Newtonsoft.Json Json工具的使用、類型方法大全

阿新 • • 發佈：2019-02-06

source typename fas lex object base 使用 art 命名空間

Newtonsoft.Json

Newtonsoft.Json 是.Net平臺操作Json的工具，他的介紹就不多說了，筆者最近在弄接口，需要操作Json。

以某個雲計算平臺的Token為例，邊操作邊講解。

Json 轉為 Model

將 Model 轉為 Json

將 LINQ 轉為 JSON

Linq 操作

命名空間、類型、方法大全

Json 轉為 Model

新建一個 Json 文件，名字隨意，例如 json1.json

把以下內容粘貼進去

{
  "refresh_token": "25.ea2f85ebd48df85fe5400000.18640.282335-15533349",
   
"expires_in": 2592010,
  "session_key": "9mzdWr3n8ncMeDgX8zjhkhlW8khb5cdZtPevPbPwQGBg==",
  "access_token": "24.ac0ca9fakhlkyhl552017858.282335-15533349",
  "scope": "audio_voice_assistant_get audio_tts_post public vis-ocr_ocr nlp_simnet nlp_wclassify_watermark brain_ocr_scope vis-classify_car brain_gif_antiporn brain_ocr_general brain_ocr_general_basic brain_ocr_generer vis-classify_animal brain_politician brain_unit_utterance brain_imgquality_general brain_nlp_simnet brain_nlp_depparser vis-classify_plant brain_solution brain_ocr_plate_number brain_nlp_wordembedding brain_nlp_dnnlm_cn_legacy brain_nlp_simnet_legacy brain_nlp_commain_animal_classify brain_plant_classify brain_solution_iocr brain_realtime_product brain_nlp_lexer_custom brain_kgbody_analysis brain_body_attr brain_ocr_vat_invoice brain_advanced_general_classify brain_numbers brain_body_number vis-faceverify_FACE_auth_sessionkey smartapp_swanid_verify smartapp_opensource_openapi 
",
  "session_secret": "2ca66d464545c77a4767f709873be4"
}

定義一個模型，文件名為 AccessTokenModel.cs

    public class AccessTokenModel
    {
        public string refresh_token { get; set; }
        public string expires_in { get; set; }//： Access Token的有效期(秒為單位，一般為1個月)
        public string scope { get; set; }
         
public string session_key { get; set; }
        public string access_token { get; set; }//： 要獲取的Access Token
        public string session_secret { get; set; }
    }

打開 Program.cs 文件

            public static void Main(string[] args)
            {
                FileStream fs = new FileStream(@"請修改成你的文件路徑\json1.json", FileMode.Open);
                StreamReader fileStream = new StreamReader(fs);
                string str = "";
                string line;
                while ((line = fileStream.ReadLine()) != null)
                {
                    str += line;
                }
　　　　　　　　　　//上面的代碼沒有意義，只是將Json文件的內容加載到字符串中
　　　　　　　　　　
                JObject jObject = new JObject();　　　　　　　　//新建 操作對象
                AccessTokenModel a = JsonConvert.DeserializeObject<AccessTokenModel>(str);

                Console.WriteLine(a.access_token);　　　　//隨意輸出一個屬性
                Console.ReadKey();
            }

重點方法

JsonConvert.DeserializeObject<要轉化的模型類>("字符串對象");

