何为构建智能人事管理系统？核心逻辑与价值解析

// 员工实体类示例
public class Employee
{
    public int Id { get; set; }
    public string Name { get; set; }
    public string Department { get; set; }
    public DateTime HireDate { get; set; }
    public string Position { get; set; }
    
    // 计算工龄方法
    public int CalculateTenure()
    {
        return (DateTime.Now - HireDate).Days / 365;
    }
}

// 人事管理服务接口
public interface IHRService
{
    Employee GetEmployeeById(int id);
    List GetEmployeesByDepartment(string department);
    bool UpdateEmployeeInfo(Employee employee);
}

// 前端API调用示例 - 获取员工列表
async function fetchEmployees(department = null) {
  try {
    let url = '/api/employees';
    if (department) {
      url += `?department=${encodeURIComponent(department)}`;
    }
    
    const response = await fetch(url, {
      method: 'GET',
      headers: {
        'Content-Type': 'application/json',
        'Authorization': `Bearer ${getAuthToken()}`
      }
    });
    
    if (!response.ok) {
      throw new Error('获取员工数据失败');
    }
    
    return await response.json();
  } catch (error) {
    console.error('Error fetching employees:', error);
    throw error;
  }
}

// 使用示例
fetchEmployees('技术部')
  .then(employees => {
    console.log('员工数据:', employees);
    // 更新UI显示
  })
  .catch(error => {
    // 错误处理
  });

-- 创建员工表
CREATE TABLE Employees (
    EmployeeID INT PRIMARY KEY IDENTITY(1,1),
    FirstName NVARCHAR(50) NOT NULL,
    LastName NVARCHAR(50) NOT NULL,
    Email NVARCHAR(100) UNIQUE NOT NULL,
    DepartmentID INT NOT NULL,
    Position NVARCHAR(100),
    HireDate DATE NOT NULL,
    Salary DECIMAL(10,2),
    CreatedDate DATETIME DEFAULT GETDATE(),
    ModifiedDate DATETIME DEFAULT GETDATE(),
    CONSTRAINT FK_Employees_Departments FOREIGN KEY (DepartmentID) 
    REFERENCES Departments(DepartmentID)
);

-- 创建权限角色表
CREATE TABLE RolePermissions (
    PermissionID INT PRIMARY KEY IDENTITY(1,1),
    RoleName NVARCHAR(50) NOT NULL,
    ResourceType NVARCHAR(50) NOT NULL,
    CanView BIT DEFAULT 0,
    CanEdit BIT DEFAULT 0,
    CanDelete BIT DEFAULT 0
);