在MVC6中返回Json(rows，JsonRequestBehavior.AllowGet)问题 [英] IN MVC6 return Json(rows, JsonRequestBehavior.AllowGet) ISSUE

问题描述

在MVC6中返回Json(rows，JsonRequestBehavior.AllowGet);方法已更改，不允许设置JsonrequestBehavior. MVC6中的替代方法是什么

IN MVC6 return Json(rows, JsonRequestBehavior.AllowGet); method is changed and not allowing to set JsonrequestBehavior. What is alternative in MVC6

推荐答案

aspnet核心中不再存在采用JsonRequestBehavior的Json方法的重载.

That overload of Json method which takes JsonRequestBehavior does not exist in the aspnet core any more.

您只需使用要发送回的对象数据调用Json方法.

You can simply call the Json method with the object data you want to send back.

public IActionResult GetJsonData()
{
  var rows = new List<string>  {  "Item 1","Item 2" };
  return Json(rows);
}

甚至

public IList<string> GetJsonData()
{
    var rows = new List<string>  {"aa", "bb" };
    return rows;
}

或使用Ok方法并以IActionResult作为返回类型.

or using Ok method and having IActionResult as the return type.

public IActionResult GetJsonData()
{
   var rows = new List<string>   { "aa",  "bb"  };
    return Ok(rows);
}

，然后让内容协商器以请求的格式(通过Accept标头)返回数据. ASP.NET Core MVC使用的默认格式是JSON.因此，如果您未明确要求其他格式(例如:application/xml)，则会得到json响应.

and let the content negotiator return the data in the requested format(via Accept header). The default format used by ASP.NET Core MVC is JSON. So if you are not explicitly requesting another format(ex :application/xml), you will get json response.

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