之後可以很方便的把Json文件的內容存放到數據庫中。

集合

把Json文件改成以下的樣子

[{
  "refresh_token": "25.ea2f85ebd48df85fe5400000.18640.282335-15533349",
  "expires_in": 2592010,
  "session_key": "9mzdWr3n8ncMeDgX8zjhkhlW8khb5cdZtPevPbPwQGBg==",
  "access_token": "24.ac0ca9fakhlkyhl552017858.282335-15533349",
  "scope": "audio_voice_assistant_get audio_tts_post public vis-ocr_ocr nlp_simnet nlp_wclassify_watermark brain_ocr_scope vis-classify_car brain_gif_antiporn brain_ocr_general brain_ocr_general_basic brain_ocr_generer vis-classify_animal brain_politician brain_unit_utterance brain_imgquality_general brain_nlp_simnet brain_nlp_depparser vis-classify_plant brain_solution brain_ocr_plate_number brain_nlp_wordembedding brain_nlp_dnnlm_cn_legacy brain_nlp_simnet_legacy brain_nlp_commain_animal_classify brain_plant_classify brain_solution_iocr brain_realtime_product brain_nlp_lexer_custom brain_kgbody_analysis brain_body_attr brain_ocr_vat_invoice brain_advanced_general_classify brain_numbers brain_body_number vis-faceverify_FACE_auth_sessionkey smartapp_swanid_verify smartapp_opensource_openapi",
  "session_secret": "2ca66d464545c77a4767f709873be4"
},
{
  "refresh_token": "25.ea2f85ebd48df85fe5400000.18640.282335-15533349",
  "expires_in": 2592010,
  "session_key": "9mzdWr3n8ncMeDgX8zjhkhlW8khb5cdZtPevPbPwQGBg==",
  "access_token": "24.ac0ca9fakhlkyhl552017858.282335-15533349",
  "scope": "audio_voice_assistant_get audio_tts_post public vis-ocr_ocr nlp_simnet nlp_wclassify_watermark brain_ocr_scope vis-classify_car brain_gif_antiporn brain_ocr_general brain_ocr_general_basic brain_ocr_generer vis-classify_animal brain_politician brain_unit_utterance brain_imgquality_general brain_nlp_simnet brain_nlp_depparser vis-classify_plant brain_solution brain_ocr_plate_number brain_nlp_wordembedding brain_nlp_dnnlm_cn_legacy brain_nlp_simnet_legacy brain_nlp_commain_animal_classify brain_plant_classify brain_solution_iocr brain_realtime_product brain_nlp_lexer_custom brain_kgbody_analysis brain_body_attr brain_ocr_vat_invoice brain_advanced_general_classify brain_numbers brain_body_number vis-faceverify_FACE_auth_sessionkey smartapp_swanid_verify smartapp_opensource_openapi",
  "session_secret": "2ca66d464545c77a4767f709873be4"
}
]

            public static void Main(string[] args)
            {
                FileStream fs = new FileStream(@"請修改成你的文件路徑\json1.json", FileMode.Open);
                StreamReader fileStream = new StreamReader(fs);
                string str = "";
                string line;
                while ((line = fileStream.ReadLine()) != null)
                {
                    str += line;
                }
                //上面的代碼沒有意義，只是將Json文件的內容加載到字符串中

                JObject jObject = new JObject();　　　　　　　　//新建 操作對象
                List<AccessTokenModel> a = JsonConvert.DeserializeObject<List<AccessTokenModel>>(str);
                foreach (var i in a)
                {
                    Console.WriteLine(i.access_token);
                }

                Console.ReadKey();
            }

將Model轉為Json

能夠將模型對象轉為 Json。

繼續使用上面的 AccessTokenModel.cs 文件，

            public static void Main(string[] args)
            {
                AccessTokenModel accessTokenModel = new AccessTokenModel();
                accessTokenModel.access_token = "test1";
                accessTokenModel.expires_in = "test2";
                accessTokenModel.refresh_token = "test3";
                accessTokenModel.scope = "test4";
                accessTokenModel.session_key = "test5";
                accessTokenModel.session_secret = "test6";

                JObject jObject = new JObject();
                string str = JsonConvert.SerializeObject(accessTokenModel);　　　　//轉為字符串

                Console.WriteLine(str);
                Console.ReadKey();
            }

重點方法

JsonConvert.SerializeObject(a模型對象)；

運行後可以看到控制臺輸出的是Json字符串了，你可以繼續把他放到Json文件中，這裏不再贅述。

將 LINQ 轉為 JSON

下面這個是從官網直接copy的例子，Jarray 是其框架提供的一種類型。

在控制臺運行後會發現輸出的字符是已經格式化的。

            public static void Main(string[] args)
            {
                JArray array = new JArray();
                array.Add("Manual text");
                array.Add(new DateTime(2000, 5, 23));

