JSON.net SelectToken() 在路径中带有单引号

Question

考虑这个 json:

{
    "farms": [
        {
            "fred's": {
                "cows": 5,
                "pigs": 2,
                "horses": "none"
            }
        }, {
            "old mcdonald's": {
                "cows": none,
                "pigs": 1,
                "horses": 3
            }
        }
    ]
}

单独使用单引号好像没有问题:

JObject j = new JObject();
JToken jt = j.SelectToken(farms.fred's);

但是，尝试同时使用单引号和空格时会发生错误。

使用这段代码:

JObject j = new JObject();
JToken jt = j.SelectToken(farms.old mcdonald's);

我遇到了这个错误:

JsonException: Unexpected character while parsing path

所以我做了一些搜索，发现带有空格的术语必须被包围:

[' ']

例子:

JObject j = new JObject();
JToken jt = j.SelectToken(farms.['old mcdonald's']);

但是，现在的错误是:

JsonException: Unexpected character while parsing path indexer: s

是否可以在 SelectToken 路径中同时包含空格和单引号？

Answer 1

好像是...

var x = @"{
    ""farms"": [
        {
            ""fred's"": {
                ""cows"": 5,
                ""pigs"": 2,
                ""horses"": ""none""
            }
        },
        {
            ""old mcdonald's"": {
                ""cows"": ""none"",
                ""pigs"": 1,
                ""horses"": 3
            }
        }
    ]
}";

var j = JObject.Parse(x);
var jobj = j.SelectToken("farms[1]['old mcdonald\\'s']") as JObject;
jobj.Properties().Select( p => p.Name + ": " + p.Value).Dump();

---

IEnumerable<String> (3 items)
* cows: none 
* pigs: 1 
* horses: 3