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type: table cell
Read only the header octets into a parser from a __SyncReadStream__.
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/// An HTTP/1 parser for producing a message.
template<
bool isRequest, // `true` to parse an HTTP request
class Body, // The Body type for the resulting message
class Allocator = std::allocator<char>> // The type of allocator for the header
class parser
: public basic_parser<...>;
/// 用于生成消息的 HTTP/1 解析器
template<
bool isRequest, // 若为 true 则解析 HTTP 请求
class Body, // 结果消息的消息体
class Allocator = std::allocator<char>> // 头部所使用的分配器
class parser
: public basic_parser<...>;
[link beast.ref.boost__beast__http__request_parser `request_parser`]
[link beast.ref.boost__beast__http__request_parser `request_parser`]
/// An HTTP/1 parser for producing a request message.
template<class Body, class Allocator = std::allocator<char>>
using request_parser = parser<true, Body, Allocator>;
/// 用于生成请求消息的 HTTP/1 解析器
template<class Body, class Allocator = std::allocator<char>>
using request_parser = parser<true, Body, Allocator>;
[link beast.ref.boost__beast__http__response_parser `response_parser`]
[link beast.ref.boost__beast__http__response_parser `response_parser`]
/// An HTTP/1 parser for producing a response message.
template<class Body, class Allocator = std::allocator<char>>
using response_parser = parser<false, Body, Allocator>;
/// 用于生成响应消息的 HTTP/1 解析器
template<class Body, class Allocator = std::allocator<char>>
using response_parser = parser<false, Body, Allocator>;
The __basic_parser__ and classes derived from it handle octet streams
__basic_parser__ 及其派生类用于处理八位字节流。
The stream operations which work on parsers are:
用于操作解析器的流操作如下：
71
Parser Stream Operations
解析器流操作
71
Name
名称
71
Description
描述
[link beast.ref.boost__beast__http__read.overload1 [*read]]
[link beast.ref.boost__beast__http__read.overload1 [*read]]
Read everything into a parser from a __SyncReadStream__.
从 __SyncReadStream__ 读取所有数据到解析器。
[link beast.ref.boost__beast__http__async_read.overload1 [*async_read]]
[link beast.ref.boost__beast__http__async_read.overload1 [*async_read]]
Read everything into a parser asynchronously from an __AsyncReadStream__.
从 __AsyncReadStream__ 异步读取所有数据到解析器。
[link beast.ref.boost__beast__http__read_header.overload1 [*read_header]]
[link beast.ref.boost__beast__http__read_header.overload1 [*read_header]]
Read only the header octets into a parser from a __SyncReadStream__.
从 __SyncReadStream__ 仅读取头部八位字节到解析器。
[link beast.ref.boost__beast__http__async_read_header [*async_read_header]]
[link beast.ref.boost__beast__http__async_read_header [*async_read_header]]
Read only the header octets into a parser asynchronously from an __AsyncReadStream__.
从 __AsyncReadStream__ 异步仅读取头部八位字节到解析器。
[link beast.ref.boost__beast__http__read_some.overload1 [*read_some]]
[link beast.ref.boost__beast__http__read_some.overload1 [*read_some]]
Read some octets into a parser from a __SyncReadStream__.
从 __SyncReadStream__ 读取部分八位字节到解析器。
[link beast.ref.boost__beast__http__async_read_some [*async_read_some]]
[link beast.ref.boost__beast__http__async_read_some [*async_read_some]]
Read some octets into a parser asynchronously from an __AsyncReadStream__.
从 __AsyncReadStream__ 异步读取部分八位字节到解析器。
As with message stream operations, parser stream operations require a persisted __DynamicBuffer__ for holding unused octets from the stream. The basic parser implementation is optimized for the case where this dynamic buffer stores its input sequence in a single contiguous memory buffer. It is advised to use an instance of __flat_buffer__, __flat_static_buffer__, or __flat_static_buffer_base__ for this purpose, although a user defined instance of __DynamicBuffer__ which produces input sequences of length one is also suitable.
与消息流操作类似，解析器流操作也需要一个持久的 DynamicBuffer 来保存流中未使用的八位字节。当动态缓冲区使用单个连续内存块存储输入序列时，基本解析器实现能达到最优性能。因此，建议使用 flat_buffer、flat_static_buffer 或 flat_static_buffer_base 的实例；当然，用户自定义的 DynamicBuffer 实现，只要它能生成长度为 1 的输入序列，也同样适用。
The parser contains a message constructed internally. Arguments passed to the parser's constructor are forwarded into the message container. The caller can access the message inside the parser by calling [link beast.ref.boost__beast__http__parser.get `parser::get`]. If the `Fields` and `Body` types are [*MoveConstructible], the caller can take ownership of the message by calling [link beast.ref.boost__beast__http__parser.release `parser::release`]. In this example we read an HTTP response with a string body using a parser, then print the response:
解析器内部包含一个已构造的消息对象。传入解析器构造函数的参数会转发到消息容器中。调用方可通过 [link beast.ref.boost__beast__http__parser.get `parser::get`] 访问该消息。若 `Fields` 和 `Body` 类型支持移动构造，调用方还可通过 [link beast.ref.boost__beast__http__parser.release `parser::release`] 获取消息的所有权。以下示例使用解析器读取一个包含字符串消息体的 HTTP 响应，并将其打印出来：
