使用JSON.NET获取JSON值的路径 [英] Get path of JSON value using JSON.NET

问题描述

我正在尝试查找JSON值的路径.考虑以下JSON:

I am trying to find a path of a JSON value. Consider the following JSON:

{
    "car": {
        "type": [{
            "sedan": {
                "make": "honda",
                "model": "civics"
            }
        },
        {
            "coupe": {
                "make": "ford",
                "model": "escort"
            }
        }]
    }
}

如何获取值"honda"的路径?我正在寻找类似这样的东西...

How can I get the path of the value "honda"? I'm looking to find something like this...

car_type_0_sedan_make_ 本田

car_type_0_sedan_make_honda

JSON.NET是否支持此功能?我看到有一个 JToken.Path 属性，但是当前不可用. http://json.codeplex.com/workitem/24136

Does JSON.NET support this? I see that there is a JToken.Path property but it is currently not available. http://json.codeplex.com/workitem/24136

推荐答案

更新为最新版本 Json.NET. Path属性已添加到版本5.0版本1 中的JToken中(4月7日，2013).

Update to the latest version of Json.NET. The Path property was added to JToken in version 5.0 release 1 (April 7, 2013).

这是一个测试程序，可用于验证其是否有效:

Here is a test program you can use to verify that it works:

class Program
{
    static void Main(string[] args)
    {
        string json = @"
        {
            ""car"": {
                ""type"": [{
                    ""sedan"": {
                        ""make"": ""honda"",
                        ""model"": ""civics""
                    }
                },
                {
                    ""coupe"": {
                        ""make"": ""ford"",
                        ""model"": ""escort""
                    }
                }]
            }
        }";

        JObject obj = JObject.Parse(json);
        JToken token = obj["car"]["type"][0]["sedan"]["make"];
        Console.WriteLine(token.Path + " -> " + token.ToString());
    }
}

输出:

car.type[0].sedan.make -> honda

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