QNetworkRequest 类

QNetworkRequest 类保持要被发送的请求，采用 QNetworkAccessManager . 更多...

头：	#include <QNetworkRequest>
CMake:	find_package(Qt6 REQUIRED COMPONENTS Network) target_link_libraries(mytarget PRIVATE Qt6::Network)
qmake:	QT += network

所有成员列表，包括继承成员
QNetworkRequest is part of 网络编程 API and 隐式共享类 .

公共类型

enum	属性 { HttpStatusCodeAttribute, HttpReasonPhraseAttribute, RedirectionTargetAttribute, ConnectionEncryptedAttribute, CacheLoadControlAttribute, …, UserMax }
enum	CacheLoadControl { AlwaysNetwork, PreferNetwork, PreferCache, AlwaysCache }
enum	KnownHeaders { ContentDispositionHeader, ContentTypeHeader, ContentLengthHeader, LocationHeader, LastModifiedHeader, …, ServerHeader }
enum	LoadControl { Automatic, Manual }
enum	Priority { HighPriority, NormalPriority, LowPriority }
enum	RedirectPolicy { ManualRedirectPolicy, NoLessSafeRedirectPolicy, SameOriginRedirectPolicy, UserVerifiedRedirectPolicy }
enum	TransferTimeoutConstant { DefaultTransferTimeoutConstant }

公共函数

	QNetworkRequest ()
	QNetworkRequest (const QUrl & url )
	QNetworkRequest (const QNetworkRequest & other )
	~QNetworkRequest ()
QVariant	属性 (QNetworkRequest::Attribute code , const QVariant & defaultValue = QVariant()) const
`(从 6.2 起)` qint64	decompressedSafetyCheckThreshold () const
bool	hasRawHeader (QAnyStringView headerName ) const
QVariant	header (QNetworkRequest::KnownHeaders header ) const
`(从 6.5 起)` QHttp1Configuration	http1Configuration () const
QHttp2Configuration	http2Configuration () const
int	maximumRedirectsAllowed () const
QObject *	originatingObject () const
QString	peerVerifyName () const
QNetworkRequest::Priority	priority () const
QByteArray	rawHeader (QAnyStringView headerName ) const
QList<QByteArray>	rawHeaderList () const
void	setAttribute (QNetworkRequest::Attribute code , const QVariant & value )
`(从 6.2 起)` void	setDecompressedSafetyCheckThreshold (qint64 threshold )
void	setHeader (QNetworkRequest::KnownHeaders header , const QVariant & value )
`(从 6.5 起)` void	setHttp1Configuration (const QHttp1Configuration & configuration )
void	setHttp2Configuration (const QHttp2Configuration & configuration )
void	setMaximumRedirectsAllowed (int maxRedirectsAllowed )
void	setOriginatingObject (QObject * object )
void	setPeerVerifyName (const QString & peerName )
void	setPriority (QNetworkRequest::Priority priority )
void	setRawHeader (const QByteArray & headerName , const QByteArray & headerValue )
void	setSslConfiguration (const QSslConfiguration & config )
void	setTransferTimeout (int timeout )
`(从 6.7 起)` void	setTransferTimeout (std::chrono::milliseconds duration = DefaultTransferTimeout)
void	setUrl (const QUrl & url )
QSslConfiguration	sslConfiguration () const
void	swap (QNetworkRequest & other )
int	transferTimeout () const
`(从 6.7 起)` std::chrono::milliseconds	transferTimeoutAsDuration () const
QUrl	url () const
bool	operator!= (const QNetworkRequest & other ) const
QNetworkRequest &	operator= (const QNetworkRequest & other )
bool	operator== (const QNetworkRequest & other ) const

静态公共成员

const std::chrono::std::chrono::milliseconds

DefaultTransferTimeout

详细描述

QNetworkRequest 属于网络访问 API 且是保持通过网络发送必要请求信息的类。它包含 URL 和一些可用于修改请求的辅助信息。

另请参阅 QNetworkReply and QNetworkAccessManager .

成员类型文档编制

enum QNetworkRequest:: 属性

属性代码用于 QNetworkRequest and QNetworkReply .

Attributes are extra meta-data that are used to control the behavior of the request and to pass further information from the reply back to the application. Attributes are also extensible, allowing custom implementations to pass custom values.

