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在C# Web API中處理數據更新邏輯,通常需要遵循以下步驟:
public class User
{
public int Id { get; set; }
public string Name { get; set; }
public string Email { get; set; }
public string Password { get; set; }
}
public class UserRepository : IUserRepository
{
private readonly ApplicationDbContext _context;
public UserRepository(ApplicationDbContext context)
{
_context = context;
}
public async Task<User> UpdateUserAsync(User user)
{
_context.Users.Update(user);
await _context.SaveChangesAsync();
return user;
}
}
public class UserService : IUserService
{
private readonly IUserRepository _userRepository;
public UserService(IUserRepository userRepository)
{
_userRepository = userRepository;
}
public async Task<User> UpdateUserAsync(int id, User user)
{
var existingUser = await _userRepository.GetUserByIdAsync(id);
if (existingUser == null)
{
throw new Exception("User not found");
}
existingUser.Name = user.Name;
existingUser.Email = user.Email;
existingUser.Password = user.Password;
return await _userRepository.UpdateUserAsync(existingUser);
}
}
[ApiController]
[Route("api/[controller]")]
public class UsersController : ControllerBase
{
private readonly IUserService _userService;
public UsersController(IUserService userService)
{
_userService = userService;
}
[HttpPut("{id}")]
public async Task<IActionResult> UpdateUser(int id, User user)
{
try
{
var updatedUser = await _userService.UpdateUserAsync(id, user);
return Ok(updatedUser);
}
catch (Exception ex)
{
return BadRequest(ex.Message);
}
}
}
這個例子展示了如何在C# Web API中處理數據更新邏輯。當然,實際項目中可能需要根據具體需求進行調整。
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