IDEA-Cause: java.io.IOException: Could not find resource UserMapper.xml

用IDEA新建了一个测试MyBatis工程，工程目录如下

其中config是MyBatis的配置文件，内容如下

<?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">
<configuration>
    <environments default="development">
        <environment id="development">
            <transactionManager type="JDBC"></transactionManager>
            <dataSource type="POOLED">
                <property name="driver" value="com.mysql.jdbc.Driver"/>
                <property name="url" value="jdbc:mysql://localhost:3306/mybatis"/>
                <property name="username" value="root"/>
                <property name="password" value="19871111"/>
            </dataSource>
        </environment>
    </environments>

    <mappers>
        <mapper resource="com/shao/mapping/userMapper.xml"/>
    </mappers>
</configuration>

编译时提示错误 Error parsing SQL Mapper Configuration. Cause: java.io.IOException: Could not find resource com/shao/mapping/userMapper.xml

即找不到userMapper.xml这个Mapper文件，仔细查看了目录设置，并没有错误，在网上找了半天，终于发现原因：

idea不会编译src的java目录的xml文件

所以解决思路就是：将IDEA maven项目中src源代码下的xml等资源文件编译进classes文件夹
具体操作方法就是：配置maven的pom文件配置，在节点下添加代码：

<build>
        <resources>
            <resource>
                <directory>src/main/java</directory>
                <includes>
                    <include>**/*.xml</include>
                </includes>
            </resource>
        </resources>
    </build>