無法配置數據源：未指定“url”屬性，并且無法配置嵌入數據源。大家好，當我在 intelij 中運行應用程序嘗試連接到 mysql 時，出現以下錯誤2019-09-27 13:26:52.644 WARN 1084 --- [ 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 class2019-09-27 13:26:52.648 INFO 1084 --- [ restartedMain] o.apache.catalina.core.StandardService : Stopping service [Tomcat]2019-09-27 13:26:52.671 INFO 1084 --- [ restartedMain] ConditionEvaluationReportLoggingListener : Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.2019-09-27 13:26:52.674 ERROR 1084 --- [ 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
3 回答
有只小跳蛙
TA貢獻1824條經驗 獲得超8個贊
因此，經過深思熟慮，我決定查看一下我的資源文件夾和 application.properties 文件，結果發現資源目錄沒有標記為資源根目錄，右鍵單擊資源文件夾目錄，將鼠標懸停在“標記目錄”上as并選擇資源根?
抱歉浪費了大家的時間，感謝您的所有幫助，因為我確實使用了提到的一些配置
哈士奇WWW
TA貢獻1799條經驗 獲得超6個贊
看起來像依賴性問題嘗試指定驅動程序的版本：
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.17</version>
</dependency>
弒天下
TA貢獻1818條經驗 獲得超8個贊
您好，在您的財產文件上設置：
spring.datasource.url=jdbc:mysql://localhost:3306/invoice
spring.datasource.username=root
spring.datasource.password=password
spring.datasource.driverClassName=com.mysql.cj.jdbc.Driver
在你的 pom.xml 上
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.7.RELEASE</version>
<relativePath/>
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<!-- ... -->
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<mainClass>yourpackage.YourInitialApp</mainClass>
</configuration>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
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