Incremental Read __example__
增量读取 __示例__
This function uses [link beast.ref.boost__beast__http__buffer_body `buffer_body`] and parser stream operations to read a message body progressively using a small, fixed-size buffer:
该函数使用 [link beast.ref.boost__beast__http__buffer_body `buffer_body`] 和解析器流操作，通过一个固定大小的小缓冲区逐步读取消息体：
Reading large response body __example__
读取大型响应消息体 __示例__
This example presents how to increase the default limit of the response body size, thus the content larger than the default 8MB can be read.
本示例展示如何提高响应消息体大小的默认限制，以便读取超过默认 8MB 大小的内容。
Key English Chinese (Simplified Han script) Actions
[link beast.ref.boost__beast__http__read_header.overload1 [*read_header]]
[link beast.ref.boost__beast__http__read_header.overload1 [*read_header]]
These types of operations require callers to manage the lifetime of associated state, by constructing a class derived from __basic_parser__. Beast comes with the derived instance __parser__ which creates complete __message__ objects using the __basic_fields__ Fields container.
这类操作要求调用方管理相关状态的生命周期，具体方式为构造一个派生自 __basic_parser__ 的类。Beast 提供派生类 __parser__，该类型使用 __basic_fields__ 字段容器来创建完整的 __message__ 对象。
Parser
解析器
Read some octets into a parser from a __SyncReadStream__.
从 __SyncReadStream__ 读取部分八位字节到解析器。
[link beast.ref.boost__beast__http__read_some.overload1 [*read_some]]
[link beast.ref.boost__beast__http__read_some.overload1 [*read_some]]
__parser__
__解析器__
/// An HTTP/1 parser for producing a message.
template<
bool isRequest, // `true` to parse an HTTP request
class Body, // The Body type for the resulting message
class Allocator = std::allocator<char>> // The type of allocator for the header
class parser
: public basic_parser<...>;
/// 用于生成消息的 HTTP/1 解析器
template<
bool isRequest, // 若为 true 则解析 HTTP 请求
class Body, // 结果消息的消息体
class Allocator = std::allocator<char>> // 头部所使用的分配器
class parser
: public basic_parser<...>;
[link beast.ref.boost__beast__http__request_parser `request_parser`]
[link beast.ref.boost__beast__http__request_parser `request_parser`]
/// An HTTP/1 parser for producing a request message.
template<class Body, class Allocator = std::allocator<char>>
using request_parser = parser<true, Body, Allocator>;
/// 用于生成请求消息的 HTTP/1 解析器
template<class Body, class Allocator = std::allocator<char>>
using request_parser = parser<true, Body, Allocator>;
[link beast.ref.boost__beast__http__response_parser `response_parser`]
[link beast.ref.boost__beast__http__response_parser `response_parser`]
/// An HTTP/1 parser for producing a response message.
template<class Body, class Allocator = std::allocator<char>>
using response_parser = parser<false, Body, Allocator>;
/// 用于生成响应消息的 HTTP/1 解析器
template<class Body, class Allocator = std::allocator<char>>
using response_parser = parser<false, Body, Allocator>;
The __basic_parser__ and classes derived from it handle octet streams
__basic_parser__ 及其派生类用于处理八位字节流。
The stream operations which work on parsers are:
用于操作解析器的流操作如下：
Read only the header octets into a parser asynchronously from an __AsyncReadStream__.
从 __AsyncReadStream__ 异步仅读取头部八位字节到解析器。
[link beast.ref.boost__beast__http__async_read_header [*async_read_header]]
[link beast.ref.boost__beast__http__async_read_header [*async_read_header]]
Read only the header octets into a parser from a __SyncReadStream__.
从 __SyncReadStream__ 仅读取头部八位字节到解析器。
[link beast.ref.boost__beast__http__read.overload1 [*read]]
[link beast.ref.boost__beast__http__read.overload1 [*read]]
Read everything into a parser from a __SyncReadStream__.
从 __SyncReadStream__ 读取所有数据到解析器。
[link beast.ref.boost__beast__http__async_read.overload1 [*async_read]]
[link beast.ref.boost__beast__http__async_read.overload1 [*async_read]]
Read everything into a parser asynchronously from an __AsyncReadStream__.
从 __AsyncReadStream__ 异步读取所有数据到解析器。
10
Parser Stream Operations
解析器流操作
29
Description
描述
29
Name
名称
71
Description
描述
71
Name
名称
71
Parser Stream Operations
解析器流操作

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User avatar Bstran

Translation changed
Read only the header octets into a parser from a __SyncReadStream__.
Read only the header octets into a parser from a从 __SyncReadStream__. 仅读取头部八位字节到解析器。
06/16/2026
User avatar admin

String added in the repository
Read only the header octets into a parser from a __SyncReadStream__.
Read only the header octets into a parser from a __SyncReadStream__.
06/05/2026
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String information

Source string description
type: table cell
Unit identifier
58195
Source string location
string ID 71
String age
06/05/2026
Last updated
06/26/2026
Source string age
06/05/2026
Translation file QuickBook file
doc/qbk/04_http/05_parser_streams_zh_Hans.qbk, string 27