MyBatis报错找不到对应的JavaBean类

org.apache.ibatis.exceptions.PersistenceException: 
### Error building SqlSession.
### The error may exist in com/bucai/one_to_one/OneToOneMapper.xml
### The error occurred while processing mapper_resultMap[oneToOne]
### Cause: org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. The XML location is 'com/bucai/one_to_one/OneToOneMapper.xml'. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'card'.  Cause: java.lang.ClassNotFoundException: Cannot find class: card

<?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.bucai.table01.OneToOneMapper">
<!--    配置字段和实体对象属性的映射关系-->
    <resultMap id="oneToOne" type="card">
        <id column="cid" property="id"/>
        <result column="number" property="number"/>
        <!--association：配置被包含对象的映射关系
        property：被包含对象的变量名
        Java type ：被包含对象的数据类型-->
        <association property="p" javaType="person">
            <id column="pid" property="id"/>
            <result column="name" property="name"/>
            <result column="age" property="age"/>
        </association>
    </resultMap>
    <select id="selectAll" resultMap="oneToOne">
        SELECT c.id cid,number,pid,NAME,age FROM card c,person p WHERE c.pid=p.id
    </select>

</mapper>