Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could

问题描述：

springboot版本 2.1.1

pom.xml配置

<dependencies>
       <dependency>
           <groupId>org.springframework.boot</groupId>
           <artifactId>spring-boot-starter-web</artifactId>
       </dependency>
       <dependency>
           <groupId>org.springframework.boot</groupId>
           <artifactId>spring-boot-starter-jdbc</artifactId>
       </dependency>

       <dependency>
           <groupId>mysql</groupId>
           <artifactId>mysql-connector-java</artifactId>
       </dependency>
</dependencies>

application.properties

spring.datasource.hikari.jdbc-url=jdbc:mysql://127.0.0.1:3306/bootdb?serverTimezone=GMT%2B8&useUnicode=true&&characterEncoding=UTF-8
spring.datasource.hikari.username=root
spring.datasource.hikari.password=123456
spring.datasource.hikari.driver-class-name=com.mysql.jdbc.Driver

在配置数据连接的时候报如下错误：

> Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could 

这是因为引入的spring-boot-starter-jdbc但是没有配置spring.datasource.url等信息报错的。（在我的application.properties中采用的hikari作为数据库连接）

解决办法：

第一种：

将配置信息改为：

#spring.datasource.url=jdbc:mysql://127.0.0.1:3306/bootdb?serverTimezone=GMT%2B8&useUnicode=true&&characterEncoding=UTF-8
#spring.datasource.type=com.zaxxer.hikari.HikariDataSource
#spring.datasource.username=root
#spring.datasource.password=123456

第二种：(去掉DataSourceAutoConfiguration的自动配置)

@SpringBootApplication(exclude = DataSourceAutoConfiguration.class)
public class NewCodingStandardsUserApplication {

    public static void main(String[] args) {
        SpringApplication.run(NewCodingStandardsUserApplication.class, args);
    }

}

     

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