Newtonsoft.Json C# Json序列化和反序列化工具的使用、类型方法大全
newtonsoft.json
newtonsoft.json 是.net平台操作json的工具,他的介绍就不多说了,笔者最近在弄接口,需要操作json。
以某个云计算平台的token为例,边操作边讲解。
json 转为 model
将 model 转为 json
将 linq 转为 json
linq 操作
另外附上 百度ai 文字识别 json 及其模型类
newtonsoft.json 将字符串转为对象,是根据类型对象名称进行的,大小写不分,但是名称要一致要,哪怕你的json只有一个
{ "a":1 }
你的对象
public class test { public int aa{get;set;} }
也是不能对应的。
有复杂层次的 json,可以使用 “类中类” 来映射,要注意 list<t>/array/arraylist的类型的使用。
json 转为 model
新建一个 json 文件,名字随意,例如 json1.json
把以下内容粘贴进去
{ "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" }
定义一个模型,文件名为 accesstokenmodel.cs
public class accesstokenmodel { public string refresh_token { get; set; } public string expires_in { get; set; }//: access token的有效期(秒为单位,一般为1个月) public string scope { get; set; } public string session_key { get; set; } public string access_token { get; set; }//: 要获取的access token public string session_secret { get; set; } }
打开 program.cs 文件
public static void main(string[] args) { filestream fs = new filestream(@"请修改成你的文件路径\json1.json", filemode.open); streamreader filestream = new streamreader(fs); string str = ""; string line; while ((line = filestream.readline()) != null) { str += line; }
//上面的代码没有意义,只是将json文件的内容加载到字符串中
jobject jobject = new jobject(); //新建 操作对象 accesstokenmodel a = jsonconvert.deserializeobject<accesstokenmodel>(str); console.writeline(a.access_token); //随意输出一个属性 console.readkey(); }
重点方法
jsonconvert.deserializeobject<要转化的模型类>("字符串对象");
之后可以很方便的把json文件的内容存放到数据库中。
集合
把json文件改成以下的样子
[{ "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(@"请修改成你的文件路径\json1.json", filemode.open); streamreader filestream = new streamreader(fs); string str = ""; string line; while ((line = filestream.readline()) != null) { str += line; } //上面的代码没有意义,只是将json文件的内容加载到字符串中 jobject jobject = new jobject(); //新建 操作对象 list<accesstokenmodel> a = jsonconvert.deserializeobject<list<accesstokenmodel>>(str); foreach (var i in a) { console.writeline(i.access_token); } console.readkey(); }
将model转为json
能够将模型对象转为 json。
继续使用上面的 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); //转为字符串 console.writeline(str); console.readkey(); }
重点方法
jsonconvert.serializeobject(a模型对象);
运行后可以看到控制台输出的是json字符串了,你可以继续把他放到json文件中,这里不再赘述。
将 linq 转为 json
下面这个是从官网直接copy的例子,jarray 是其框架提供的一种类型。
在控制台运行后会发现输出的字符是已经格式化的。
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
框架提供了对 jobject 对象的linq操作支持
using newtonsoft.json.linq;
之后你可以像操作数组、集合或者context一样方便。
命名空间、类型、方法大全
本来想翻译一下的,英语太差,算了。在常用的类型前面加粗吧
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 |
提供用于在.net 和 json之间互相转等操作的方法
|
|||
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序列化或反序列化过程中发生错误时引发的异常类型
|
|||
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.
|
|||
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.
|
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.
|
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.
|
图片
百度ai 识别文字,返回json结果, 名字随意.格式建议为 json,如果使用记事本保存,注意编码格式是 utf-8,因为c# string默认为utf8,不然会乱码。
{ "log_id": 3413661945235258919, "direction": 0, "words_result_num": 2, "words_result": [ { "vertexes_location": [ { "y": 81, "x": 51 }, { "y": 81, "x": 151 }, { "y": 103, "x": 151 }, { "y": 103, "x": 51 } ], "probability": { "variance": 0.0, "average": 0.999861, "min": 0.999627 }, "chars": [ { "char": "今", "location": { "width": 17, "top": 83, "left": 60, "height": 20 } }, { "char": "天", "location": { "width": 17, "top": 83, "left": 78, "height": 20 } }, { "char": "除", "location": { "width": 12, "top": 83, "left": 103, "height": 20 } }, { "char": "了", "location": { "width": 16, "top": 83, "left": 116, "height": 20 } }, { "char": "皮", "location": { "width": 13, "top": 83, "left": 140, "height": 20 } } ], "min_finegrained_vertexes_location": [ { "y": 81, "x": 51 }, { "y": 81, "x": 151 }, { "y": 103, "x": 151 }, { "y": 103, "x": 51 } ], "finegrained_vertexes_location": [ { "y": 81, "x": 51 }, { "y": 81, "x": 71 }, { "y": 81, "x": 90 }, { "y": 81, "x": 110 }, { "y": 81, "x": 129 }, { "y": 81, "x": 149 }, { "y": 81, "x": 151 }, { "y": 91, "x": 151 }, { "y": 100, "x": 151 }, { "y": 103, "x": 151 }, { "y": 103, "x": 132 }, { "y": 103, "x": 112 }, { "y": 103, "x": 93 }, { "y": 103, "x": 73 }, { "y": 103, "x": 54 }, { "y": 103, "x": 51 }, { "y": 93, "x": 51 }, { "y": 84, "x": 51 } ], "location": { "width": 102, "top": 81, "left": 51, "height": 24 }, "words": "今天除了皮" }, { "vertexes_location": [ { "y": 109, "x": 52 }, { "y": 109, "x": 152 }, { "y": 130, "x": 152 }, { "y": 130, "x": 52 } ], "probability": { "variance": 8e-05, "average": 0.9907, "min": 0.973259 }, "chars": [ { "char": "又", "location": { "width": 16, "top": 111, "left": 61, "height": 20 } }, { "char": "啥", "location": { "width": 12, "top": 111, "left": 85, "height": 20 } }, { "char": "也", "location": { "width": 16, "top": 111, "left": 98, "height": 20 } }, { "char": "没", "location": { "width": 15, "top": 111, "left": 123, "height": 20 } }, { "char": "干", "location": { "width": 13, "top": 111, "left": 141, "height": 20 } } ], "min_finegrained_vertexes_location": [ { "y": 109, "x": 52 }, { "y": 109, "x": 152 }, { "y": 130, "x": 152 }, { "y": 130, "x": 52 } ], "finegrained_vertexes_location": [ { "y": 109, "x": 52 }, { "y": 109, "x": 71 }, { "y": 109, "x": 91 }, { "y": 109, "x": 110 }, { "y": 109, "x": 129 }, { "y": 109, "x": 149 }, { "y": 109, "x": 152 }, { "y": 119, "x": 152 }, { "y": 129, "x": 152 }, { "y": 130, "x": 152 }, { "y": 130, "x": 133 }, { "y": 130, "x": 113 }, { "y": 130, "x": 94 }, { "y": 130, "x": 74 }, { "y": 130, "x": 55 }, { "y": 130, "x": 52 }, { "y": 121, "x": 52 }, { "y": 111, "x": 52 } ], "location": { "width": 102, "top": 109, "left": 52, "height": 22 }, "words": "又啥也没干" } ], "language": -1 }
对应的模型 ,将 cs 文件,名字 generalmodel.cs
/// <summary> /// 通用文字识别(含位置版)返回结果 /// </summary> public class generalmodel { /// <summary> /// 必选 /// 唯一的log id,用于问题定位 /// </summary> public long log_id { get; set; } /// <summary> /// 图像方向,当detect_direction=true时存在。 /// 非必选 ///- -1:未定义, ///- 0:正向, ///- 1: 逆时针90度, ///- 2:逆时针180度, ///- 3:逆时针270度 /// </summary> public int direction { get; set; } /// <summary> /// 必选 /// 识别结果数,表示words_result的元素个数 /// </summary> public int words_result_num { get; set; } /// <summary> /// 检测语言 默认值会返回 -1 /// </summary> public string language { get; set; } /// <summary> /// 定位和识别文字结果数组 /// </summary> public list<words_result> words_result { get; set; } public class words_result { /// <summary> /// 图片中文字段四个顶点位置(矩形范围) /// </summary> public list<xy> vertexes_location { get; set; } /// <summary> /// 可选 /// 行置信度信息;如果输入参数 probability = true 则输出 /// </summary> public probability probability { get; set; } /// <summary> /// 每个字 /// </summary> public list<chars> chars { get; set; } /// <summary> /// 最小细粒度顶点坐标 /// </summary> public list<xy> min_finegrained_vertexes_location { get; set; } /// <summary> /// 细粒度顶点坐标,多边形 /// </summary> public list<xy> finegrained_vertexes_location { get; set; } /// <summary> /// 文字在图片中的相对位置 /// </summary> public location location { get; set; } /// <summary> /// 识别出的文字 /// </summary> public string words { get; set; } /// <summary> /// 坐标 /// </summary> public class xy { public int x { get; set; } public int y { get; set; } } /// <summary> /// 行置信度 /// </summary> public class probability { /// <summary> /// 行置信度平均值方差 /// </summary> public double variance { get; set; } /// <summary> /// 行置信度平均值 /// </summary> public double average { get; set; } /// <summary> /// 行置信度最小值 /// </summary> public double min { get; set; } } /// <summary> /// 单个文字 /// </summary> public class chars { /// <summary> /// 识别的单个文字 /// </summary> public char char { get; set; } /// <summary> /// 该文字范围(矩形) /// </summary> public location location { get; set; } } } public class location { public int left { get; set; } public int top { get; set; } public int width { get; set; } public int height { get; set; } } } }
可用控制台进行检验
static void main(string[] args) { streamreader streamreader = new streamreader(system.io.file.openread(@"json文件位置")); string str = ""; string jsonstr; while ((jsonstr = streamreader.readline()) != null) { str += jsonstr; } generalmodel generalmodel = jsonconvert.deserializeobject<generalmodel>(str); console.writeline("图片id:" + generalmodel.log_id); console.writeline("图像方向:" + generalmodel.direction); console.writeline("检测语言为:" + generalmodel.language); console.writeline("有几个结果:" + generalmodel.words_result_num); foreach (var item in generalmodel.words_result) { console.writeline("识别结果:" + encoding.utf8.getstring(encoding.utf8.getbytes(item.words))); foreach (var itemi in item.vertexes_location) { console.writeline("{x:" + itemi.x + ";y:" + itemi.y + "}"); } console.writeline("probability:可信度:" + "行置信度平均值" + item.probability.average + ";行置信度平均值方差:" + item.probability.variance + ";行置信度平均值最小值:" + item.probability.min); foreach (var itemi in item.chars) { console.writeline(itemi.char); console.writeline("位置: left:" + itemi.location.left + "; height: " + itemi.location.height + "top: " + itemi.location.top + "; width: " + itemi.location.width); } } console.readkey();
上一篇: AMD游戏机处理器Gonzalo曝光:或是Zen2 CPU+Navi GPU
下一篇: 跟闺密小聚