c# - ASP.net MVC Controller 不会返回 View

Question

对 ASP.net 还是有点陌生​​，我遇到了这个奇怪的问题。这是一个非常基本的场景，但出现了问题，我无法弄清楚。 Deploy 应该返回一个名为 Deploy 的 View ，该 View 被键入到模型 CompiledAppModel 中。但是，当您在 View 中单击安装时，尽管调用了 return View() 方法，但它永远不会离开页面。有什么想法吗？

这是我的 Controller :

[HttpPost]
public ActionResult Deploy(string key_name, string custom_folder = "")
{
    string userId = Membership.GetUser().ProviderUserKey.ToString();
    UserDataModel user_info = _user_data_service.getUserDataByPrimaryIDNoDB(userId, HttpContext.Cache);
    log.Trace("Deploy was called. key_name:" + key_name + " UID: " + user_info.UID);

    // first we'll call the info to install remote application
    bool serviceInstall = _fms_app_service.DeployFmsApp(user_info, key_name, custom_folder);

    // then we'll call to generate client side info
    bool clientInstall = _fms_app_service.CompileClientApp(user_info, key_name);

    var model = _fms_app_service.getInstalledAppInfo(user_info, key_name);
    if (serviceInstall && clientInstall)
    {
        return RedirectToAction("Deploy", model);
    }

    return View("Error");
}

我的观点:

@model IEnumerable<Models.Applications.FmsAppModel>

@foreach (var item in Model) {
    <div class="col">
        <h2>@Html.DisplayFor(modelItem => item.friendly_name)</h2>
        <p>@Html.DisplayFor(modelItem => item.app_description)</p>
        <p><strong>Tags:</strong> @Html.DisplayFor(modelItem => item.app_type)</p>

        <a href="#" class="btn btn-primary install-app" data-key-name="@(item.key_name)">Install</a>

        @Html.ActionLink("Details", "Detailss", new {  id=item.app_id  })
    </div>
}
</div>

<script type="text/javascript">
   (function () {
        $('.install-app').on('click', function (e) {
            e.preventDefault();
            var data_key_name = $(this).data('key-name');
            //ajax install app
            $.ajax({
                type: "POST",
                url: '@Url.Action("Deploy")',
                data: {
                    key_name: data_key_name
                }
            });
        });
    })();
</script>

还有模型。

public class CompiledAppModel
{
    [Display(Name = "Admin URL")]
    public string adminURL { get; set; }

    [Display(Name = "Viewer URL")]
    public string viewerURL { get; set; }

    [Display(Name = "Embed URL")]
    public string embedURL { get; set; }
}

Answer 1

我假设您真的想在进行 ajax 调用后进行重定向。

据我所知，您必须实现自定义 ActionResult，例如:

public class AjaxAwareRedirectResult : RedirectResult
{       
    public AjaxAwareRedirectResult(String url)
        : base(url)
    {
    }

    public override void ExecuteResult(ControllerContext context)
    {
        if ( context.RequestContext.HttpContext.Request.IsAjaxRequest() )
        {
            String destinationUrl = UrlHelper.GenerateContentUrl(Url, context.HttpContext);

            JavaScriptResult result = new JavaScriptResult()
            {
                Script = "window.location='" + destinationUrl + "';"
            };
            result.ExecuteResult(context);
        }
        else
        {
            base.ExecuteResult(context);
        }
    }
}

在您的 Controller 中，只需执行以下操作:

    [HttpPost]
public ActionResult Deploy(string key_name, string custom_folder = "")
{
    string userId = Membership.GetUser().ProviderUserKey.ToString();
    UserDataModel user_info = _user_data_service.getUserDataByPrimaryIDNoDB(userId, HttpContext.Cache);
    log.Trace("Deploy was called. key_name:" + key_name + " UID: " + user_info.UID);
    // first we'll call the info to install remote application
    bool serviceInstall = _fms_app_service.DeployFmsApp(user_info, key_name, custom_folder);
    // then we'll call to generate client side info
    bool clientInstall = _fms_app_service.CompileClientApp(user_info, key_name);

    var model = _fms_app_service.getInstalledAppInfo(user_info, key_name);
    if (serviceInstall && clientInstall)
    {
        return RedirectToAction("Deploy", model);
    }
    return AjaxAwareRedirectResult("/foo");
}

但是，正如我所说，这只是我假设您真的想在 ajax 调用后重定向。