Attribute "resource" must be declared for element type "mapper".

今天在玩mybatis的时候，遇到这个奇葩问题。

最后发现，原因是 dtd文件配置错误了。错把Mapper的直接copy过来

把DOCTYPE mapper改成configuration，Mapper改成config即可

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

<typeAliases>
    <typeAlias alias="Jit" type="springmvcexample.demo.model.Jit"/>
</typeAliases>

<!-- 注册对象的空间命名 -->
<environments default="development">
    <environment id="development">
        <transactionManager type="JDBC"/>
        <dataSource type="POOLED">
            <property name="driver" value="com.mysql.jdbc.Driver"/>
            <property name="url" value="jdbc:mysql://10.199.160.35:3306/vop_data_stg"/>
            <property name="username" value="root"/>
            <property name="password" value="test"/>
        </dataSource>
    </environment>
</environments>

<mappers>
    <mapper resource="jitMapper.xml" />
</mappers>
</configuration>