c#Json库（.NET2.0）_c#json库资源-CSDN文库

共3个文件

pdb：1个

xml：1个

dll：1个

需积分: 50 102 浏览量 2018-09-04 23:44:28 上传评论 1 收藏 280KB RAR 举报

JSON（JavaScript Object Notation）是一种轻量级的数据交换格式，被广泛用于Web应用程序之间的数据传输。在.NET框架中，C#提供了多种库来处理JSON序列化与反序列化，其中包括了针对.NET 2.0版本的Json库。本文将详细探讨如何在C# .NET 2.0环境下使用JSON库，以及相关的编程实践。 1. **Newtonsoft.Json (Json.NET)**：虽然此压缩包未明确指出具体库，但在.NET 2.0时代，最常用的第三方JSON库是Newtonsoft.Json，也被称为Json.NET。它是.NET平台上功能最全面、性能最优的JSON库之一。要使用它，首先需要解压缩提供的`net20`文件，里面可能包含了 Newtonsoft.Json 的 .dll 文件。然后，在你的C#项目中，右键点击“引用”并选择“添加引用”，将找到的Json.NET库添加进来。 2. **序列化与反序列化**：Json.NET 提供了两个主要方法，`JsonConvert.SerializeObject()` 和 `JsonConvert.DeserializeObject()`，用于对象到JSON字符串的转换以及JSON字符串到对象的还原。例如，你可以将一个C#类实例转换为JSON： ```csharp public class Person { public string Name { get; set; } public int Age { get; set; } } Person person = new Person() { Name = "张三", Age = 30 }; string json = JsonConvert.SerializeObject(person); ``` 反序列化时，将JSON字符串转换回对象： ```csharp string jsonStr = "{\"Name\":\"张三\",\"Age\":30}"; Person deserializedPerson = JsonConvert.DeserializeObject<Person>(jsonStr); ``` 3. **动态类型与JToken**：Json.NET还提供了动态类型 `JObject` 和 `JToken`，它们可以用来解析任意的JSON数据而无需预先定义类结构。例如： ```csharp string jsonStr = "{\"Name\":\"张三\",\"Age\":30}"; JObject obj = JObject.Parse(jsonStr); string name = (string)obj["Name"]; int age = (int)obj["Age"]; ``` 4. **自定义序列化选项**：Json.NET允许你定制序列化过程，例如忽略空值、设置日期格式等。例如，创建一个`JsonSerializerSettings`实例并指定日期格式： ```csharp var settings = new JsonSerializerSettings { NullValueHandling = NullValueHandling.Ignore, DateFormatString = "yyyy-MM-dd" }; string json = JsonConvert.SerializeObject(person, settings); ``` 5. **LINQ to JSON**：Json.NET的另一个强大特性是支持LINQ查询，允许你像操作XML一样操作JSON数据。例如，查找年龄大于30的人： ```csharp JArray people = JArray.Parse("[{\"Name\":\"张三\",\"Age\":30}, {\"Name\":\"李四\",\"Age\":25}]"); var adults = from p in people where (int)p["Age"] > 30 select p; ``` 6. **Web服务与JSON**：在.NET 2.0中，你可以使用ASP.NET Web Services（ASMX）与JSON进行交互。通过添加 `[ScriptService]` 特性到服务类，并配置 `WebMethod` 使用JSON返回类型，即可实现JSON响应。 7. **性能优化**：在处理大量JSON数据时，可以使用`JsonTextReader`和`JsonTextWriter`进行流式处理，以减少内存占用。 C#在.NET 2.0环境中使用Json.NET库能高效地处理JSON数据，无论是序列化、反序列化，还是解析、查询，都有丰富的API支持。在实际开发中，理解并掌握这些知识点，将有助于提升JSON操作的灵活性和效率。