The following table explains what the default attribute codes are, the QVariant types associated, the default value if said attribute is missing and whether it's used in requests or replies.

常量	值	描述
`QNetworkRequest::HttpStatusCodeAttribute`	`0`	仅回复，类型： QMetaType::Int (no default) Indicates the HTTP status code received from the HTTP server (like 200, 304, 404, 401, etc.). If the connection was not HTTP-based, this attribute will not be present.
`QNetworkRequest::HttpReasonPhraseAttribute`	`1`	仅回复，类型： QMetaType::QByteArray (no default) Indicates the HTTP reason phrase as received from the HTTP server (like "Ok", "Found", "Not Found", "Access Denied", etc.) This is the human-readable representation of the status code (see above). If the connection was not HTTP-based, this attribute will not be present.
`QNetworkRequest::RedirectionTargetAttribute`	`2`	仅回复，类型： QMetaType::QUrl (no default) If present, it indicates that the server is redirecting the request to a different URL. The Network Access API does follow redirections by default, unless QNetworkRequest::ManualRedirectPolicy is used. Additionally, if QNetworkRequest::UserVerifiedRedirectPolicy is used, then this attribute will be set if the redirect was not followed. The returned URL might be relative. Use QUrl::resolved () to create an absolute URL out of it.
`QNetworkRequest::ConnectionEncryptedAttribute`	`3`	仅回复，类型： QMetaType::Bool (default: false) Indicates whether the data was obtained through an encrypted (secure) connection.
`QNetworkRequest::CacheLoadControlAttribute`	`4`	仅请求，类型： QMetaType::Int (default: QNetworkRequest::PreferNetwork ) Controls how the cache should be accessed. The possible values are those of QNetworkRequest::CacheLoadControl . Note that the default QNetworkAccessManager implementation does not support caching. However, this attribute may be used by certain backends to modify their requests (for example, for caching proxies).
`QNetworkRequest::CacheSaveControlAttribute`	`5`	仅请求，类型： QMetaType::Bool (default: true) Controls if the data obtained should be saved to cache for future uses. If the value is false, the data obtained will not be automatically cached. If true, data may be cached, provided it is cacheable (what is cacheable depends on the protocol being used).
`QNetworkRequest::SourceIsFromCacheAttribute`	`6`	仅回复，类型： QMetaType::Bool (default: false) Indicates whether the data was obtained from cache or not.
`QNetworkRequest::DoNotBufferUploadDataAttribute`	`7`	仅请求，类型： QMetaType::Bool (default: false) Indicates whether the QNetworkAccessManager code is allowed to buffer the upload data, e.g. when doing a HTTP POST. When using this flag with sequential upload data, the ContentLengthHeader header must be set.
`QNetworkRequest::HttpPipeliningAllowedAttribute`	`8`	仅请求，类型： QMetaType::Bool (default: false) Indicates whether the QNetworkAccessManager code is allowed to use HTTP pipelining with this request.
`QNetworkRequest::HttpPipeliningWasUsedAttribute`	`9`	仅回复，类型： QMetaType::Bool Indicates whether the HTTP pipelining was used for receiving this reply.
`QNetworkRequest::CustomVerbAttribute`	`10`	仅请求，类型： QMetaType::QByteArray Holds the value for the custom HTTP verb to send (destined for usage of other verbs than GET, POST, PUT and DELETE). This verb is set when calling QNetworkAccessManager::sendCustomRequest ().
`QNetworkRequest::CookieLoadControlAttribute`	`11`	仅请求，类型： QMetaType::Int (default: QNetworkRequest::Automatic ) Indicates whether to send 'Cookie' headers in the request. This attribute is set to false by Qt WebKit when creating a cross-origin XMLHttpRequest where withCredentials has not been set explicitly to true by the Javascript that created the request. See here for more information. (This value was introduced in 4.7.)
`QNetworkRequest::CookieSaveControlAttribute`	`13`	仅请求，类型： QMetaType::Int (default: QNetworkRequest::Automatic ) Indicates whether to save 'Cookie' headers received from the server in reply to the request. This attribute is set to false by Qt WebKit when creating a cross-origin XMLHttpRequest where withCredentials has not been set explicitly to true by the Javascript that created the request. See here for more information. (This value was introduced in 4.7.)
