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File Body __example__
File Body __example文件消息体 __示例__
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As long as a suitable reader or writer is available to provide the algorithm for transferring buffers in and out of the value type, those bodies may be parsed or serialized.
As long as a suitable reader or writer is available to provide the algorithm for transferring buffers in and out of the value type, those bodies may be parsed or serialized.只要存在合适的读取器或写入器来提供在值类型之间传输缓冲区的算法，这些消息体就可以进行解析或序列化。
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}; ```
}; ```
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struct Body {
struct Body {
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The `value_type` nested type allows the body to define the declaration of the body type as it appears in the message. This can be any type. For example, a body's value type may specify `std::vector<char>` or `std::list<std::string>`. A custom body may even set the value type to something that is not a container for body octets, such as a [@boost:/libs/filesystem/doc/reference.html#class-path `boost::filesystem::path`]. Or, a more structured container may be chosen. This declares a body's value type as a JSON tree structure produced from a [@boost:/doc/html/json/input_output.html#json.input_output.parsing.streaming_parser `boost::json::stream_parser`]: ``` #include <boost/json/stream_parser.hpp>
The `value_type` nested type allows the body to define the declaration of the body type as it appears in the message. This can be any type. For example, a body's value type may specify嵌套类型允许消息体定义其在消息中的声明形式，该类型可以是任意类型。例如，消息体的值类型可以指定为 `std::vector<char>` or或 `std::list<std::string>`. A custom body may even set the value type to something that is not a container for body octets, such as a [@boost:/libs/filesystem/doc/reference.html#class-path `boost::filesystem::path`]. Or, a more structured container may be chosen. This declares a body's value type as a JSON tree structure produced from a。自定义消息体甚至可以将值类型设置为非消息体字节容器类型，例如 [@boost:/libs/filesystem/doc/reference.html#class-path `boost::filesystem::path`]，或者选择结构更复杂的容器。以下声明将消息体的值类型定义为由 [@boost:/doc/html/json/input_output.html#json.input_output.parsing.streaming_parser `boost::json::stream_parser`]: 生成的 JSON 树结构：``` #include <boost/json/stream_parser.hpp>
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Value Type
Value Type值类型
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An optional nested type meeting the requirements of __BodyReader__, which provides the algorithm for storing a forward range of buffer sequences in the body representation. If present, this body type may be used with a __parser__.
一个可选的嵌套类型，需满足 __BodyReader__ 的要求。该类型提供一种算法，用于将前向缓冲区序列的前向范围存储到消息体的表示中的算法形式中。如果存在该嵌套类型，则该存在，则对应的消息体类型可用于以配合 __parser__ 使用。
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An optional nested type meeting the requirements of __BodyWriter__, which provides the algorithm for converting the body representation to a forward range of buffer sequences. If present this body type may be used with a __serializer__.
An optional nested type meeting the requirements of __BodyWriter__, which provides the algorithm for converting the body representation to a forward range of buffer sequences. If present this body type may be used with a一个可选的嵌套类型，需满足 __BodyWriter__ 的要求。该类型提供一种算法，用于将消息体的表示形式转换为前向缓冲区序列范围。如果该嵌套类型存在，则对应的消息体类型可以配合 __serializer__. 使用。
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`writer`
`writer写入器`
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An optional nested type meeting the requirements of __BodyReader__, which provides the algorithm for storing a forward range of buffer sequences in the body representation. If present, this body type may be used with a __parser__.
An optional nested type meeting the requirements of __BodyReader__, which provides the algorithm for storing a forward range of buffer sequences in the body representation. If present, this body type may be used with a一个可选的嵌套类型，需满足 __BodyReader__ 的要求。该类型提供用于将缓冲区序列的前向范围存储到消息体表示中的算法。如果存在该嵌套类型，则该消息体类型可用于 __parser__.。
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`reader`
`reader读取器`
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Determines the type of the [link beast.ref.boost__beast__http__message.body `message::body`] member.
Determines the type of the用于确定 [link beast.ref.boost__beast__http__message.body `message::body`] member.成员的类型。
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`value_type`
`value_type`
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Description
Description描述
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Name
Name名称
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Body Type Members
Body Type Members消息体类型的成员
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The meaning of the nested types is as follows
The meaning of the nested types is as follows嵌套类型的含义如下：
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} ```
} ```
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User-defined types are possible for the message body, where the type meets the __Body__ requirements. This simplified class declaration shows the customization points available to user-defined body types: ``` /// Defines a Body type struct body {
User-defined types are possible for the message body, where the type meets the __Body__ requirements. This simplified class declaration shows the customization points available to user-defined body types: ``` /// Defines a Body type用户可以为消息体定义自己的类型，只要该类型符合 __Body__ 的要求。下面这个简化的类声明展示了用户自定义消息体类型有哪些可用的定制点：``` /// 定义一个消息体类型 struct body {
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Custom Body Types
Custom Body Types自定义消息体类型
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