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HomeJavajavaTutorialHow to solve the problem of TypeAlias ​​loading Mybatis based on SpringBoot

SpringBoot loads Mybatis' TypeAlias

After springboot is compiled into a jar and then run on Linux, it will report that the entity class corresponding to type alias cannot be found. This is a problem with springboot's package scanning.

The project uses Mybatis's DefaultVFS for scanning by default, but in the springboot environment, Mybatis's DefaultVFS will cause problems when scanning packages, so the VFS can only be modified for clarity

Directly paste the code:

@Bean
    public SqlSessionFactory sqlSessionFactoryBean() throws Exception {
        logger.info("load SpringBootVFS");
        //DefaultVFS在获取jar上存在问题,使用springboot只能修改
        VFS.addImplClass(SpringBootVFS.class);
        SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean();
        sqlSessionFactoryBean.setDataSource(dataSource());
        PathMatchingResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
        Resource[] resources1 = resolver.getResources("classpath*:/mybatis/*.xml");
        Resource[] resources2 = resolver.getResources("classpath*:/mysql/mapper/*.xml");
        Resource[] resources = (Resource[]) ArrayUtils.addAll(resources1,resources2);
        sqlSessionFactoryBean.setMapperLocations(resources);
        sqlSessionFactoryBean.setTypeAliasesPackage("com.xxx.xx.entity");
        return sqlSessionFactoryBean.getObject();
    }

When springboot is packaged and started, there is an error that the typeAlias ​​class name of mybatis cannot be found.

The springBoot project runs normally on IDEA but an error occurs after packaging. The error is roughly mybatis parsing the Mapper. xml typeAlias ​​cannot find the XX class

The tag in Mapper:

<select parameterType="XXClass" resultMap="XXMap">

This way of writing has no problem running in IDEA, but there is a problem with packaging.

The correct way of writing:

<select parameterType="cn.test.xxx.XXClass" resultMap="XXMap">

The parameterType in the code must use the full path, otherwise an error will occur.

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