spring boot启动报错Error starting ApplicationContext(未能配置数据源)

主要错误:Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured. 未能配置数据源:未指定“url”属性,也无法配置嵌入式数据源...

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

未能配置数据源:未指定“url”属性,也无法配置嵌入式数据源。

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2019-06-03 09:47:45.300 ERROR 23160 --- [           main] o.s.b.d.LoggingFailureAnalysisReporter   : 
 
***************************
APPLICATION FAILED TO START
***************************
 
Description:
 
Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be 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).

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。

两种解决办法 

1.在Application类上加

@EnableAutoConfiguration(exclude={DataSourceAutoConfiguration.class})

2.配置数据源:

例如在application配置文件中:

spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql://ip:端口号/数据库名称?useSSL=false&useUnicode=true&characterEncoding=utf8&serverTimezone=GMT%2B8

  • 发表于 2019-06-05 16:20
  • 阅读 ( 176 )
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