Error invalid bound statement (not found): com ruoyi. stock. mapper. StockDetailMapper. XXXX solution

Network has many solutions , I haven't solved it , It turned out to be a file xml.xml 了 , One more. .xml

Other methods are attached below ：

1. Check xml Where are the documents package Name and Mapper interface Package name

<mapper namespace="me.tspace.pm.dao.UserDao">
 mapper Of namespace It's not right ！！！ Attention system modification .

2.UserDao The method of in UserDao.xml There is no , And then execute UserDao The method will report this

3. UserDao The method return value of is List<User>, and select Element is not configured correctly ResultMap, Or just configure ResultType!

4. If you confirm that there are no above questions , Please modify the corresponding xml file , For example, delete a blank line , preservation . Problem solving

5. look down mapper Of XML Whether the configuration path is correct
 

About Mybatis-plus Report errors Invalid bound statement (not found):com.xxx.xxx.xxxMapper.selectList

This error may be written by yourself UserMapper Time inherits BaseMapper But not added Generic .

 

Just add the corresponding generic ,

The result will not be wrong

 

 

If you check everything , And it turns out there's no problem , It's better to look at your own configuration file , At that time, it was very likely that the configuration was less scanning mapper Things that are ：

Creating SqlSessionFactory When , The following configuration is added ：

sqlSessionFactoryBean.setMapperLocations(new PathMatchingResourcePatternResolver().getResources("classpath:mapper/*.xml"));
sqlSessionFactoryBean.setTypeAliasesPackage("com.test.maper");
And pay attention to sqlSessionFactoryBean.setTypeAliasesPackage Parameter does not support wildcards *, If there are multiple packages available through "," Equal division

If you need to load the dependency passed jar In bag mapper In the catalog xml,classpath:mapper/*.xml It is amended as follows classpath*:mapper/*.xml