mybatis对象里面包含对象启动报错

我有两个表,一个user表 一个userLayer表,User对象中包含一个UserLayer对象.
但是mybatis单元测试的时候启动加载配置一直报错。下面是部分代码,麻烦大家帮忙看看

1.这是user对象,里面包含UserLayer对象

public class User {
    private Integer id;
    private UserLayer layerId;

2,UserMapper.xml是工具自动生成的什么都没改,以下是报错信息

 Caused by: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: java.lang.IllegalStateException: No typehandler found for property layerId
    at org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:120)
    at org.apache.ibatis.builder.xml.XMLMapperBuilder.parse(XMLMapperBuilder.java:92)
    at org.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:466)
    ... 43 more
Caused by: java.lang.IllegalStateException: No typehandler found for property layerId
    at org.apache.ibatis.mapping.ResultMapping$Builder.validate(ResultMapping.java:151)
    at org.apache.ibatis.mapping.ResultMapping$Builder.build(ResultMapping.java:140)
    at org.apache.ibatis.builder.MapperBuilderAssistant.buildResultMapping(MapperBuilderAssistant.java:394)
    at org.apache.ibatis.builder.xml.XMLMapperBuilder.buildResultMappingFromContext(XMLMapperBuilder.java:378)
    at org.apache.ibatis.builder.xml.XMLMapperBuilder.resultMapElement(XMLMapperBuilder.java:280)
    at org.apache.ibatis.builder.xml.XMLMapperBuilder.resultMapElement(XMLMapperBuilder.java:252)
    at org.apache.ibatis.builder.xml.XMLMapperBuilder.resultMapElements(XMLMapperBuilder.java:244)
    at org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:116)
    ... 45 more

配置文件可能有问题,贴出来看看

https://zhidao.baidu.com/question/204046070711445765.html

从日志上看,是你的映射文件中找不到layerId属性,你可以看看。但是最好能把映射文件贴出来,日志报错不一定准确。