?報錯信息：

*************************** 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 classAction: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).

發現問題：

啟動項目-->Build項目-->報錯無法啟動-->發現問題

1、target下目錄完好

2、在target下無配置文件

解決問題：

針對target下目錄完好情況：

檢查配置文件如application.properties中spring.datasource.url等配置項是否正確配置

在target下無配置文件：

1、更新maven，rebuild項目

2、右鍵resources目錄-->Make Directory as Resources Root，rebuild項目

3、檢查pom.xml中是否有不當配置并修改更新

4、pom.xml的build標簽下添加：

<resources><resource><directory>src/main/java</directory><includes><include>**/*.properties</include><include>**/*.xml</include></includes></resource><resource><directory>src/main/resources</directory><includes><include>**/*.*</include></includes></resource> </resources>

然后更新maven，rebuild項目

5、代碼拷出來重新導入

總結

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