`QNetworkRequest::AuthenticationReuseAttribute`	`12`	仅请求，类型： QMetaType::Int (default: QNetworkRequest::Automatic ) Indicates whether to use cached authorization credentials in the request, if available. If this is set to QNetworkRequest::Manual and the authentication mechanism is 'Basic' or 'Digest', Qt will not send an 'Authorization' HTTP header with any cached credentials it may have for the request's URL. This attribute is set to QNetworkRequest::Manual by Qt WebKit when creating a cross-origin XMLHttpRequest where withCredentials has not been set explicitly to true by the Javascript that created the request. See here for more information. (This value was introduced in 4.7.)
`QNetworkRequest::BackgroundRequestAttribute`	`17`	类型： QMetaType::Bool (default: false) Indicates that this is a background transfer, rather than a user initiated transfer. Depending on the platform, background transfers may be subject to different policies.
`QNetworkRequest::Http2AllowedAttribute`	`19`	仅请求，类型： QMetaType::Bool (default: true) Indicates whether the QNetworkAccessManager code is allowed to use HTTP/2 with this request. This applies to SSL requests or 'cleartext' HTTP/2 if Http2CleartextAllowedAttribute is set.
`QNetworkRequest::Http2WasUsedAttribute`	`20`	仅回复，类型： QMetaType::Bool (default: false) Indicates whether HTTP/2 was used for receiving this reply. (This value was introduced in 5.9.)
`QNetworkRequest::EmitAllUploadProgressSignalsAttribute`	`18`	仅请求，类型： QMetaType::Bool (default: false) Indicates whether all upload signals should be emitted. By default, the uploadProgress signal is emitted only in 100 millisecond intervals. (This value was introduced in 5.5.)
`QNetworkRequest::OriginalContentLengthAttribute`	`21`	仅回复，类型 QMetaType::Int Holds the original content-length attribute before being invalidated and removed from the header when the data is compressed and the request was marked to be decompressed automatically. (This value was introduced in 5.9.)
`QNetworkRequest::RedirectPolicyAttribute`	`22`	仅请求，类型： QMetaType::Int , should be one of the QNetworkRequest::RedirectPolicy values (default: NoLessSafeRedirectPolicy ). (This value was introduced in 5.9.)
`QNetworkRequest::Http2DirectAttribute`	`23`	仅请求，类型： QMetaType::Bool (default: false) If set, this attribute will force QNetworkAccessManager to use HTTP/2 protocol without initial HTTP/2 protocol negotiation. Use of this attribute implies prior knowledge that a particular server supports HTTP/2. The attribute works with SSL or with 'cleartext' HTTP/2 if Http2CleartextAllowedAttribute is set. If a server turns out to not support HTTP/2, when HTTP/2 direct was specified, QNetworkAccessManager gives up, without attempting to fall back to HTTP/1.1. If both Http2AllowedAttribute and Http2DirectAttribute are set, Http2DirectAttribute takes priority. (This value was introduced in 5.11.)
`QNetworkRequest::AutoDeleteReplyOnFinishAttribute`	`25`	仅请求，类型： QMetaType::Bool (default: false) If set, this attribute will make QNetworkAccessManager delete the QNetworkReply after having emitted "finished". (This value was introduced in 5.14.)
`QNetworkRequest::ConnectionCacheExpiryTimeoutSecondsAttribute`	`26`	仅请求，类型： QMetaType::Int To set when the TCP connections to a server (HTTP1 and HTTP2) should be closed after the last pending request had been processed. (This value was introduced in 6.3.)
`QNetworkRequest::Http2CleartextAllowedAttribute`	`27`	仅请求，类型： QMetaType::Bool (default: false) If set, this attribute will tell QNetworkAccessManager to attempt an upgrade to HTTP/2 over cleartext (also known as h2c). Until Qt 7 the default value for this attribute can be overridden to true by setting the QT_NETWORK_H2C_ALLOWED environment variable. This attribute is ignored if the Http2AllowedAttribute is not set. (This value was introduced in 6.3.)
`QNetworkRequest::UseCredentialsAttribute`	`28`	仅请求，类型： QMetaType::Bool (default: false) Indicates if the underlying XMLHttpRequest cross-site Access-Control requests should be made using credentials. Has no effect on same-origin requests. This only affects the WebAssembly platform. (This value was introduced in 6.5.)
`QNetworkRequest::User`	`1000`	Special type. Additional information can be passed in QVariants with types ranging from User to UserMax. The default implementation of Network Access will ignore any request attributes in this range and it will not produce any attributes in this range in replies. The range is reserved for extensions of QNetworkAccessManager .
`QNetworkRequest::UserMax`	`32767`	特殊类型。见 User。

enum QNetworkRequest:: CacheLoadControl

控制缓存机制为 QNetworkAccessManager .

