獲取Json中特定的值

 

假如我們得到了一個json的數據：json===》   {"Head":{"TransCode":"X1009","TransId":"20190514145005iQXk"},"Body":{"OrderSN":"95131406006","WHSE":"aaaaa","SNs":[{"SN":"HCMPFD000621"},{"SN":"1212122"}]}}

類似這樣。我們要取出來里面特定的值，而且，SNs還是一個集合。

方法如下：

string OrderSn = json["Body"]["OrderSN"].ToString();
string WHSE = json["Body"]["WHSE"].ToString();
string SNs = json["Body"]["SNs"].ToString();

SNs是一個集合，怎么取出來呢：

將json字符串解析為JToken,JObject是JToken的父類，直接使用JToken比較好用

 dynamic Sns =JToken.Parse(SNs) as dynamic

 

  for (int i = 0; i < Sns.Count; i++)//獲取備注里的SN
   {

     if (Sns[i].SN.ToString() != "")
      {
        str += Sns[i].SN.ToString() + ",";
      }
    }

 

　這樣子就可以循環出來里面的值了。

 HttpWebResponse httpWebResponse = (HttpWebResponse)httpWebRequest.GetResponse();
                string response = string.Empty;
                using (StreamReader reader = new StreamReader(httpWebResponse.GetResponseStream()))
                    response = reader.ReadToEnd(); 

                var j = JObject.Parse(response);
                string shop_name = j["Success"]["items"]["item"][0]["shop_name"].ToString();//獨一味日化旗艦店、、、一層層的層級關系

 

{
	"Success": {
		"total_results": "1",
		"items": {
			"item": [{				
				"shop_name": "獨一味日化旗艦店",				
				"serial_num": "",
				"order_channel": "直營網店",			
				"updatetime": "",
				"總數量": "3739",
				"maxrowver": "",
				"tid_item": [{
					"storage_id": "1",
					"tid": "S17fdgfgfg0349",
					"pro_detail_code": "191",					
					"book_inventory": "-5.000",					
					"store_location": "",
					"pro_type": "原始產品"
				}, {
					"storage_id": "1",
					"tid": "S1712220000349",
					"pro_detail_code": "152",					
					"book_inventory": "-4.000",					
					"store_location": "",
					"pro_type": "原始產品"
				}]
			}]
		}
	}
}

　　上面這個是其他的廠商返回的一個Json格式的數據，現在可以是Json嵌套的還挺多，其中的一個項次還有數組，現在就是把這些數據撈出來存下來。

                var j = JObject.Parse(response);
                 //這個就是主干的值
                string shop_name = j["Success"]["items"]["item"][0]["shop_name"].ToString();//獨一味日化旗艦店
                string tid_item = j["Success"]["items"]["item"][0]["tid_item"].ToString();
                //下面是獲取數組的名細可以取出來值
                JArray jArray = JArray.Parse(tid_item);
                for (int i = 0; i < jArray.Count; i++)
                {
                    JObject jdata = (JObject)jArray[i];
                    string pro_detail_code = jdata["pro_detail_code"].ToString();
                }

　　

  //將數據動態插入到數組中去               
 JArray jArray = JArray.Parse(tid_item);
                JArray arr = new JArray();              
                for (int i = 0; i < jArray.Count; i++)
                {
                    JObject obj = new JObject();
                    JObject jdata = (JObject)jArray[i];
                    obj["linenum"] = jdata["cost_price"].ToString();
                    obj["sku"] = jdata["sell_price"].ToString();
                    obj["qty"] = jdata["original_price"].ToString();
                    obj["inventoryname"] = jdata["sys_price"].ToString();
                    obj["price"] = jdata["product_name"].ToString();
                    arr.Add(obj);
                }
                var rss = new JObject
                    {
                        {"Head",new JObject
                            {
                                {"TransCode","X1009" },
                                {"TransId",1212}
                            }
                        },
                        { "Body", new JObject
                            {
                                {"orderno", "orderno" },
                                {"billto","billto"},
                                {"shipto", "shipto"},
                                {"workid", "workid"},
                                {"tocity", "tocity"},
                                {"Address", "Address"},
                                {"Contact", "Contact"},
                                {"Tel", "Tel"},
                                {"detail", arr }
                            }
                        }
                     };