## 遇到的问题及对应的解决方案

### 2022.10

#### 2022.10.21 项目创建后启动失败，提示：Failed to configure a DataSource: ‘url’ attribute is not specified and no embedded datasource could be configured.

```bash
***************************
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).
```

解决方案：

application.properties 配置文件中添加数据库配置

```bash
# MySQL配置
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.url=jdbc:mysql://127.0.0.1:3306/epp?useUnicode=true&characterEncoding=utf8&useSSL=false
spring.datasource.username=root
spring.datasource.password=root
```