MVC +将值从一个控制器传递到另一个控制器

Question

我是MVC的新手，希望在此讨论如何将变量值从一个控制器传递到另一个控制器。基本上，我想要实现的是执行Facebook身份验证，并且在成功身份验证后，我应该得到值和完整路径变量值，我想将它传递给另一个控制器以便用新视图进一步处理。我不知道如果我做了什么至今道理：

我有一个ActionResult方法（简化，以使其更清晰）是这样的：

[HttpPost] 
public ActionResult Index(string facebookUID, string facebookAccessTok) 
{ 
    string fbUID = facebookUID; 
    string fbAcess = facebookAccessTok; 
    var fullpath = ""; 

    string uploadPath = Server.MapPath("~/upload"); 
    fullpath = uploadPath + "\\ProfilePic.png"; 

    return null; 
} 

在我的索引视图：

<script type="text/javascript"> 
    var uid = 0; 
    var accesstoken = ''; 

    function grantPermission() { 
     window.FB.login(function (response) { 
      if (response.authResponse) { 
       uid = response.authResponse.userID; 
       accesstoken = response.authResponse.accessToken; 
       var postData = { facebookUID: uid, facebookAccessTok: accesstoken }; 
       $.ajax({ 
        type: 'POST', 
        data: postData, 
        success: function() { 
         // process the results from the controller action 
         window.location.href = "Publish"; 
        } 
       }); 
      } else { 
       alert('User cancelled login'); 
      } 
     }, { scope: 'publish_stream' }); 
    }; 

在上面的视图中，我做了重定向到另一个页面调用“发布”，其控制器索引ActionResult要求fbAcess和全路径用于进一步处理的变量值。请咨询我如何传递价值观。

Answer 1

使用重定向：

[HttpPost] 
public ActionResult Index(string facebookUID, string facebookAccessTok) 
{ 
    string fbUID = facebookUID; 
    string fbAcess = facebookAccessTok; 
    var fullpath = ""; 

    string uploadPath = Server.MapPath("~/upload"); 
    fullpath = uploadPath + "\\ProfilePic.png"; 

    return RedirectToAction("Publish", "TheOtherController", new { fbAccess = fbAccess, fullpath = fullpath }); 
} 

public class TheOtherController : Controller 
{ 
    public ActionResult Publish(string fbAccess, string fullpath) 
    { 
     // Do whatever you want 
     // 
    } 
} 

如果使用标准格式将数据提交给Index方法这工作。如果你想保持Ajax来发送数据，修改代码以下列方式：

[HttpPost] 
public ActionResult Index(string facebookUID, string facebookAccessTok) 
{ 
    string fbUID = facebookUID; 
    string fbAcess = facebookAccessTok; 
    var fullpath = ""; 

    string uploadPath = Server.MapPath("~/upload"); 
    fullpath = uploadPath + "\\ProfilePic.png"; 

    var redirectUrl = new UrlHelper(Request.RequestContext).Action("Publish", new { fbAcess = fbAcess, fullpath = fullpath }); 
    return Json(new { Url = redirectUrl }); 
} 

并在您的客户端代码：

$.ajax({ type: 'POST', 
     data: postData, 
     dataType: 'json', 
     success: function (response) {    
      window.location.href = response.Url; 
     } 
}); 

Answer 2

身份验证成功，请拨打以下方法

return RedirectToAction("ActionName", "Controller", new {variable1 = value1, variable2 = value2/*...etc*/});