Java Compilation Errors in 'demo1' Module: Missing Packages and Symbols

The error messages indicate that there are missing packages and symbols in your Java code. Here is a summary of the errors:

1. In 'IndexController.java':

   • The packages 'org.springframework.stereotype' and 'org.springframework.web.bind.annotation' are missing.
   • The symbol 'Controller' and 'GetMapping' cannot be found.

2. In 'LoginController.java':

   • The packages 'org.apache.ibatis.annotations', 'org.springframework.beans.factory.annotation', 'org.springframework.stereotype', and 'org.springframework.web.bind.annotation' are missing.
   • The symbols 'Controller', 'RestController', 'RequestMapping', and 'Autowired' cannot be found.

3. In 'User.java':

   • The package 'lombok' is missing.
   • The symbol 'Data' cannot be found.

4. In 'IUserDao.java':

   • The package 'org.springframework.stereotype' is missing.
   • The symbol 'Repository' cannot be found.

5. In 'Demo1Application.java':

   • The packages 'org.mybatis.spring.annotation', 'org.springframework.boot', 'org.springframework.boot.autoconfigure', 'org.springframework.stereotype', and 'org.springframework.web.bind.annotation' are missing.
   • The symbols 'Controller', 'MapperScan', and 'SpringBootApplication' cannot be found.
   • The symbol 'RequestMapping' cannot be found in the class 'Demo1Application'.
   • The variable 'SpringApplication' cannot be found.

6. In 'Pages.java' and 'Result.java':

   • The package 'lombok' is missing.
   • The symbol 'Data' cannot be found.

7. In 'LoginModelImpl.java':

   • The packages 'org.springframework.beans.factory.annotation' and 'org.springframework.stereotype' are missing.
   • The symbol 'Component' and 'Autowired' cannot be found.

8. In 'LoginServiceImpl.java':

   • The packages 'org.apache.commons.lang3', 'org.springframework.beans.factory.annotation', and 'org.springframework.stereotype' are missing.
   • The symbol 'Service' and 'Autowired' cannot be found.
   • The method 'getUserName()' and 'getPassword()' cannot be found in the class 'User'.
   • The variable 'StringUtils' cannot be found.

To resolve these errors, make sure you have the correct dependencies and packages imported in your code.