响应JSON请求

Question

我试图使用JSON . net与WebRequest，检索JSON使用"GET"。从本质上讲，我停留在解析部分并抓取要测试的项目上。WebResponse，如何使用WebResponse检索JSON文件?API.php是我连接到网站数据库登录的一种方式。如果登录成功，它返回一个JSON对象。

            string sAddress = "http://hitsparkinteractive.com/api.php";
            // Get the hash
            string addrParams = "action=authenticate";
            addrParams += "&username=" + user;
            addrParams += "&password=" + pwd;
            WebRequest webRequest = WebRequest.Create(sAddress + "?" + addrParams);
            webRequest.Timeout = 3000;
            WebResponse webResponse = webRequest.GetResponse();
            JObject retJSON;
            retJSON = JObject.Parse(webResponse.ToString());

这是Visual Basic 6中的工作代码，使用了WinHTTPRequest。

Private Function AuthenticateUser(ByVal index As Long, ByVal Username As String, ByVal Password As String) As Long
     Dim HTTP As WinHttpRequest, sAddress As String, addrParams As String
     Dim JSONParser As Object, retJSON As String, ErrorCode As String, ErrorMsg As String
 On Error Resume Next
 sAddress = "http://hitsparkinteractive.com/api.php"
 addrParams = "action=authenticate"
 addrParams = addrParams & "&username=" & Username
 addrParams = addrParams & "&password=" & Password
 Set HTTP = New WinHttpRequest
 HTTP.Open "GET", sAddress & "?" & addrParams, False
 HTTP.SetTimeouts 250, 250, 250, 3000
 HTTP.Send
 retJSON = HTTP.ResponseText
 Set HTTP = Nothing
 ' Parse your JSON here.
 Set JSONParser = JSON.parse(retJSON) ' What is returned is Scripting.Dictionary object
 If Not JSONParser Is Nothing Then
    If JSONParser.Exists("error") Then  ' keys are case sensitive I believe
        ' We errored out
        ErrorCode = JSONParser.Item("error")
        Select Case ErrorCode
            Case "3"
                AuthenticateUser = 1
            Case Else
                AuthenticateUser = 2
        End Select
        ErrorMsg = JSONParser.Item("message")
        Call AlertMsg(index, ErrorMsg)
        Exit Function
    ElseIf JSONParser.Exists("hash") Then ' we got our hash, sucessfully authenticated
        TempPlayer(index).Hash = JSONParser.Item("hash")
        AuthenticateUser = 0
        Exit Function
    End If
Else
    AuthenticateUser = 3
    Call AlertMsg(index, "Request timed out, please try again.")
    Exit Function
End If
End Function

Answer 1

try this:

// Get the hash
string addrParams = string.Format("action=authenticate&username={0}&password={1}", user, pwd;)
string url = string.Concat(sAddress, "?", addrParams);
HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create(url);
webRequest.Timeout = 3000;
using (HttpWebResponse response = webRequest.GetResponse() as HttpWebResponse)
{
    if (response.StatusCode == HttpStatusCode.OK) {
        DataContractJsonSerializer jsonSerializer = new DataContractJsonSerializer(typeof(MyTypeJsonResponse));
        object objResponse = jsonSerializer.ReadObject(response.GetResponseStream());
        //json parsing response
        MyTypeJsonResponse response = objResponse as Response;
    }
}
[DataContract]
public class MyTypeJsonResponse
{
    [DataMember(Name = "myProperty2")]
    public string MyProperty1 { get; set; }
    [DataMember(Name = "myProperty2")]
    public string MyProperty2 { get; set; }
}

Answer 2

JSON实际上是一个字符串，表示序列化对象。

ToString返回一个对象的字符串表示形式——可能类似于System.Web.HttpResponse。

您需要的是响应的文本，您可以通过GetResponseStream获得。