STSがアプリケーションの起動に失敗しているようです。  
コンソールにエラーメッセージが表示されます。  
もしかしたら、DB周りのメッセージが出ているようなんですが。

```

      .   ____          _            __ _ _
     /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
    ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
     \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
      '  |____| .__|_| |_|_| |_\__, | / / / /
     =========|_|==============|___/=/_/_/_/
     :: Spring Boot ::        (v2.1.3.RELEASE)
    
    2020-06-04 11:54:28.474  INFO 8328 --- [  restartedMain] jp.co.sss.shop.ShopApplication           : Starting ShopApplication on DESKTOP-49K9SE0 with PID 8328 (C:\Users\edu\Documents\workspace-spring-tool-suite-4-4.0.0.RELEASE\shop\target\classes started by edu in C:\Users\edu\Documents\workspace-spring-tool-suite-4-4.0.0.RELEASE\shop)
    2020-06-04 11:54:28.477  INFO 8328 --- [  restartedMain] jp.co.sss.shop.ShopApplication           : No active profile set, falling back to default profiles: default
    2020-06-04 11:54:28.536  INFO 8328 --- [  restartedMain] .e.DevToolsPropertyDefaultsPostProcessor : Devtools property defaults active! Set 'spring.devtools.add-properties' to 'false' to disable
    2020-06-04 11:54:28.536  INFO 8328 --- [  restartedMain] .e.DevToolsPropertyDefaultsPostProcessor : For additional web related logging consider setting the 'logging.level.web' property to 'DEBUG'
    2020-06-04 11:54:29.675  INFO 8328 --- [  restartedMain] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data repositories in DEFAULT mode.
    2020-06-04 11:54:29.765  INFO 8328 --- [  restartedMain] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 81ms. Found 1 repository interfaces.
    2020-06-04 11:54:30.262  INFO 8328 --- [  restartedMain] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration' of type [org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration$$EnhancerBySpringCGLIB$$b9dc8257] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
    2020-06-04 11:54:30.749  INFO 8328 --- [  restartedMain] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat initialized with port(s): 8080 (http)
    2020-06-04 11:54:30.777  INFO 8328 --- [  restartedMain] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
    2020-06-04 11:54:30.777  INFO 8328 --- [  restartedMain] org.apache.catalina.core.StandardEngine  : Starting Servlet engine: [Apache Tomcat/9.0.16]
    2020-06-04 11:54:30.787  INFO 8328 --- [  restartedMain] o.a.catalina.core.AprLifecycleListener   : The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: [C:\Program Files\Java\jdk1.8.0_111\bin;C:\WINDOWS\Sun\Java\bin;C:\WINDOWS\system32;C:\WINDOWS;C:/Program Files/Java/jre1.8.0_111/bin/server;C:/Program Files/Java/jre1.8.0_111/bin;C:/Program Files/Java/jre1.8.0_111/lib/amd64;C:\oraclexe\app\oracle\product\11.2.0\server\bin;C:\ProgramData\Oracle\Java\javapath;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\WINDOWS\System32\OpenSSH\;C:\Program Files\Java\jdk1.8.0_111\bin;C:\Program Files\Java\jdk1.8.0_111\bin;C:\Users\edu\AppData\Local\Microsoft\WindowsApps;;C:\sts-4.0.0.RELEASE;;.]
    2020-06-04 11:54:30.940  INFO 8328 --- [  restartedMain] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
    2020-06-04 11:54:30.941  INFO 8328 --- [  restartedMain] o.s.web.context.ContextLoader            : Root WebApplicationContext: initialization completed in 2405 ms
    2020-06-04 11:54:31.036  WARN 8328 --- [  restartedMain] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'inMemoryDatabaseShutdownExecutor' defined in class path resource [org/springframework/boot/devtools/autoconfigure/DevToolsDataSourceAutoConfiguration.class]: Unsatisfied dependency expressed through method 'inMemoryDatabaseShutdownExecutor' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in class path resource [org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration$Hikari.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.zaxxer.hikari.HikariDataSource]: Factory method 'dataSource' threw exception; nested exception is org.springframework.boot.autoconfigure.jdbc.DataSourceProperties$DataSourceBeanCreationException: Failed to determine a suitable driver class
    2020-06-04 11:54:31.042  INFO 8328 --- [  restartedMain] o.apache.catalina.core.StandardService   : Stopping service [Tomcat]
    2020-06-04 11:54:31.101  INFO 8328 --- [  restartedMain] ConditionEvaluationReportLoggingListener : 
    
    Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
    2020-06-04 11:54:31.110 ERROR 8328 --- [  restartedMain] 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).
    
```
CC BY-SA 4.0
2020-06-04T05:20:15.233
67277
2022-05-14T14:05:20.510
2020-06-04T05:46:30.733
3060
40435
question
java eclipse spring maven oracle
STSでのアプリケーションの起動に失敗する
`Failed to configure a DataSource: 'url' attribute is not specified and no
embedded datasource could be configured.`  
エラーメッセージに原因がかかれているので、その内容通り、設定不足ではないかと思われます。  
設定ファイル(application.propertiesなど)に正しいDBアクセスの定義がされているか確認してみてください。

また、[同様の質問](https://ja.stackoverflow.com/questions/48348/spring-
boot%E3%81%AE%E8%B5%B7%E5%8B%95%E3%82%A8%E3%83%A9%E3%83%BCdb%E3%82%A2%E3%82%AF%E3%82%BB%E3%82%B9%E3%81%AB%E5%A4%B1%E6%95%97%E3%81%8B)がすでにされているので、こちらも合わせて確認してみてください。
CC BY-SA 4.0
2020-06-04T06:32:57.100
67278
2020-06-04T06:32:57.100
40136
67277
answer