启动程序后报错

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).

数据库的配置也没问题的

spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql://192.168.56.103/gulimall_pms?useUnicode=true&characterEncoding=utf8
spring.datasource.username=root
spring.datasource.password=root

报错原因

target 目录下没有编译后的 resources 目录下的文件

解决方案

把<packaging> pom </packaging> 删掉