SpringBoot项目运行报错：Failed to confi

启动项目的时候报错：Failed to configure a DataSource: ‘url‘ attribute is not specified

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APPLICATION FAILED TO START
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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).


Process finished with exit code 1

• 情况一：配置文件没有激活
  解决办法：pom文件添加下面内容

    <build>
        <resources>
            <resource>
                <directory>src/main/resources</directory>
                <includes>
                    <include>**/*.yml</include>
                    <include>**/*.properties</include>
                </includes>
            </resource>
        </resources>
    </build>

• 情况二：项目不需要数据库模块
  解决方案：在启动类的注解中添加(exclude = {DataSourceAutoConfiguration.class})

@SpringBootApplication(exclude = {DataSourceAutoConfiguration.class})
public class XXXApplication {
    public static void main(String[] args) {
        SpringApplication.run(XXXApplication.class, args);
    }
}