新建springboot项目启动出错 Failed to configure a DataSource: 'url' attribute is not specified and no embedde

约定不等于承诺〃 2022-05-22 11:23 188阅读 0赞

错误信息入下：

复制代码  
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).  
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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。

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@SpringBootApplication(exclude = DataSourceAutoConfiguration.class)  
public class BdservoApplication \{

public static void main(String[] args) {  
        SpringApplication.run(BdservoApplication.class, args);  
    }

\}  
复制代码

新建springboot项目启动出错 Failed to configure a DataSource: 'url' attribute is not specified and no embedde

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