Question

我有这个JSON数据

{
    "extensions": {
        "settings" : {
            "extension1": {
                "property1": "value 1",
                "property2": "value 2"
            }
        }
    }
}

我的目标是使用JSON.NET添加一个新的布尔属性，看起来像这样

{
    "extensions": {
        "settings" : {
            "extension1": {
                "property1": "value 1",
                "property2": "value 2",
                "bool_property": true
            }
        }
    }
}

我只有这个代码而且我遇到了AddAfterSelf和AddBeforeSelf

string pref = "path_of_the_preferences_file";
string _pref = string.empty;
using (StreamReader reader = new StreamReader(pref, Encoding.UTF8))
{
    _pref = reader.ReadToEnd();
}

// REFORMAT JSON.DATA
JObject json = JObject.Parse(_pref);
var extension1 = json["extensions"]["settings"]["extension1"];

如何插入新的布尔属性“bool_property”？

由于

Answer 1

JObject本质上是一本字典。只需获取要添加属性的对象的引用并添加它。

var propertyName = "bool_property";
var value = true;

var obj = JObject.Parse(json);
var extension1 = obj.SelectToken("extensions.settings.extension1") as JObject;
if (extension1 != null)
{
    extension1[propertyName] = value;
}

如果你的目标是.NET 4及更高版本，你知道json的结构和你想要添加的属性的名称，你可以在这里使用dynamic。

var value = true;

dynamic obj = JObject.Parse(json);
obj.extensions.settings.extension1.bool_value = value;

你甚至可以混搭。

var propertyName = "bool_property";
var value = true;

dynamic obj = JObject.Parse(json);
obj.extensions.settings.extension1[propertyName] = value;

Answer 2

反序列化您的JSON，添加属性并将其序列化为字符串。

dynamic sourceJson = JsonConvert.DeserializeObject(json, typeof(object));
sourceJson.extensions.settings.extension1.bool_property = false;
var modifiedJson = JsonConvert.SerializeObject(sourceJson, Formatting.Indented);

Answer 3

我明白了

string pref = "path_of_the_preferences_file";
string _pref = string.empty;
using (StreamReader reader = new StreamReader(pref, Encoding.UTF8))
{
    _pref = reader.ReadToEnd();
}

// REFORMAT JSON.DATA
JObject json = JObject.Parse(_pref);
var extension1 = json["extensions"]["settings"]["extension1"];

var a = extension1.Children();
JProperty cond_it = null;

foreach (var b in a)
{
    if (b.ToString().ToLower().Contains("cond_it"))
    {
        cond_it = (JProperty)b;

        break;
    }
}

if (cond_it != null)
{
    var b = cond_it.Value.SelectToken("location").Parent;
    b.AddAfterSelf(new JProperty("blacklist", true));
}

使用JSON.NET添加布尔属性

3 个答案: