C# Json資料反序列化為Dictionary並根據關鍵字獲取指定值
阿新 • • 發佈：2019-02-07
Json資料： { "dataSet": { "header": { "returnCode": "0", "errorInfo": "HTTP請求錯誤", "version": "V1.0R010", "totalRows": "2000", "returnRows": "20" }, "fieldDefine": { "assetId": "string", "serverIdcId": "int", "inputTime": "datetime" }, "data": { "row": [ { "AssetId": "TCNS2006888", "ServerIdcId": "1", "InputTime": "2008-12-12" }, { "AssetId": "TCNS2006889", "ServerIdcId": "2", "InputTime": "2008-1-1" } ] } } } 問題：如何獲取header中的資料行,以便顯示在介面上? 效果圖：
將json資料轉成dictionary的程式碼： /// <summary> /// 將json資料反序列化為Dictionary /// </summary> /// <param name="jsonData">json資料</param> /// <returns></returns> private Dictionary<string, object> JsonToDictionary(string jsonData) { //例項化JavaScriptSerializer類的新例項 JavaScriptSerializer jss = new JavaScriptSerializer(); try { //將指定的 JSON 字串轉換為 Dictionary<string, object> 型別的物件 return jss.Deserialize<Dictionary<string, object>>(jsonData); } catch (Exception ex) { throw new Exception(ex.Message); } } 使用方法： private void button1_Click(object sender, EventArgs e) { //Json資料 string json = "{\"dataSet\":{\"header\":{\"returnCode\":\"0\",\"errorInfo\":\"HTTP請求錯誤\",\"version\":\"V1.0R010\",\"totalRows\":\"2000\",\"returnRows\":\"20\"},\"fieldDefine\":{\"assetId\":\"string\",\"serverIdcId\":\"int\",\"inputTime\":\"datetime\"},\"data\":{\"row\":[{\"AssetId\":\"TCNS2006888\",\"ServerIdcId\":\"1\",\"InputTime\":\"2008-12-12\"},{\"AssetId\":\"TCNS2006889\",\"ServerIdcId\":\"2\",\"InputTime\":\"2008-1-1\"}]}}}"; Dictionary<string, object> dic = JsonToDictionary(json);//將Json資料轉成dictionary格式 Dictionary<string, object> dataSet=(Dictionary<string, object>)dic["dataSet"]; //使用KeyValuePair遍歷資料 foreach (KeyValuePair<string, object> item in dataSet) { if (item.Key.ToString() == "header")//獲取header資料 { var subItem=(Dictionary<string,object>)item.Value; foreach (var str in subItem) { textBox1.AppendText(str.Key + ":" + str.Value+"\r\n");//顯示到介面 } break; } } }