常量	值	描述
`QNetworkRequest::AlwaysNetwork`	`0`	always load from network and do not check if the cache has a valid entry (similar to the "Reload" feature in browsers); in addition, force intermediate caches to re-validate.
`QNetworkRequest::PreferNetwork`	`1`	default value; load from the network if the cached entry is older than the network entry. This will never return stale data from the cache, but revalidate resources that have become stale.
`QNetworkRequest::PreferCache`	`2`	load from cache if available, otherwise load from network. Note that this can return possibly stale (but not expired) items from cache.
`QNetworkRequest::AlwaysCache`	`3`	仅从缓存加载，指示出错若项未缓存 (即：离线模式)

enum QNetworkRequest:: KnownHeaders

已知头类型列表 QNetworkRequest 剖析。每个已知头也以其完整 HTTP 名称按原生形式表示。

常量	值	描述
`QNetworkRequest::ContentDispositionHeader`	`6`	相当于 HTTP Content-Disposition 头且包含包含处置类型 (例如：附件) 及参数 (例如：文件名) 的字符串。
`QNetworkRequest::ContentTypeHeader`	`0`	相当于 HTTP Content-Type 头且包含包含媒体 MIME 类型及任何辅助数据 (例如：字符集) 的字符串。
`QNetworkRequest::ContentLengthHeader`	`1`	相当于 HTTP Content-Length 头且包含以字节为单位的传输数据长度。
`QNetworkRequest::LocationHeader`	`2`	相当于 HTTP Location 头且包含表示数据实际位置的 URL，包括重定向情况下的目的地 URL。
`QNetworkRequest::LastModifiedHeader`	`3`	相当于 HTTP Last-Modified 头且包含 QDateTime 表示内容的最后修改日期。
`QNetworkRequest::IfModifiedSinceHeader`	`9`	相当于 HTTP If-Modified-Since 头且包含 QDateTime 。它通常被添加到 QNetworkRequest 。服务器应发送 304 (未修改) 响应，若资源从此时间起未改变。
`QNetworkRequest::ETagHeader`	`10`	相当于 HTTP ETag 头且包含 QString 表示内容的最后修改状态。
`QNetworkRequest::IfMatchHeader`	`11`	相当于 HTTP If-Match 头且包含 QStringList 。它通常被添加到 QNetworkRequest 。服务器应发送 412 (前提条件失败) 响应，若资源不匹配。
`QNetworkRequest::IfNoneMatchHeader`	`12`	相当于 HTTP If-None-Match 头且包含 QStringList 。它通常被添加到 QNetworkRequest 。服务器应发送 304 (未修改) 响应，若资源匹配。
`QNetworkRequest::CookieHeader`	`4`	相当于 HTTP Cookie 头且包含 QList < QNetworkCookie > 表示要发送回服务器的 Cookie。
`QNetworkRequest::SetCookieHeader`	`5`	相当于 HTTP Set-Cookie 头且包含 QList < QNetworkCookie > 表示由服务器发送给本地存储的 Cookie。
`QNetworkRequest::UserAgentHeader`	`7`	由 HTTP 客户端发送的 User-Agent 头。
`QNetworkRequest::ServerHeader`	`8`	由 HTTP 客户端收到的服务器 Header (头)。

另请参阅 header (), setHeader (), rawHeader ()，和 setRawHeader ().

enum QNetworkRequest:: LoadControl

指示是否已手动覆盖请求的加载机制的某个方面，如，通过 Qt WebKit。

常量	值	描述
`QNetworkRequest::Automatic`	`0`	默认值：指示默认行为。
`QNetworkRequest::Manual`	`1`	指示已手动覆写行为。

enum QNetworkRequest:: Priority

此枚举列表可能的网络请求优先级。

常量	值	描述
`QNetworkRequest::HighPriority`	`1`	高优先级
`QNetworkRequest::NormalPriority`	`3`	正常优先级
`QNetworkRequest::LowPriority`	`5`	低优先级

