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HomeBackend DevelopmentC++How Can I Deserialize JSON to a .NET Object Using Newtonsoft's LINQ to JSON?

How Can I Deserialize JSON to a .NET Object Using Newtonsoft's LINQ to JSON?

Linq to json using Newtonsoft's Linq to JSON to sequence JSON's back series to .NET objects

Analyze JSON as .NET object

Using the popular JSON library with NewTonsoft to sequence the JSON backup into .NET objects can be a simple task. First, make sure you have installed the library through Nuget.

Use linq to json

Instead of using JSONCONVERT.DESERIALIZEOBJECT, it is better to consider using Linq to JSON. This method allows to directly extract the value by querying the structure of the JSON data. The following is an example:

// 导入Newtonsoft.Json.Linq命名空间
using Newtonsoft.Json.Linq;

// 假设您已从之前的步骤获得了JSON字符串
string jsonString = @"{
  'page': 1,
  'albums': [
    {
      'name': 'Muse',
      'cover_image_url': 'http://image.kazaa.com/path/to/image.jpg',
      'artist_name': 'Muse'
    }
  ]
}";

// 将JSON字符串解析为JObject
JObject jObject = JObject.Parse(jsonString);

// 使用LINQ表达式查询JObject以提取特定值
string coverImageUrl = (string)jObject["albums"][0]["cover_image_url"];
In this code, we use Linq expressions to query jobject to extract the cover image of the album. The result is directly assigned to the .NET string without additional analysis.

Dynamic degradation

Another method is to use the Dynamic type of counter -serialization JSON. This allows more easily to handle unknown structures or if it needs flexibility.

// 导入Newtonsoft.Json命名空间
using Newtonsoft.Json;

// 将JSON反序列化为dynamic类型
dynamic results = JsonConvert.DeserializeObject<dynamic>(jsonString);

// 动态访问属性
string albumName = results.albums[0].name;
string artistName = results.albums[0].artist_name;
Close resources

When using flow and reader, be sure to close them to release resources and prevent memory leakage. The preferred method is to use the USING statement, as shown in the code example.

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