                JObject o = new JObject();
                o["MyArray"] = array;

                string json = o.ToString();
                // {
                //   "MyArray": [
                //     "Manual text",
                //     "2000-05-23T00:00:00"
                //   ]
                // }

                Console.WriteLine(json);
                Console.ReadKey();

Linq 操作

框架提供了對 Jobject 對象的Linq操作支持

using Newtonsoft.Json.Linq;

之後你可以像操作數組、集合或者Context一樣方便。

命名空間、類型、方法大全

技術分享圖片

本來想翻譯一下的，英語太差，算了。在常用的類型前面加粗吧

Classes

Class

Description

DefaultJsonNameTable

The default JSON name table implementation.

JsonArrayAttribute

Instructs the JsonSerializer how to serialize the collection.

JsonConstructorAttribute

Instructs the JsonSerializer to use the specified constructor when deserializing that object.

JsonContainerAttribute

Instructs the JsonSerializer how to serialize the object.

JsonConvert

提供用於在.NET 和 Json之間互相轉等操作的方法

JsonConverter

Converts an object to and from JSON.

JsonConverter<T>

Converts an object to and from JSON.

JsonConverterAttribute

Instructs the JsonSerializer to use the specified JsonConverter when serializing the member or class.

JsonConverterCollection

Represents a collection of JsonConverter.

JsonDictionaryAttribute

Instructs the JsonSerializer how to serialize the collection.

JsonException

JSON序列化或反序列化過程中發生錯誤時引發的異常類型

JsonExtensionDataAttribute

Instructs the JsonSerializer to deserialize properties with no matching class member into the specified collection and write values during serialization.

JsonIgnoreAttribute

Instructs the JsonSerializer not to serialize the public field or public read/write property value.

JsonNameTable

Base class for a table of atomized string objects.

JsonObjectAttribute

Instructs the JsonSerializer how to serialize the object.

JsonPropertyAttribute

Instructs the JsonSerializer to always serialize the member with the specified name.

JsonReader

Represents a reader that provides fast, non-cached, forward-only access to serialized JSON data.

JsonReaderException

The exception thrown when an error occurs while reading JSON text.

JsonRequiredAttribute

Instructs the JsonSerializer to always serialize the member, and to require that the member has a value.

JsonSerializationException

The exception thrown when an error occurs during JSON serialization or deserialization.

JsonSerializer

Serializes and deserializes objects into and from the JSON format. The JsonSerializer enables you to control how objects are encoded into JSON.

JsonSerializerSettings

Specifies the settings on a JsonSerializer object.

JsonTextReader

Represents a reader that provides fast, non-cached, forward-only access to JSON text data.

JsonTextWriter

Represents a writer that provides a fast, non-cached, forward-only way of generating JSON data.

JsonValidatingReader

Obsolete.

Represents a reader that provides JsonSchema validation.

Caution
JSON Schema validation has been moved to its own package. See https://www.newtonsoft.com/jsonschemafor more details.

JsonWriter

Represents a writer that provides a fast, non-cached, forward-only way of generating JSON data.

JsonWriterException

The exception thrown when an error occurs while writing JSON text.

Interfaces

	Interface	Description
	IArrayPool<T>	Provides an interface for using pooled arrays.
	IJsonLineInfo	Provides an interface to enable a class to return line and position information.

