【IDEA_mybatis】Error creating document instance. Cause: org.xml.sax.SAXParseException； lineNumber: 1；

error:

Caused by: org.xml.sax.SAXParseException; lineNumber: 8; columnNumber: 17; 文件提前结束。

Caused by: org.apache.ibatis.builder.BuilderException: Error creating document instance.  Cause: org.xml.sax.SAXParseException; lineNumber: 8; columnNumber: 17; 文件提前结束。

使用配置文件时，若写有两个xml文件请不全文件结构。
如下：

<?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">
<mapper namespace="com.it.dao.StudentMapper">
    <select id="selectAll" resultMap="StudentTeacher">
        select *
        from studentshen;
    </select>
    <select id="getTeacher" resultType="Teacher">
        select *
        from teacherkuang
        where id = #{id};
    </select>
</mapper>

<?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">

<mapper namespace="com.it.dao.TeacherMapper">

</mapper>

上面这么操作，就没有最上面的错误啦~注意~