方法一.將mapper.xml文件放在resources下
(1)在yml里面配置mapper文件的路徑
mybatis:
? ? ?type-aliases-package: com.entity
? ? ?mapper-locations: classpath:mapper/*.xml
(2)在啟動類里面添加mapper類的掃描包
@SpringBootApplication
@MapperScan("com.mapper")
public class PlanApplication {}
方法二.mapper.xml在src/main/java下
（1）在pom.xml文件里面配置資源文件加載路徑
<build>
<resources>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.properties</include>
<include>**/*.xml</include>
</includes>
<filtering>false</filtering>
</resource>
</resources>
</build>
(2)在yml里面配置實體類的別名
mybatis:
? ? ?type-aliases-package: com.entity
(3)在啟動類里面添加mapper類的掃描包
@SpringBootApplication
@MapperScan("com.mapper")
public class PlanApplication {}
