关于mybatis中config找不到mapper中的xml

刚刚学习mybatis，尝试在写一个小项目，在配置config中遇到错误
org.apache.ibatis.exceptions.PersistenceException:

Error building SqlSession.

The error may exist in mapper/CategoryMapper.xml

Cause: org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: java.io.IOException: Could not find resource mapper/CategoryMapper.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 util.MyBatisUtil.<clinit>(MyBatisUtil.java:17)
at transaction.impl.MyBatisTransactionManager.beginTransaction(MyBatisTransactionManager.java:15)
at service.proxy.RoomServiceProxy.findAllCategory(RoomServiceProxy.java:26)
at action.Test.main(Test.java:10)

Caused by: org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: java.io.IOException: Could not find resource mapper/CategoryMapper.xml
at org.apache.ibatis.builder.xml.XMLConfigBuilder.parseConfiguration(XMLConfigBuilder.java:105)
at org.apache.ibatis.builder.xml.XMLConfigBuilder.parse(XMLConfigBuilder.java:88)
at org.apache.ibatis.session.SqlSessionFactoryBuilder.build(SqlSessionFactoryBuilder.java:77)
... 5 more
Caused by: java.io.IOException: Could not find resource mapper/CategoryMapper.xml
at org.apache.ibatis.io.Resources.getResourceAsStream(Resources.java:104)
at org.apache.ibatis.io.Resources.getResourceAsStream(Resources.java:91)
at org.apache.ibatis.builder.xml.XMLConfigBuilder.mapperElement(XMLConfigBuilder.java:309)
at org.apache.ibatis.builder.xml.XMLConfigBuilder.parseConfiguration(XMLConfigBuilder.java:103)
... 7 more
Exception in thread "main" java.lang.ExceptionInInitializerError: MyBaitsUtil初始化错误org.apache.ibatis.exceptions.PersistenceException:

Error building SqlSession.

The error may exist in mapper/CategoryMapper.xml

Cause: org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: java.io.IOException: Could not find resource mapper/CategoryMapper.xml

at util.MyBatisUtil.<clinit>(MyBatisUtil.java:22)
at transaction.impl.MyBatisTransactionManager.beginTransaction(MyBatisTransactionManager.java:15)
at service.proxy.RoomServiceProxy.findAllCategory(RoomServiceProxy.java:26)
at action.Test.main(Test.java:10)

我的mybatis-config
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd" >

<properties resource="database.properties"></properties>

<typeAliases>
    <package name="entity"/>
</typeAliases>

<environments default="mybatis">
    <environment id="mybatis">
        <transactionManager type="JDBC"></transactionManager>
        <dataSource type="POOLED">
            <property name="driver" value="${driver}"/>
            <property name="url" value="${url}"/>
            <property name="username" value="${username}"/>
            <property name="password" value="${password}"/>
        </dataSource>
    </environment>
</environments>

<mappers>
    <mapper resource="mapper/CategoryMapper.xml"/>
</mappers>

我的路径

异常说找不到mpper/Category，可是我感觉我没写错呀

路径错误 加上src/mapper 写上完整路径