spriing boot 启动报错：Cannot determine embedded database driver class for database type NONE

package com.torlight; 2 3 import org.springframework.boot.SpringApplication; 4 import org.springframework.boot.autoconfigure.EnableAutoConfiguration; 5 import org.springframework.boot.autoconfigure.SpringBootApplication; 6 import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration; 7 import org.springframework.context.ApplicationContext; 8 import org.springframework.context.ConfigurableApplicationContext; 9 10 11 /** 12 * @since 2017.05.06 13 * @author acer 14 * 15 */ 16 @SpringBootApplication 17 public class Application { 18 19 public static void main(String[] args) { 20 ApplicationContext appctx= SpringApplication.run(Application.class,args); 21 22 System.out.println("appctx.getBeanDefinitionCount="+appctx.getBeanDefinitionCount()); 23 try { 24 ((ConfigurableApplicationContext)appctx).close(); 25 } catch (Exception e) { /*ignore*/ } 26 } 27 }

 

运行程序后，控制台输出错误日志：

 

017-05-06 22:44:18.868 WARN 41648 --- [ restartedMain] ationConfigEmbeddedWebApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘dataSource‘ defined in class path resource [org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration$Tomcat.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.tomcat.jdbc.pool.DataSource]: Factory method ‘dataSource‘ threw exception; nested exception is org.springframework.boot.autoconfigure.jdbc.DataSourceProperties$DataSourceBeanCreationException: Cannot determine embedded database driver class for database type NONE. If you want an embedded database please put a supported one on the classpath. If you have database settings to be loaded from a particular profile you may need to active it (no profiles are currently active).
2017-05-06 22:44:18.871 INFO 41648 --- [ restartedMain] o.apache.catalina.core.StandardService : Stopping service Tomcat
2017-05-06 22:44:18.902 INFO 41648 --- [ restartedMain] utoConfigurationReportLoggingInitializer :

Error starting ApplicationContext. To display the auto-configuration report re-run your application with ‘debug‘ enabled.
2017-05-06 22:44:18.907 ERROR 41648 --- [ restartedMain] o.s.b.d.LoggingFailureAnalysisReporter :

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

Description:

Cannot determine embedded database driver class for database type NONE

Action:

If you want an embedded database please put a supported one on the classpath. If you have database settings to be loaded from a particular profile you may need to active it (no profiles are currently active).

这是因为spring boot默认会加载org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration类，DataSourceAutoConfiguration类使用了@Configuration注解向入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。

 

因为我仅仅只是使用spring boot来写一些很简单的例子来学习它，在Application类上增加@EnableAutoConfiguration(exclude={DataSourceAutoConfiguration.class})

阻止spring boot自动注入dataSource bean

 

 1 package com.torlight;
 2 
 3 import org.springframework.boot.SpringApplication;
 4 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
 5 import org.springframework.boot.autoconfigure.SpringBootApplication;
 6 import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
 7 import org.springframework.context.ApplicationContext;
 8 import org.springframework.context.ConfigurableApplicationContext;
 9 
10 
11 /**
12  * @since 2017.05.06
13  * @author acer
14  *
15  */
16 @SpringBootApplication
17 @EnableAutoConfiguration(exclude={DataSourceAutoConfiguration.class})
18 public class Application {
19     
20     public static void main(String[] args) {
21         ApplicationContext appctx= SpringApplication.run(Application.class,args);
22         
23         System.out.println("appctx.getBeanDefinitionCount="+appctx.getBeanDefinitionCount());
24         try {
25             ((ConfigurableApplicationContext)appctx).close();
26         } catch (Exception e) { /*ignore*/ }
27     }
28 }

 

spriing boot 启动报错：Cannot determine embedded database driver class for database type NONE

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