MyBatis with Spring：找不到结果映射

Question

我无法使用xml文件将查询结果映射到带有MyBatis和Spring Boot的bean。

public interface MyMapper {
    @ResultMap("MyBean")
    @Select("SELECT myData as myData FROM myTable")
    public List<MyMapper> getMappedData();
}

<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">

<mapper namespace="myPackage.MyMapper">
    <resultMap id="MyBean" type="MyBean">
        <id property="myData " column="myData " />
    </resultMap>
</mapper>

@SpringBootApplication
@EnableTransactionManagement
@MapperScan("myPackage")
@PropertySource(value = "classpath:application.properties")
public class Application extends SpringBootServletInitializer {

    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }

    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
        return application.sources(Application.class);
    }

    @Value("${spring.datasource.jndi-name}")
    private String jndiName;

    @Bean
    public DataSource dataSource() {
        final JndiDataSourceLookup dsLookup = new JndiDataSourceLookup();
        DataSource dataSource = dsLookup.getDataSource(jndiName);
        return dataSource;
    }

    @Bean
    public DataSource jndiObjectFactoryBean() {
        JndiObjectFactoryBean jofb = new JndiObjectFactoryBean();
        jofb.setJndiName(jndiName);
        return (DataSource) jofb.getObject();
    }

    @Bean
    public DataSourceTransactionManager transactionManager(DataSource dataSource) {
        return new DataSourceTransactionManager(dataSource);
    }

    @Bean
    public ManagedTransactionFactory transactionFactory() {
        return new ManagedTransactionFactory();
    }

    @Bean
    public SqlSessionFactoryBean sqlSessionFactory(DataSource dataSource) throws Exception {
        SqlSessionFactoryBean sessionFactory = new SqlSessionFactoryBean();
        sessionFactory.setDataSource(dataSource);
        sessionFactory.setTypeAliasesPackage("beansPackage");
        return sessionFactory;
    }

    @Bean
    public SqlSessionFactory sqlSessionFactory() throws Exception {
      SqlSessionFactoryBean sqlSessionFactory = new SqlSessionFactoryBean();
      sqlSessionFactory.setDataSource(dataSource());
      return (SqlSessionFactory) sqlSessionFactory.getObject();
    }

}

@Alias("MyBean")
public class MyBeanimplements Serializable {
    private static final long serialVersionUID = 3143220123058683967L;
    private String myData;
}

但MyBatis似乎找不到xml映射器，因此无法在正确的bean上映射结果。我收到的错误是：

16:02:56,074错误[org.springframework.boot.web.servlet.support.errorpagefilter]（默认任务-1）由于异常[找不到结果映射Mypackage.MyMapper.MyBean]，从请求[/Mypage/GetData]转发到错误页：org.apache.ibatis.builder.IncompleteElementException：找不到结果映射Mypackage.MyMapper.MyBean

我错过了一些配置？可能在application.property文件上？

Answer 1

您必须在

例如：MyBean pkg是：org.mypkg.MyBean：

 <resultMap id="MyBean" type="org.mypkg.MyBean">
    <id property="myData " column="myData " />
</resultMap>