Enumerations

	Enumeration	Description
	ConstructorHandling	Specifies how constructors are used when initializing objects during deserialization by the JsonSerializer.
	DateFormatHandling	Specifies how dates are formatted when writing JSON text.
	DateParseHandling	Specifies how date formatted strings, e.g. "\/Date(1198908717056)\/" and "2012-03-21T05:40Z", are parsed when reading JSON text.
	DateTimeZoneHandling	Specifies how to treat the time value when converting between string and DateTime.
	DefaultValueHandling	Specifies default value handling options for the JsonSerializer.
	FloatFormatHandling	Specifies float format handling options when writing special floating point numbers, e.g. NaN,PositiveInfinity and NegativeInfinity with JsonWriter.
	FloatParseHandling	Specifies how floating point numbers, e.g. 1.0 and 9.9, are parsed when reading JSON text.
	Formatting	Specifies formatting options for the JsonTextWriter.
	JsonReader.State	Specifies the state of the reader.
	JsonToken	Specifies the type of JSON token.
	MemberSerialization	Specifies the member serialization options for the JsonSerializer.
	MetadataPropertyHandling	Specifies metadata property handling options for the JsonSerializer.
	MissingMemberHandling	Specifies missing member handling options for the JsonSerializer.
	NullValueHandling	Specifies null value handling options for the JsonSerializer.
	ObjectCreationHandling	Specifies how object creation is handled by the JsonSerializer.
	PreserveReferencesHandling	Specifies reference handling options for the JsonSerializer. Note that references cannot be preserved when a value is set via a non-default constructor such as types that implement ISerializable.
	ReferenceLoopHandling	Specifies reference loop handling options for the JsonSerializer.
	Required	Indicating whether a property is required.
	StringEscapeHandling	Specifies how strings are escaped when writing JSON text.
	TypeNameAssemblyFormatHandling	Indicates the method that will be used during deserialization for locating and loading assemblies.
	TypeNameHandling	Specifies type name handling options for the JsonSerializer.
	WriteState	Specifies the state of the JsonWriter.

Newtonsoft.Json Json工具的使用、類型方法大全

source typename fas lex object base 使用 art 命名空間 Newtonsoft.Json Newtonsoft.Json 是.Net平臺操作Json的工具，他的介紹就不多說了，筆者最近在弄接口，需要操作Json。以某個雲計算平臺的T

Newtonsoft.Json Json工具的使用、類型方法大全

Newtonsoft.Json

Json 轉為 Model

將 Model 轉為 Json

將 LINQ 轉為 JSON

Linq 操作

命名空間、類型、方法大全

Json 轉為 Model

集合

將Model轉為Json

將 LINQ 轉為 JSON

Linq 操作

命名空間、類型、方法大全

Newtonsoft.Json Json工具的使用、類型方法大全

c#中的自定義泛型類、泛型方法和泛型接口

java泛型（泛型介面、泛型類、泛型方法）

POST請求模擬工具、JSON請求工具、http介面測試、post介面測試

C#泛型入門學習泛型類、泛型集合、泛型方法、泛型約束、泛型委託

Java 之路 (十五) -- 泛型上（泛型類、泛型方法、有界型別引數、泛型與繼承、型別推斷）

數據類型方法

Python數據類型方法簡介一————字符串的用法詳解

php的註釋、變量、類型、常量、運算符、比較符、條件語句；

【好文推薦】公司管理系統含義、類型、功能及價格的詳細分析！

JS判斷數據類型方法

Oracle修改字段類型方法小技巧

String類型方法

java基礎之變量和常量、類型轉換

java泛型的一些知識點：Java泛型--泛型應用--泛型接口、泛型方法、泛型數組、泛型嵌套

面向對象第一次練手-------ArrayList集合、類、對象、冒泡排序、類型轉換

Go筆記-結構、類型、常量

類的屬性、類的方法、類的內置方法

類的繼承、類的屬性總結、類的方法總結

三天一小節需要熟練掌握的類型方法

Newtonsoft.Json Json工具的使用、類型方法大全

Newtonsoft.Json

Json 轉為 Model

將 Model 轉為 Json

將 LINQ 轉為 JSON

Linq 操作

命名空間、類型、方法大全

Json 轉為 Model

集合

將Model轉為Json

將 LINQ 轉為 JSON

Linq 操作

命名空間、類型、方法大全

相關推薦