c# - 使用 MVC AccountController 登录 Android App

Question

我正在开发一个移动应用程序(在 Android 中)，它必须连接到 Azure 数据库(该数据库也被该应用程序的 Web 版本使用)。我使用 HttpURLConnection 成功地将 POST/PUT/GET 请求发送到 Web 服务 API，现在我正在尝试使用 MVC AccountController 登录应用程序。
这是我尝试调用的 MVC AccountController 方法:

    // POST: /Account/Login
    [HttpPost]
    [AllowAnonymous]
    [ValidateAntiForgeryToken]
    public async Task<IActionResult> Login(LoginViewModel model, string returnUrl = null)
    {   
        ViewData["ReturnUrl"] = returnUrl;
        if (ModelState.IsValid)
        {
            // This doesn't count login failures towards account lockout
            // To enable password failures to trigger account lockout, set lockoutOnFailure: true
            var result = await _signInManager.PasswordSignInAsync(model.Email, model.Password, model.RememberMe, lockoutOnFailure: false);
            if (result.Succeeded)
            {
                _logger.LogInformation(1, "User logged in.");
                return RedirectToLocal(returnUrl);
            }
            if (result.RequiresTwoFactor)
            {
                return RedirectToAction(nameof(SendCode), new { ReturnUrl = returnUrl, RememberMe = model.RememberMe });
            }
            if (result.IsLockedOut)
            {
                _logger.LogWarning(2, "User account locked out.");
                return View("Lockout");
            }
            else
            {
                ModelState.AddModelError(string.Empty, "Invalid login attempt.");
                return View(model);
            }
        }

        // If we got this far, something failed, redisplay form
        return View(model);
    }

这是 LoginViewModel 结构(登录方法的第一个参数)

public class LoginViewModel
{
    [Required]
    [EmailAddress]
    public string Email { get; set; }

    [Required]
    [DataType(DataType.Password)]
    public string Password { get; set; }

    [Display(Name = "Remember me?")]
    public bool RememberMe { get; set; }
}

这是我已经尝试过的，但我收到了:Bad request

public static String apiURL = "http://mysite/account/login";

public static String logIn() {
    HttpURLConnection connection = null;

    try {
        URL url = new URL(apiURL);
        JSONObject postDataParams = new JSONObject();
        postDataParams.put("Email", "test@yahoo.com");
        postDataParams.put("Password", "mypass");
        postDataParams.put("RememberMe", true);

        JSONObject finalJson = new JSONObject();
        finalJson.put("model", postDataParams);
        finalJson.put("returnUrl", "");

        connection = (HttpURLConnection) url.openConnection();
        connection.setReadTimeout(15000);
        connection.setConnectTimeout(15000);
        connection.setRequestMethod("POST");
        connection.setRequestProperty("Content-Type",
                "application/json");
        connection.setDoInput(true);
        connection.setDoOutput(true);
        OutputStreamWriter out = new OutputStreamWriter(connection.getOutputStream());
        out.write(finalJson.toString());
        out.close();
        System.out.println(finalJson.toString());
        StringBuilder sb = new StringBuilder();
        sb.append("");
        int HttpResult = connection.getResponseCode();
        if (HttpResult == HttpURLConnection.HTTP_OK) {
            BufferedReader br = new BufferedReader(new InputStreamReader(
                    connection.getInputStream(), "utf-8"));
            String line = null;
            while ((line = br.readLine()) != null) {
                sb.append(line + "\n");
            }
            br.close();

            System.out.println("" + sb.toString());

        } else {
            System.out.println(connection.getResponseMessage());
        }
        return sb.toString();
    } catch (Exception e) {
        return new String("Exception: " + e.getMessage());
    } finally {
        connection.disconnect();
    }
}

有人知道我该怎么做吗？谢谢!

Answer 1

我终于找到了解决方案，有人告诉我应该放弃使用网页版应用程序也使用的 LoginViewModel。所以我用一个新的资源写了一个新的 Controller ，它可以工作:这是 Controller 代码:

public class AccountMobileController : Controller
{
    private readonly ApplicationDbContext context;
    private readonly IMapper mapper;

    private readonly UserManager<ApplicationUser> _userManager;
    private readonly SignInManager<ApplicationUser> _signInManager;
    private readonly IEmailSender _emailSender;
    private readonly ISmsSender _smsSender;
    private readonly ILogger _logger;
    private readonly string _externalCookieScheme;

    // POST api/mobilelogin
    [AllowAnonymous]
    [HttpPost("/api/mobilelogin")]
    public async Task<IActionResult> Login([FromBody]LoginMobileResource model)
    {
        if (ModelState.IsValid)
        {
            // This doesn't count login failures towards account lockout
            // To enable password failures to trigger account lockout, set lockoutOnFailure: true
            var result = await _signInManager.PasswordSignInAsync(model.Email, model.Password, model.RememberMe, lockoutOnFailure: false);
            if (result.Succeeded)
            {
                var user = context.Users.SingleOrDefault(c => c.Email == model.Email);
                /* _logger.LogInformation(1, "User logged in.");
                 return RedirectToLocal(returnUrl);*/
                var modeltoreturn = new LoginMobileResource
                {
                    Status = "Ok",
                    Email = user.Email,
                    Password= "",
                    RememberMe = model.RememberMe,
                    UserId = user.Id
                };
                return Ok(modeltoreturn);
            }
            else
            {
                var modeltoreturn = new LoginMobileResource
                {
                    Status = "Wrong password",
                    Email = model.Email,
                    Password = "",
                    UserId = ""
                };
                return Ok(modeltoreturn);
            }
        }
        // If we got this far, something failed, redisplay form
        model.Status = "Non-existent account";
        return Ok(model);
    }
 }

这是我的 LoginMobileResource

public class LoginMobileResource
{
    [Required]
    [EmailAddress]
    public string Email { get; set; }

    [Required]
    [DataType(DataType.Password)]
    public string Password { get; set; }

    [Display(Name = "Remember me?")]
    public bool RememberMe { get; set; }

    public String Status { get; set; }

    public String UserId { get; set; }
}

Java 代码是一样的，只是现在我只发送 postDataParams

out.write(postDataParams.toString());