceAutoConfiguration.class,HibernateJpaAutoConfiguration.class}

　　方案2：在pom文件中加入database的包

 4.原因：

spring boot默认会加载
org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration

类，DataSourceAutoConfiguration类使用了@Configuration注解向spring注入了dataSource bean。因为工程中没有关于dataSource相关的配置信息，当spring创建dataSource bean因缺少相关的信息就会报错