从 Web API 2 筛选器属性响应返回 JSON 的正确方法 Asp.net
本文关键字:JSON 方法 net Asp 返回 响应 API Web 筛选 属性 | 更新日期: 2023-09-27 18:30:57
我正在使用 ASP.NET Web API 2。我创建了一个操作过滤器,用于检查传入的请求,然后根据特定条件返回响应。
public override void OnAuthorization(HttpActionContext actionContext)
{
var req = actionContext.Request;
if (!req.Headers.Contains("x-key") || req.Headers.GetValues("x-key") == null)
{
actionContext.Response = req.CreateResponse(HttpStatusCode.Unauthorized);
actionContext.Response.Content = new StringContent("Token required", Encoding.UTF8, "text/html");
}
}
我想知道这是返回 JSON 响应的正确方法吗?我想返回一个自定义对象 ( var rebBody = new {message = "Unauthorized", payload = "", response = "401"};
) 作为响应正文中的 JSON。
使用这样的东西有意义吗:
var v = new {message = "Unauthorized", payload = "", response = "401"};
actionContext.Response.Content = new ObjectContent<object>(v, new JsonMediaTypeFormatter(), "application/json");
也许是这样的,
public override void OnAuthorization(HttpActionContext actionContext)
{
var req = actionContext.Request;
if (!req.Headers.Contains("x-key") || req.Headers.GetValues("x-key") == null)
{
HttpResponseMessage responseMessage = new HttpResponseMessage()
{
Content = new StringContent("{'"message'":'"Unauthorized'", '"payload'":'"'",'"response'":'"401'"}")
};
responseMessage.Content.Headers.ContentType = new MediaTypeHeaderValue("application/json");
actionContext.Response = responseMessage;
}
}
或者像这样:
public override void OnAuthorization(HttpActionContext actionContext)
{
var req = actionContext.Request;
if (!req.Headers.Contains("x-key") || req.Headers.GetValues("x-key") == null)
{
var v = new { message = "Unauthorized", payload = "", response = "401" };
HttpResponseMessage responseMessage = new HttpResponseMessage()
{
StatusCode = HttpStatusCodes.Unauthorized,
Content = new StringContent(JsonConvert.SerializeObject(v))
};
responseMessage.Content.Headers.ContentType = new MediaTypeHeaderValue("application/json");
actionContext.Response = responseMessage;
}
}
您可以使用另一个重载 CreateResponse
:
public static HttpResponseMessage CreateResponse<T>(
this HttpRequestMessage request,
T value)
例如:
var content = new { Property = 1 };
request.CreateResponse(content);
参见:https://msdn.microsoft.com/en-us/library/system.net.http.httprequestmessageextensions.createresponse(v=vs.118).aspx