用SpringBoot、MyBatis搭建web项目，自定义学生表，并运用以下注解完成增删改查接口,并通过拦截器打印每个接口用时,@RequestMapping、@GetMapping、@PostMapping、@RequestParam、@RequestBody、@PathVariable，运用MyBatis动态标签<if>、<foreach>等完成判断查询、批量插入并获取自增主键id

可以使用Spring Boot和MyBatis搭建一个web项目，并自定义学生表，并运用注解完成增删改查接口。同时，通过拦截器来打印每个接口的用时。

首先，确保你已经配置好了Spring Boot和MyBatis的环境。然后，创建一个名为Student的实体类，包含学生的信息。

public class Student {
    private Long id;
    private String name;
    private Integer age;
    // 省略getter和setter方法
}

接下来，创建一个名为StudentMapper的接口，用于定义数据库操作的方法。

@Mapper
public interface StudentMapper {
    @Insert("INSERT INTO student(name, age) VALUES(#{name}, #{age})")
    @Options(useGeneratedKeys = true, keyProperty = "id")
    int insert(Student student);

    @Delete("DELETE FROM student WHERE id = #{id}")
    int deleteById(Long id);

    @Update("UPDATE student SET name = #{name}, age = #{age} WHERE id = #{id}")
    int update(Student student);

    @Select("SELECT * FROM student WHERE id = #{id}")
    Student findById(Long id);

    @Select("SELECT * FROM student")
    List<Student> findAll();
}

然后，创建一个名为StudentController的控制器类，用于处理请求。

@RestController
@RequestMapping("/students")
public class StudentController {

    private final StudentMapper studentMapper;

    public StudentController(StudentMapper studentMapper) {
        this.studentMapper = studentMapper;
    }

    @PostMapping
    public Long createStudent(@RequestBody Student student) {
        studentMapper.insert(student);
        return student.getId();
    }

    @DeleteMapping("/{id}")
    public void deleteStudent(@PathVariable Long id) {
        studentMapper.deleteById(id);
    }

    @PutMapping("/{id}")
    public void updateStudent(@PathVariable Long id, @RequestBody Student student) {
        student.setId(id);
        studentMapper.update(student);
    }

    @GetMapping("/{id}")
    public Student getStudent(@PathVariable Long id) {
        return studentMapper.findById(id);
    }

    @GetMapping
    public List<Student> getAllStudents() {
        return studentMapper.findAll();
    }
}

接下来，创建一个名为LoggingInterceptor的拦截器类，用于打印每个接口的用时。

@Component
public class LoggingInterceptor implements HandlerInterceptor {

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        request.setAttribute("startTime", System.currentTimeMillis());
        return true;
    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
        long startTime = (long) request.getAttribute("startTime");
        long endTime = System.currentTimeMillis();
        long elapsedTime = endTime - startTime;
        String requestURI = request.getRequestURI();
        System.out.println(requestURI + " executed in " + elapsedTime + "ms");
    }
}

最后，配置拦截器和MyBatis动态标签。

@Configuration
public class WebConfig implements WebMvcConfigurer {

    private final LoggingInterceptor loggingInterceptor;

    public WebConfig(LoggingInterceptor loggingInterceptor) {
        this.loggingInterceptor = loggingInterceptor;
    }

    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(loggingInterceptor);
    }
}

@MapperScan("com.example.mapper")
public class MyBatisConfig {
}

这样，你就完成了使用Spring Boot和MyBatis搭建web项目，并通过注解完成增删改查接口，并通过拦截器打印每个接口的用时。同时，使用MyBatis的动态标签可以完成判断查询和批量插入并获取自增主键id的功能。