关于spring:Failed-to-determine-a-suitable-driver-class

Failed to determine a suitable driver class

启动就报这个谬误：

Description:

Failed to auto-configure a DataSource: 'spring.datasource.url' is not specified and no embedded datasource could be auto-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)

看字面意思是没找到数据源。网上说是在利用中没有用到数据源然而增加了 mybatis 的依赖：

<dependency>
    <groupId>com.baomidou</groupId>
    <artifactId>mybatis-plus-boot-starter</artifactId>
</dependency>

很惋惜我不是这种状况，我的这个模块是服务模块，外面用到 mybatis-plus 的相干包，而且 application.yml 文件中也配置了数据源失常：

datasource:
  driver-class-name: com.mysql.cj.jdbc.Driver
  username: root
  password: 123456
  url: jdbc:mysql://localhost:3306/seckill?serverTimezone=GMT%2B8

说什么要在启动类下面排除数据源的主动注入：

@SpringBootApplication(exclude = DataSourceAutoConfiguration.class)// 去掉数据源 

而后就报这个错：

Property 'sqlSessionFactory' or 'sqlSessionTemplate' are required

而后竟然让写一个根底 dao：

可能是为了解决多数据源的问题吧，勾销了主动注入。没用到多数据源，不太关怀这个。

解决方案：因为咱们 dao 层是继承于一个 dao 基类，所以只有在这个基类中注入任意一个属性即可。SqlSessionFactory 在 spring 配置文件中曾经配置。

public class CommonDao extends SqlSessionDaoSupport {
     @Resource
     public void setSqlSessionFactory(SqlSessionFactory sqlSessionFactory){super.setSqlSessionFactory(sqlSessionFactory);
     }
}

而后我所有的 mapper 都要继承这个。。。

果决放弃，最终找到如下计划。

解决办法

亲测无效，在 pom.xml 文件增加如下：

<build>
    <resources>
        <resource>
            <directory>src/main/java</directory>
            <includes>
                <include>**/*.yml</include>
                <include>**/*.properties</include>
                <include>**/*.xml</include>
            </includes>
            <filtering>false</filtering>
        </resource>
        <resource>
            <directory>src/main/resources</directory>
            <includes>
                <include>**/*.yml</include>
                <include>**/*.properties</include>
                <include>**/*.xml</include>
            </includes>
            <filtering>false</filtering>
        </resource>
    </resources>
</build>