Java新员工培养计划实施步骤
1. 设计数据库结构
- 创建员工表
- 创建培训课程表
- 创建员工与培训课程的关联表
CREATE TABLE employees (
id INT PRIMARY KEY,
name VARCHAR(50)
);
CREATE TABLE courses (
id INT PRIMARY KEY,
title VARCHAR(100)
);
CREATE TABLE employee_courses (
employee_id INT,
course_id INT,
FOREIGN KEY (employee_id) REFERENCES employees(id),
FOREIGN KEY (course_id) REFERENCES courses(id)
);
2. 编写Java实体类
public class Employee {
private int id;
private String name;
// getters and setters
}
public class Course {
private int id;
private String title;
// getters and setters
}
3. 创建DAO接口和实现类
public interface EmployeeDAO {
void addEmployee(Employee employee);
void updateEmployee(Employee employee);
void deleteEmployee(int id);
Employee getEmployeeById(int id);
}
public class EmployeeDAOImpl implements EmployeeDAO {
// 实现接口方法
}
public interface CourseDAO {
void addCourse(Course course);
void updateCourse(Course course);
void deleteCourse(int id);
Course getCourseById(int id);
}
public class CourseDAOImpl implements CourseDAO {
// 实现接口方法
}
4. 编写Service层
public interface TrainingService {
void enrollEmployeeInCourse(int employeeId, int courseId);
}
public class TrainingServiceImpl implements TrainingService {
private EmployeeDAO employeeDAO;
private CourseDAO courseDAO;
// 实现接口方法
}
5. 编写Controller层
@RestController
public class TrainingController {
@Autowired
private TrainingService trainingService;
@PostMapping("/enroll")
public ResponseEntity<String> enrollEmployeeInCourse(@RequestParam int employeeId, @RequestParam int courseId) {
trainingService.enrollEmployeeInCourse(employeeId, courseId);
return ResponseEntity.ok("Employee enrolled successfully in course");
}
}
类图
classDiagram
Employee <|-- EmployeeDAOImpl
Course <|-- CourseDAOImpl
TrainingService <-- TrainingServiceImpl
TrainingController --> TrainingService
通过以上步骤，你可以完成Java新员工培养计划的实施。希望这篇文章对你有所帮助！如果有任何疑问，欢迎随时向我提问。
