Debug - SpringBoot - Error starting ApplicationContext. To display the auto-configuration report re-runyour application

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• Error log
• Solution

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Error log

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2019-12-07 22:33:03.959 ERROR 3760 --- [           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

 

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Solution

在SpringBootApplication后加（exclude=DataSourceAutoConfiguration.class）,原因是加载了数据库依赖而没有写配置文件

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/**  * starter of spring boot  */ @SpringBootApplication(exclude=DataSourceAutoConfiguration.class) public class DemoApplication {       public static void main(String[] args) {         SpringApplication.run(DemoApplication.class, args);     }   }