Spring boot启动错误

Question

当我尝试运行spring boot应用程序时，我得到了以下错误

starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled. 2018-05-03 10:50:09.457 ERROR 4909 --- [           main] o.s.b.d.LoggingFailureAnalysisReporter   : 

*************************** APPLICATION FAILED TO START
***************************

Description:

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

Reason: Failed to determine a suitable driver class


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).

Answer 1

如果您想要使用非嵌入式数据源，上述答案是正确的。如果要使用嵌入式数据源，则只需向pom.xml添加以下依赖项

<dependency>
    <groupId>com.h2database</groupId>
    <artifactId>h2</artifactId>
    <scope>runtime</scope>
</dependency>

如果您想在测试中使用嵌入式数据源，那么将作用域更改为test而不是runtime。

Answer 2

如果您希望自动配置数据源，请将配置详细信息放在application.properties文件中。如下所示(MySQL的配置)

spring.datasource.url=jdbc:mysql://localhost/test
spring.datasource.username=dbuser
spring.datasource.password=dbpass
spring.datasource.driver-class-name=com.mysql.jdbc.Driver