enum QNetworkRequest:: RedirectPolicy

指示网络访问 API 是否应该自动遵循 HTTP 重定向响应。

常量	值	描述
`QNetworkRequest::ManualRedirectPolicy`	`0`	Not following any redirects.
`QNetworkRequest::NoLessSafeRedirectPolicy`	`1`	Default value: Only "http"->"http", "http" -> "https" or "https" -> "https" redirects are allowed.
`QNetworkRequest::SameOriginRedirectPolicy`	`2`	要求相同协议、主机及端口。注意：采用此策略 http://example.com 和 http://example.com:80 将失败 (隐式/明确端口被认为是不匹配的)。
`QNetworkRequest::UserVerifiedRedirectPolicy`	`3`	客户端决定是否遵循每个重定向通过处理 redirected() 信号，发射 redirectAllowed() 当 QNetworkReply 对象允许重定向或中止/完成以拒绝重定向。这可以被使用，例如，询问用户是否接受重定向，或基于某些特定 APP 配置来决定。

注意： When Qt handles redirects it will, for legacy and compatibility reasons, issue the redirected request using GET when the server returns a 301 or 302 response, regardless of the original method used, unless it was HEAD.

enum QNetworkRequest:: TransferTimeoutConstant

可以被用于启用带预置值的传输超时的常量。

常量	值	描述
`QNetworkRequest::DefaultTransferTimeoutConstant`	`30000`	传输超时 (以毫秒为单位)。使用，若不带自变量调用 setTimeout()。

另请参阅 QNetworkRequest::DefaultTransferTimeout .

成员函数文档编制

QNetworkRequest:: QNetworkRequest ()

构造不带要请求 URL 的 QNetworkRequest 对象。使用 setUrl () 去设置一个。

另请参阅 url () 和 setUrl ().

`[explicit]` QNetworkRequest:: QNetworkRequest (const QUrl & url )

构造 QNetworkRequest 对象采用 url 作为要请求的 URL。

另请参阅 url () 和 setUrl ().

QNetworkRequest:: QNetworkRequest (const QNetworkRequest & other )

创建副本为 other .

`[noexcept]` QNetworkRequest:: ~QNetworkRequest ()

Disposes of the QNetworkRequest 对象。

QVariant QNetworkRequest:: 属性 ( QNetworkRequest::Attribute code , const QVariant & defaultValue = QVariant()) const

返回属性关联代码 code . If the attribute has not been set, it returns defaultValue .

注意： 此函数不应用默认，列出于 QNetworkRequest::Attribute .

另请参阅 setAttribute () 和 QNetworkRequest::Attribute .

`[since 6.2]` qint64 QNetworkRequest:: decompressedSafetyCheckThreshold () const

Returns the threshold for archive bomb checks.

If the decompressed size of a reply is smaller than this, Qt will simply decompress it, without further checking.

该函数在 Qt 6.2 引入。

另请参阅 setDecompressedSafetyCheckThreshold ().

bool QNetworkRequest:: hasRawHeader ( QAnyStringView headerName ) const

返回 true 若原生 Header (头) headerName 呈现在此网络请求中。

注意： 在 Qt 6.7 之前，此函数接受 QByteArray 仅。

另请参阅 rawHeader () 和 setRawHeader ().

返回已知网络 Header (头) 的值为 header 若它呈现在此请求中。若不存在，返回 QVariant() (即：无效变体)。

另请参阅 KnownHeaders , rawHeader ()，和 setHeader ().

`[since 6.5]` QHttp1Configuration QNetworkRequest:: http1Configuration () const

Returns the current parameters that QNetworkAccessManager is using for the underlying HTTP/1 connection of this request.

该函数在 Qt 6.5 引入。

另请参阅 setHttp1Configuration .

QHttp2Configuration QNetworkRequest:: http2Configuration () const

Returns the current parameters that QNetworkAccessManager is using for this request and its underlying HTTP/2 connection. This is either a configuration previously set by an application or a default configuration.

The default values that QNetworkAccessManager is using are:

Window size for connection-level flowcontrol is 2147483647 octets
Window size for stream-level flowcontrol is 214748364 octets
Max frame size is 16384

By default, server push is disabled, Huffman compression and string indexing are enabled.

另请参阅 setHttp2Configuration .

int QNetworkRequest:: maximumRedirectsAllowed () const

Returns the maximum number of redirects allowed to be followed for this request.

