spring.datasource.url=jdbc:mysql://localhost:3306/your_database_name 1. 在这个URL中,将your_database_name替换为实际要连接的数据库名称。这样就可以解决"No database selected"的问题。 示例代码 下面是一个使用Spring Boot连接MySQL数据库的示例代码: importorg.springframework.beans.factory.annotation.Autowir...
然而,如果在应用程序启动时出现 “NO database selected” 错误提示,意味着无法成功连接到数据库。 错误原因 1. 数据库选择错误 这个错误提示通常出现在应用程序配置中缺少或错误地配置了数据库连接信息的情况下。Spring Boot 默认使用的是 H2 数据库,如果没有正确配置其他数据库连接信息,就会出现 “NO database sel...
After updating my project from Spring Boot Version 3.2.0 to 3.2.1, I am no longer able to start my application. My application uses Spring JPA (via spring-boot-starter-data-jpa) and a MySQL 8.2 database. During start-up, I receive the following error message: [ERROR] 2023-12-22 10:...
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NO - Norway ID Title Functional Area Changed Objects 436537 Non Deductible VAT is added to the VAT statement even if the Incl. Non-Deductible VAT option is selected in the Norwegian version. Finance REP 12 R...
The null label appears as (No Label) in the Azure portal. You can configure the configurations that are loaded by selecting different key and label filters, as shown in the following example: properties Cóipeáil spring.cloud.azure.appconfiguration.stores[0].selects[0].key-filter=[my-key...
1.只有用Connector/NET 出现这个问题， 用JDBC驱动没有类似问题。 2.多...
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Identificeer de verbindingsreeks voor elke SQL database.Voor een Spring Boot-toepassing vindt u de verbindingsreeksen meestal in configuratiebestanden.Hier volgt een voorbeeld van een application.properties-bestand:properties Kopiëren spring.datasource.url=jdbc:mysql://localhost:3306/mysql_db...
在使用Spring和SpringMVC的老版本进行开发时，我们需要配置很多的xml文件，非常的繁琐，总是让用户自行选择...