轉載請注明出處：
https://www.cnblogs.com/Xi-Chen00/p/12619072.html
最近在復習mybatis知識的時候，遇到這個異常：
Exception in thread "main" org.apache.ibatis.exceptions.PersistenceException:
### Error building SqlSession.
### The error may exist in com/spring/repository/AccountRepository.xml
### Cause: org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: java.io.IOException: Could not find resource com/spring/repository/AccountRepository.xml
at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:30)
at org.apache.ibatis.session.SqlSessionFactoryBuilder.build(SqlSessionFactoryBuilder.java:80)
at org.apache.ibatis.session.SqlSessionFactoryBuilder.build(SqlSessionFactoryBuilder.java:64)
at com.spring.test.Test.main(Test.java:21)
Caused by: org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: java.io.IOException: Could not find resource com/spring/repository/AccountRepository.xml
at org.apache.ibatis.builder.xml.XMLConfigBuilder.parseConfiguration(XMLConfigBuilder.java:121)
at org.apache.ibatis.builder.xml.XMLConfigBuilder.parse(XMLConfigBuilder.java:98)
at org.apache.ibatis.session.SqlSessionFactoryBuilder.build(SqlSessionFactoryBuilder.java:78)
... 2 more
Caused by: java.io.IOException: Could not find resource com/spring/repository/AccountRepository.xml
at org.apache.ibatis.io.Resources.getResourceAsStream(Resources.java:114)
at org.apache.ibatis.io.Resources.getResourceAsStream(Resources.java:100)
at org.apache.ibatis.builder.xml.XMLConfigBuilder.mapperElement(XMLConfigBuilder.java:371)
at org.apache.ibatis.builder.xml.XMLConfigBuilder.parseConfiguration(XMLConfigBuilder.java:119)
... 4 more
Process finished with exit code 1
檢查運行類配置文件名，確定沒錯：
檢查mybatis的配置文件，注冊的xml的路徑確定沒寫錯（路徑用/，有.xml后綴）：
檢查了.xml映射的namespace，確定也沒寫錯（路徑用. , 沒有后綴）：
無論反復檢查代碼，也導入了mybatis依賴。最后想了一下，找不到文件是不是因為maven工程沒有掃描到xml文件？（這點還是容易被忽略的，maven默認掃描resource目錄）
在pom的build中添加掃描java目錄下xml文件的依賴就成功了：
<resources>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.xml</include>
</includes>
</resource>
</resources>