另请参阅 setMaximumRedirectsAllowed ().

QObject *QNetworkRequest:: originatingObject () const

Returns a reference to the object that initiated this network request; returns nullptr if not set or the object has been destroyed.

另请参阅 setOriginatingObject ().

QString QNetworkRequest:: peerVerifyName () const

Returns the host name set for the certificate validation, as set by setPeerVerifyName . By default this returns a null string.

另请参阅 setPeerVerifyName .

QNetworkRequest::Priority QNetworkRequest:: priority () const

返回此请求的优先级。

另请参阅 setPriority ().

QByteArray QNetworkRequest:: rawHeader ( QAnyStringView headerName ) const

返回 Header (头) 的原生形式为 headerName 。若不存在这种 Header (头)，空 QByteArray 被返回，可能难以区分存在但没有内容的 Header 头 (使用 hasRawHeader () 以确定 Header 头是否存在)。

可以设置原生 Header (头) 采用 setRawHeader () 或采用 setHeader ().

注意： 在 Qt 6.7 之前，此函数接受 QByteArray 仅。

另请参阅 header () 和 setRawHeader ().

QList < QByteArray > QNetworkRequest:: rawHeaderList () const

Returns a list of all raw headers that are set in this network request. The list is in the order that the headers were set.

另请参阅 hasRawHeader () 和 rawHeader ().

void QNetworkRequest:: setAttribute ( QNetworkRequest::Attribute code , const QVariant & value )

Sets the attribute associated with code code to be value value . If the attribute is already set, the previous value is discarded. In special, if value 是无效 QVariant , the attribute is unset.

另请参阅 属性 () 和 QNetworkRequest::Attribute .

`[since 6.2]` void QNetworkRequest:: setDecompressedSafetyCheckThreshold ( qint64 threshold )

设置 threshold for archive bomb checks.

Some supported compression algorithms can, in a tiny compressed file, encode a spectacularly huge decompressed file. This is only possible if the decompressed content is extremely monotonous, which is seldom the case for real files being transmitted in good faith: files exercising such insanely high compression ratios are typically payloads of buffer-overrun attacks, or denial-of-service (by using up too much memory) attacks. Consequently, files that decompress to huge sizes, particularly from tiny compressed forms, are best rejected as suspected malware.

If a reply's decompressed size is bigger than this threshold (by default, 10 MiB, i.e. 10 * 1024 * 1024), Qt will check the compression ratio: if that is unreasonably large (40:1 for GZip and Deflate, or 100:1 for Brotli and ZStandard), the reply will be treated as an error. Setting the threshold to -1 disables this check.

该函数在 Qt 6.2 引入。

另请参阅 decompressedSafetyCheckThreshold ().

void QNetworkRequest:: setHeader ( QNetworkRequest::KnownHeaders header , const QVariant & value )

Sets the value of the known header header 到 value ，覆盖任何先前设置的 Header (头)。此操作还设置等效原生 HTTP (头)。

另请参阅 KnownHeaders , setRawHeader ()，和 header ().

`[since 6.5]` void QNetworkRequest:: setHttp1Configuration (const QHttp1Configuration & configuration )

Sets request's HTTP/1 parameters from configuration .

该函数在 Qt 6.5 引入。

另请参阅 http1Configuration , QNetworkAccessManager ，和 QHttp1Configuration .

void QNetworkRequest:: setHttp2Configuration (const QHttp2Configuration & configuration )

Sets request's HTTP/2 parameters from configuration .

注意： The configuration must be set prior to making a request.

注意： HTTP/2 multiplexes several streams in a single HTTP/2 connection. This implies that QNetworkAccessManager will use the configuration found in the first request from a series of requests sent to the same host.

另请参阅 http2Configuration , QNetworkAccessManager ，和 QHttp2Configuration .

void QNetworkRequest:: setMaximumRedirectsAllowed ( int maxRedirectsAllowed )

Sets the maximum number of redirects allowed to be followed for this request to maxRedirectsAllowed .

另请参阅 maximumRedirectsAllowed ().

void QNetworkRequest:: setOriginatingObject ( QObject * object )

Allows setting a reference to the object initiating the request.

For example Qt WebKit sets the originating object to the QWebFrame that initiated the request.

另请参阅 originatingObject ().

void QNetworkRequest:: setPeerVerifyName (const QString & peerName )

设置 peerName as host name for the certificate validation, instead of the one used for the TCP connection.

