堆栈(Stack)就是栈
select OrderSn from ORDER_Tracking group by OrderSn having count(1)>=2
HttpClient httpclient = new HttpClient();
var ret = httpclient.GetAsync("https://www.baidu.com/");
var Content = ret.Result.Content.ReadAsStringAsync().Result;
UTF-8编码的文字可以在各国各种支持UTF-8字符集的浏览器上显示
string
json =
"
{\"Name\":\"zhu\",\"Age\":\"15\",\"A\":[{\"Aa\":\"aa\"},{\"Bb\":\"bb\"}]}
"
;
//
将JOSN转成Object
//
DeserializeObject<T> 你要转成什么样的目标类型,JOject|Jtoken|Model...
var
objectStr = JsonConvert.DeserializeObject<JObject>(json);
//
这个是JObject？
var
obj = JObject.Parse(json);
//
这个是JObject
var
NameValue = obj.Value<
string
>(
"
Name
"
);
var
NameSele = obj.SelectToken(
"
Name
"
,
false
);
//
将JSON转成对象
var
model = JToken.Parse(json).ToObject<Rootx>
();
//
将JSON转成对象
var
model2 = JsonConvert.DeserializeObject<Rootx>
(json);
//
将JSON转成Jtoken
JToken joken =
JToken.Parse(json);
//
将JSON转成Jtoken
var
jToken2 = JsonConvert.DeserializeObject<JToken>
(json);
//
获取JSON中指定的key的值
var
Age = jToken2.SelectToken(
"
Age
"
,
false
);
//
key有对应的Value
var
ww = jToken2.SelectToken(
"
ww
"
,
false
);
//
key值没有对应的Value ，就是false
var
JtokenA = jToken2.Value<JToken>(
"
A
"
);
//
hasValues JToken才有的属性 ！！！！！！
var
s =
JtokenA.HasValues;
//
SelectToken 侧重于取值
//
Value<T>("key") 侧重于把取出来的key值 再转换成<T>目标类型
//
获取List 方式1：SelectToken 方式2：Value<T>()
var
list = jToken2.SelectToken(
"
Name
"
,
false
).SelectToken(
"
order_info_list
"
,
false
);
var
lists = jToken2.Value<JToken>(
"
order_search
"
).Value<JToken>(
"
order_info_list
"
);
//
string json3 = "{\"ADDRESS_MAP\":{\"ADDRESS_LOCATION\":{\"type\":\"separator\",\"name\":\"Address\",\"value\":\"\",\"FieldID\":40},\"LOCATION\":{\"type\":\"locations\",\"name\":\"Location\",\"keyword\":{\"1\":\"LOCATION1\"},\"value\":{\"1\":\"United States\"},\"FieldID\":41},\"FLOOR_NUMBER\":{\"type\":\"number\",\"name\":\"Floor Number\",\"value\":\"0\",\"FieldID\":55},\"self\":{\"id\":\"2\",\"name\":\"Address Map\"}}}";
string
json3 =
"
{\"ADDRESS_MAP\": { \"ADDRESS_LOCATION\": null, \"LOCATION\": { \"type\": \"locations\", \"name\": \"Location\", \"keyword\": { \"1\": \"LOCATION1\" }, \"value\": { \"1\": \"United States\" }, \"FieldID\": 41 }, \"FLOOR_NUMBER\": { \"type\": \"number\", \"name\": \"Floor Number\", \"value\": \"0\", \"FieldID\": 55 }, \"self\": { \"id\": \"2\", \"name\": \"Address Map\" } } }
"
;
JToken jToken3
=
JToken.Parse(json3);
JObject AddressMap
= jToken3[
"
ADDRESS_MAP
"
].Value<JObject>
();
//
这里【ADDRESS_LOCATION】的value即使是null 值,也没报错
JObject AddressMap_Location = jToken3[
"
ADDRESS_MAP
"
][
"
ADDRESS_LOCATION
"
].Value<JObject>
();
//
这个Properties()属性集合,就是key值的集合,P.Name 就是具体的Key
List<
string
> keys = AddressMap.Properties().Select(p =>
p.Name).ToList();
foreach
(
string
k
in
keys)
Console.WriteLine(k);
string
str3 =
"
{\"Result\":{\"name\":\"zhu\"},\"Message\":\"折扣行的产品单位必需是空。\",\"ErrList\":[{\"XTLSH\":\"144115188078156755\",\"ErrMsg\":\"折扣行的产品单位必需是空。 \"}],\"SucessList\":[]}
"
;
//
转成JToken(JObject 基类)
var
objRet = JsonConvert.DeserializeObject<JToken>
(str3);
//
获取JSON里的xx键的值
string
v1 = objRet.Value<JToken>(
"
Result
"
).Value<
string
>(
"
name
"
);
var
v2 = objRet.SelectToken(
"
Result
"
,
false
).ToString();
Newtonsoft.Json.Linq.JObject jObject
=
Newtonsoft.Json.Linq.JObject.Parse(str3);
string
Result = jObject[
"
Result
"
].ToString();
Console.ReadLine();
catch
(Exception ex)
throw
ex;
string
x =
""
;
