问题描述：

org.apache.ibatis.exceptions.PersistenceException:

Error building SqlSession.

The error may exist in com/kuang/dao/UserMapper.xml

Cause: org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: java.io.IOException: Could not find resource com/kuang/dao/UserMapper.xml

没有找到UserMapper.xml

原因：

target目录中没有生成 .xml配置文件，说白了就是项目执行的时候没有扫描到配置文件

解决办法：

在pom.xml中加入过滤器，让项目执行的时候将xml文件也扫描进去

pom.xml

<!-- 资源过滤  让其能够扫描到.properties .xml文件   -->
<build><resources><resource><directory>src/main/resources</directory><includes><include>**/*.properties</include><include>**/*.xml</include></includes><filtering>true</filtering></resource><resource><directory>src/main/java</directory><includes><include>**/*.properties</include><include>**/*.xml</include></includes><filtering>true</filtering></resource></resources>
</build>

日志：

"D:\Program Files\Java\jdk1.8.0_261\bin\java.exe" -ea -Didea.test.cyclic.buffer.size=1048576 "-javaagent:D:\Program Files\IntelliJ IDEA 2020.2.1\lib\idea_rt.jar=10432:D:\Program Files\IntelliJ IDEA 2020.2.1\bin" -Dfile.encoding=UTF-8 -classpath "D:\Program Files\IntelliJ IDEA 2020.2.1\lib\idea_rt.jar;D:\Program Files\IntelliJ IDEA 2020.2.1\plugins\junit\lib\junit5-rt.jar;D:\Program Files\IntelliJ IDEA 2020.2.1\plugins\junit\lib\junit-rt.jar;D:\Program Files\Java\jdk1.8.0_261\jre\lib\charsets.jar;D:\Program Files\Java\jdk1.8.0_261\jre\lib\deploy.jar;D:\Program Files\Java\jdk1.8.0_261\jre\lib\ext\access-bridge-64.jar;D:\Program Files\Java\jdk1.8.0_261\jre\lib\ext\cldrdata.jar;D:\Program Files\Java\jdk1.8.0_261\jre\lib\ext\dnsns.jar;D:\Program Files\Java\jdk1.8.0_261\jre\lib\ext\jaccess.jar;D:\Program Files\Java\jdk1.8.0_261\jre\lib\ext\jfxrt.jar;D:\Program Files\Java\jdk1.8.0_261\jre\lib\ext\localedata.jar;D:\Program Files\Java\jdk1.8.0_261\jre\lib\ext\nashorn.jar;D:\Program Files\Java\jdk1.8.0_261\jre\lib\ext\sunec.jar;D:\Program Files\Java\jdk1.8.0_261\jre\lib\ext\sunjce_provider.jar;D:\Program Files\Java\jdk1.8.0_261\jre\lib\ext\sunmscapi.jar;D:\Program Files\Java\jdk1.8.0_261\jre\lib\ext\sunpkcs11.jar;D:\Program Files\Java\jdk1.8.0_261\jre\lib\ext\zipfs.jar;D:\Program Files\Java\jdk1.8.0_261\jre\lib\javaws.jar;D:\Program Files\Java\jdk1.8.0_261\jre\lib\jce.jar;D:\Program Files\Java\jdk1.8.0_261\jre\lib\jfr.jar;D:\Program Files\Java\jdk1.8.0_261\jre\lib\jfxswt.jar;D:\Program Files\Java\jdk1.8.0_261\jre\lib\jsse.jar;D:\Program Files\Java\jdk1.8.0_261\jre\lib\management-agent.jar;D:\Program Files\Java\jdk1.8.0_261\jre\lib\plugin.jar;D:\Program Files\Java\jdk1.8.0_261\jre\lib\resources.jar;D:\Program Files\Java\jdk1.8.0_261\jre\lib\rt.jar;D:\IdeaProjects\MyBatis-Study\mybatis-01\target\test-classes;D:\IdeaProjects\MyBatis-Study\mybatis-01\target\classes;D:\Program Files\mavenRepository\mysql\mysql-connector-java\8.0.16\mysql-connector-java-8.0.16.jar;D:\Program Files\mavenRepository\com\google\protobuf\protobuf-java\3.6.1\protobuf-java-3.6.1.jar;D:\Program Files\mavenRepository\org\mybatis\mybatis\3.4.2\mybatis-3.4.2.jar;D:\Program Files\mavenRepository\junit\junit\4.11\junit-4.11.jar;D:\Program Files\mavenRepository\org\hamcrest\hamcrest-core\1.3\hamcrest-core-1.3.jar" com.intellij.rt.junit.JUnitStarter -ideVersion5 com.kuang.dao.UserDaoTest,test
org.apache.ibatis.exceptions.PersistenceException:
### Error building SqlSession.
### The error may exist in com/kuang/dao/UserMapper.xml
### Cause: org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: java.io.IOException: Could not find resource com/kuang/dao/UserMapper.xmlat 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.kuang.utils.MyBatisUtils.<clinit>(MyBatisUtils.java:23)at com.kuang.dao.UserDaoTest.test(UserDaoTest.java:38)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.lang.reflect.Method.invoke(Method.java:498)at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)at org.junit.runners.ParentRunner.run(ParentRunner.java:309)at org.junit.runner.JUnitCore.run(JUnitCore.java:160)at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:69)at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:220)at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:53)
Caused by: org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: java.io.IOException: Could not find resource com/kuang/dao/UserMapper.xmlat org.apache.ibatis.builder.xml.XMLConfigBuilder.parseConfiguration(XMLConfigBuilder.java:120)at org.apache.ibatis.builder.xml.XMLConfigBuilder.parse(XMLConfigBuilder.java:98)at org.apache.ibatis.session.SqlSessionFactoryBuilder.build(SqlSessionFactoryBuilder.java:78)... 25 more
Caused by: java.io.IOException: Could not find resource com/kuang/dao/UserMapper.xmlat org.apache.ibatis.io.Resources.getResourceAsStream(Resources.java:114)at org.apache.ibatis.io.Resources.getResourceAsStream(Resources.java:100)
SqlSessionFactory实例获取异常at org.apache.ibatis.builder.xml.XMLConfigBuilder.mapperElement(XMLConfigBuilder.java:367)at org.apache.ibatis.builder.xml.XMLConfigBuilder.parseConfiguration(XMLConfigBuilder.java:118)... 27 morejava.lang.NullPointerExceptionat com.kuang.utils.MyBatisUtils.getSqlSession(MyBatisUtils.java:33)at com.kuang.dao.UserDaoTest.test(UserDaoTest.java:38)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.lang.reflect.Method.invoke(Method.java:498)at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)at org.junit.runners.ParentRunner.run(ParentRunner.java:309)at org.junit.runner.JUnitCore.run(JUnitCore.java:160)at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:69)at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:220)at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:53)Process finished with exit code -1

【问题解决】Cause: java.io.IOException: Could not find resource com/kuang/dao/UserMapper.xml相关推荐

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【问题解决】Cause: java.io.IOException: Could not find resource com/kuang/dao/UserMapper.xml

文章目录

问题描述：

原因：

解决办法：

日志：

【问题解决】Cause: java.io.IOException: Could not find resource com/kuang/dao/UserMapper.xml相关推荐

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