另请参阅 peerVerifyName .

void QNetworkRequest:: setPriority ( QNetworkRequest::Priority priority )

把此请求的优先级设为 priority .

注意： The priority is only a hint to the network access manager. It can use it or not. Currently it is used for HTTP to decide which request should be sent first to a server.

另请参阅 priority ().

void QNetworkRequest:: setRawHeader (const QByteArray & headerName , const QByteArray & headerValue )

设置 Header (头) headerName 到值 headerValue 。若 headerName 对应已知 Header (头部) (见 QNetworkRequest::KnownHeaders )，原生格式将被剖析，相应 cooked 头也将被设置。

例如：

request.setRawHeader(QByteArray("Last-Modified"), QByteArray("Sun, 06 Nov 1994 08:49:37 GMT"));

还将设置已知 Header LastModifiedHeader 为 QDateTime 剖析日期对象。

注意： 设置相同的头 2 次覆盖先前设置。要完成相同名称多个 HTTP 头的行为，应采用逗号 , 分隔它们并串联这 2 个值，然后设置一个原生 Header (头)。

另请参阅 KnownHeaders , setHeader (), hasRawHeader ()，和 rawHeader ().

void QNetworkRequest:: setSslConfiguration (const QSslConfiguration & config )

Sets this network request's SSL configuration to be config . The settings that apply are the private key, the local certificate, the TLS protocol (e.g. TLS 1.3), the CA certificates and the ciphers that the SSL backend is allowed to use.

另请参阅 sslConfiguration () 和 QSslConfiguration::defaultConfiguration ().

void QNetworkRequest:: setTransferTimeout ( int timeout )

设置 timeout 作为传输超时 (以毫秒为单位)。

另请参阅 setTransferTimeout (std::chrono::milliseconds), transferTimeout ()，和 transferTimeoutAsDuration ().

`[since 6.7]` void QNetworkRequest:: setTransferTimeout ( std::chrono::milliseconds duration = DefaultTransferTimeout)

Sets the timeout duration to abort the transfer if no data is exchanged.

Transfers are aborted if no bytes are transferred before the timeout expires. Zero means no timer is set. If no argument is provided, the timeout is QNetworkRequest::DefaultTransferTimeout . If this function is not called, the timeout is disabled and has the value zero.

该函数在 Qt 6.7 引入。

另请参阅 transferTimeoutAsDuration ().

void QNetworkRequest:: setUrl (const QUrl & url )

Sets the URL this network request is referring to be url .

另请参阅 url ().

QSslConfiguration QNetworkRequest:: sslConfiguration () const

Returns this network request's SSL configuration. By default this is the same as QSslConfiguration::defaultConfiguration ().

另请参阅 setSslConfiguration () 和 QSslConfiguration::defaultConfiguration ().

`[noexcept]` void QNetworkRequest:: swap ( QNetworkRequest & other )

Swaps this network request with other 。此函数非常快且从不失败。

int QNetworkRequest:: transferTimeout () const

返回用于传输的超时 (以毫秒为单位)。

另请参阅 setTransferTimeout ().

`[since 6.7]` std::chrono::milliseconds QNetworkRequest:: transferTimeoutAsDuration () const

Returns the timeout duration after which the transfer is aborted if no data is exchanged.

The default duration is zero, which means that the timeout is not used.

该函数在 Qt 6.7 引入。

另请参阅 setTransferTimeout (std::chrono::milliseconds).

QUrl QNetworkRequest:: url () const

返回此网络请求所引用的 URL。

另请参阅 setUrl ().

bool QNetworkRequest:: operator!= (const QNetworkRequest & other ) const

返回 false if this object is not the same as other .

另请参阅 operator== ().

QNetworkRequest &QNetworkRequest:: operator= (const QNetworkRequest & other )

创建副本为 other

bool QNetworkRequest:: operator== (const QNetworkRequest & other ) const

返回 true if this object is the same as other (i.e., if they have the same URL, same headers and same meta-data settings).

另请参阅 operator!= ().

成员变量文档编制

const std::chrono::std::chrono::milliseconds QNetworkRequest:: DefaultTransferTimeout

The transfer timeout with QNetworkRequest::TransferTimeoutConstant milliseconds. Used if setTransferTimeout () is called without an argument.