org.apache.ibatis.binding.BindingException: Type interface pers.zhb.dao.StudentDao is not known to the MapperRegistry.

1、在对mybatis进行测试的时候报错：org.apache.ibatis.binding.BindingException: Type interface pers.zhb.dao.StudentDao is not known to the MapperRegistry。已经检查了核心配置文件和mapper.xml，并未发现异常，查询相关资料大多提示是mapper.xml的namespace配置错误，但是这里并未发现错误

2、错误原因

没有将mapper.xml文件引入到核心配置文件，导致错误

<?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>
    <properties resource="jdbc.properties"/>
    <environments default="development">
        <environment id="development">
            <!-- 使用jdbc事务管理 -->
            <transactionManager type="JDBC" />
            <!-- 数据库连接池 -->
            <dataSource type="POOLED">
                <property name="driver" value="${jdbc.driver}" />
                <property name="url" value="${jdbc.url}" />
                <property name="username" value="${jdbc.username}" />
                <property name="password" value="${jdbc.password}" />
            </dataSource>
        </environment>
    </environments>

    <mappers>
        <mapper resource="pers.zhb.dao/StudentMapper.xml"></mapper>
    </mappers>
</configuration>

添加代码将mapper.xml文件引入到mybatis的核心配置文件。

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