在vb.net中用jrock解析json

Question

我正在尝试解析从服务中返回的某个json。例如，它返回

      {
  "error" : 
  {
    "code" : 500, 
    "message" : "Error Executing Task. Error executing tool.", 
    "details" : []
  }
}

我所需要的就是消息字段中的文本。使用jayrock获取数据的简便方法是什么？我有：

 Dim request As HttpWebRequest
    Dim response As HttpWebResponse = Nothing
    Dim jarray As Jayrock.Json.JsonObject
request = DirectCast(WebRequest.Create(url), HttpWebRequest)
        response = DirectCast(request.GetResponse(), HttpWebResponse)

        Dim reader As JsonTextReader = New JsonTextReader((New StreamReader(response.GetResponseStream)))


        jarray = Jayrock.Json.Conversion.JsonConvert.Import(reader)

获取“消息”数据的最有效方法是什么？

Answer 1

我只能为自己说话，但我会这样写：

Dim cMessage As String = "{ ""error"" : { ""code"" : 500, " & _
                                """message"" : ""Error Executing Task. " & _
                                "Error executing tool.""," & _
                                """details"" : [] " & _
                                "}" & _
                                "}"

Dim objResponse As JsonObject


objResponse = CType(JsonConvert.Import(cMessage), JsonObject)

MsgBox( "Last response was: " + objResponse("error")("message") )

附言:别忘了导入Jayrock.Json和Jayrock.Json.Conversion