报错信息如下
代码语言：javascript复制Exception in thread "main" org.apache.ibatis.exceptions.PersistenceException:
### Error building SqlSession.
### The error may exist in com/XXXX/dao/UserDaoMapper.xml
### Cause: org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: java.io.IOException: Could not find resource com/bdqn/dao/UserDaoMapper.xml
at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:23)
at org.apache.ibatis.session.SqlSessionFactoryBuilder.build(SqlSessionFactoryBuilder.java:79)
at org.apache.ibatis.session.SqlSessionFactoryBuilder.build(SqlSessionFactoryBuilder.java:63)
at com.bdqn.TestStudent.main(TestStudent.java:37)
Caused by: org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: java.io.IOException: Could not find resource com/bdqn/dao/UserDaoMapper.xml
at org.apache.ibatis.builder.xml.XMLConfigBuilder.parseConfiguration(XMLConfigBuilder.java:106)
at org.apache.ibatis.builder.xml.XMLConfigBuilder.parse(XMLConfigBuilder.java:89)
at org.apache.ibatis.session.SqlSessionFactoryBuilder.build(SqlSessionFactoryBuilder.java:77)
... 2 more
Caused by: java.io.IOException: Could not find resource com/bdqn/dao/UserDaoMapper.xml
at org.apache.ibatis.io.Resources.getResourceAsStream(Resources.java:108)
at org.apache.ibatis.io.Resources.getResourceAsStream(Resources.java:95)
at org.apache.ibatis.builder.xml.XMLConfigBuilder.mapperElement(XMLConfigBuilder.java:315)
at org.apache.ibatis.builder.xml.XMLConfigBuilder.parseConfiguration(XMLConfigBuilder.java:104)
... 4 more原因
找不到mapper文件因为idea默认会在resource中寻找配置文件
解决办法一：
在pom中的<build>标签中加如下信息
代码语言：javascript复制 <resources>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.xml</include>
</includes>
</resource>
</resources>解决办法二：
在resource文件中写mapper文件，路径和箭头所指一致
项目结构：