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net20.rar （3个子文件）

net20

Newtonsoft.Json.pdb 208KB

Newtonsoft.Json.dll 501KB

Newtonsoft.Json.xml 569KB

<?xml version="1.0"?> <doc> <assembly> <name>Newtonsoft.Json</name> </assembly> <members> <member name="T:Newtonsoft.Json.Bson.BsonObjectId"> <summary> Represents a BSON Oid (object id). </summary> </member> <member name="P:Newtonsoft.Json.Bson.BsonObjectId.Value"> <summary> Gets or sets the value of the Oid. </summary> <value>The value of the Oid.</value> </member> <member name="M:Newtonsoft.Json.Bson.BsonObjectId.#ctor(System.Byte[])"> <summary> Initializes a new instance of the <see cref="T:Newtonsoft.Json.Bson.BsonObjectId"/> class. </summary> <param name="value">The Oid value.</param> </member> <member name="T:Newtonsoft.Json.Bson.BsonReader"> <summary> Represents a reader that provides fast, non-cached, forward-only access to serialized BSON data. </summary> </member> <member name="P:Newtonsoft.Json.Bson.BsonReader.JsonNet35BinaryCompatibility"> <summary> Gets or sets a value indicating whether binary data reading should be compatible with incorrect Json.NET 3.5 written binary. </summary> <value> <c>true</c> if binary data reading will be compatible with incorrect Json.NET 3.5 written binary; otherwise, <c>false</c>. </value> </member> <member name="P:Newtonsoft.Json.Bson.BsonReader.ReadRootValueAsArray"> <summary> Gets or sets a value indicating whether the root object will be read as a JSON array. </summary> <value> <c>true</c> if the root object will be read as a JSON array; otherwise, <c>false</c>. </value> </member> <member name="P:Newtonsoft.Json.Bson.BsonReader.DateTimeKindHandling"> <summary> Gets or sets the <see cref="T:System.DateTimeKind" /> used when reading <see cref="T:System.DateTime"/> values from BSON. </summary> <value>The <see cref="T:System.DateTimeKind" /> used when reading <see cref="T:System.DateTime"/> values from BSON.</value> </member> <member name="M:Newtonsoft.Json.Bson.BsonReader.#ctor(System.IO.Stream)"> <summary> Initializes a new instance of the <see cref="T:Newtonsoft.Json.Bson.BsonReader"/> class. </summary> <param name="stream">The <see cref="T:System.IO.Stream"/> containing the BSON data to read.</param> </member> <member name="M:Newtonsoft.Json.Bson.BsonReader.#ctor(System.IO.BinaryReader)"> <summary> Initializes a new instance of the <see cref="T:Newtonsoft.Json.Bson.BsonReader"/> class. </summary> <param name="reader">The <see cref="T:System.IO.BinaryReader"/> containing the BSON data to read.</param> </member> <member name="M:Newtonsoft.Json.Bson.BsonReader.#ctor(System.IO.Stream,System.Boolean,System.DateTimeKind)"> <summary> Initializes a new instance of the <see cref="T:Newtonsoft.Json.Bson.BsonReader"/> class. </summary> <param name="stream">The <see cref="T:System.IO.Stream"/> containing the BSON data to read.</param> <param name="readRootValueAsArray">if set to <c>true</c> the root object will be read as a JSON array.</param> <param name="dateTimeKindHandling">The <see cref="T:System.DateTimeKind" /> used when reading <see cref="T:System.DateTime"/> values from BSON.</param> </member> <member name="M:Newtonsoft.Json.Bson.BsonReader.#ctor(System.IO.BinaryReader,System.Boolean,System.DateTimeKind)"> <summary> Initializes a new instance of the <see cref="T:Newtonsoft.Json.Bson.BsonReader"/> class. </summary> <param name="reader">The <see cref="T:System.IO.BinaryReader"/> containing the BSON data to read.</param> <param name="readRootValueAsArray">if set to <c>true</c> the root object will be read as a JSON array.</param> <param name="dateTimeKindHandling">The <see cref="T:System.DateTimeKind" /> used when reading <see cref="T:System.DateTime"/> values from BSON.</param> </member> <member name="M:Newtonsoft.Json.Bson.BsonReader.Read"> <summary> Reads the next JSON token from the underlying <see cref="T:System.IO.Stream"/>. </summary> <returns> <c>true</c> if the next token was read successfully; <c>false</c> if there are no more tokens to read. </returns> </member> <member name="M:Newtonsoft.Json.Bson.BsonReader.Close"> <summary> Changes the reader's state to <see cref="F:Newtonsoft.Json.JsonReader.State.Closed"/>. If <see cref="P:Newtonsoft.Json.JsonReader.CloseInput"/> is set to <c>true</c>, the underlying <see cref="T:System.IO.Stream"/> is also closed. </summary> </member> <member name="T:Newtonsoft.Json.Bson.BsonWriter"> <summary> Represents a writer that provides a fast, non-cached, forward-only way of generating BSON data. </summary> </member> <member name="P:Newtonsoft.Json.Bson.BsonWriter.DateTimeKindHandling"> <summary> Gets or sets the <see cref="T:System.DateTimeKind" /> used when writing <see cref="T:System.DateTime"/> values to BSON. When set to <see cref="F:System.DateTimeKind.Unspecified" /> no conversion will occur. </summary> <value>The <see cref="T:System.DateTimeKind" /> used when writing <see cref="T:System.DateTime"/> values to BSON.</value> </member> <member name="M:Newtonsoft.Json.Bson.BsonWriter.#ctor(System.IO.Stream)"> <summary> Initializes a new instance of the <see cref="T:Newtonsoft.Json.Bson.BsonWriter"/> class. </summary> <param name="stream">The <see cref="T:System.IO.Stream"/> to write to.</param> </member> <member name="M:Newtonsoft.Json.Bson.BsonWriter.#ctor(System.IO.BinaryWriter)"> <summary> Initializes a new instance of the <see cref="T:Newtonsoft.Json.Bson.BsonWriter"/> class. </summary> <param name="writer">The <see cref="T:System.IO.BinaryWriter"/> to write to.</param> </member> <member name="M:Newtonsoft.Json.Bson.BsonWriter.Flush"> <summary> Flushes whatever is in the buffer to the underlying <see cref="T:System.IO.Stream"/> and also flushes the underlying stream. </summary> </member> <member name="M:Newtonsoft.Json.Bson.BsonWriter.WriteEnd(Newtonsoft.Json.JsonToken)"> <summary> Writes the end. </summary> <param name="token">The token.</param> </member> <member name="M:Newtonsoft.Json.Bson.BsonWriter.WriteComment(System.String)"> <summary> Writes a comment <c>/*...*/</c> containing the specified text. </summary> <param name="text">Text to place inside the comment.</param> </member> <member name="M:Newtonsoft.Json.Bson.BsonWriter.WriteStartConstructor(System.String)"> <summary> Writes the start of a constructor with the given name. </summary> <param name="name">The name of the constructor.</param> </member> <member name="M:Newtonsoft.Json.Bson.BsonWriter.WriteRaw(System.String)"> <summary> Writes raw JSON. </summary> <param name="json">The ra

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