错误信息入下：
2018-06-23 01:48:05.275 INFO 7104 --- [ main] o.apache.catalina.core.StandardService : Stopping service [Tomcat]
2018-06-23 01:48:05.355 INFO 7104 --- [ main] ConditionEvaluationReportLoggingListener : Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2018-06-23 01:48:05.358 ERROR 7104 --- [ 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).
这是因为添加了数据库组件，所以autoconfig会去读取数据源配置，而新建的项目还没有配置数据源，所以会导致异常出现。
解决办法：
1. 去掉数据库依赖
2.在启动类的@EnableAutoConfiguration或@SpringBootApplication中添加exclude = {DataSourceAutoConfiguration.class}，排除此类的autoconfig。启动以后就可以正常运行。
@SpringBootApplication(exclude = DataSourceAutoConfiguration.class)
public class BdservoApplication { public static void main(String[] args) {
SpringApplication.run(BdservoApplication.class, args);
}
}