# QLocalServer Class Reference
## [[QtNetwork](index.htm) module]
該QLocalServer類提供了一個基于本地套接字服務器。[More...](#details)
繼承[QObject](qobject.html)。
### Methods
* `__init__ (self, QObject?parent?=?None)`
* `close (self)`
* `QString errorString (self)`
* `QString fullServerName (self)`
* `bool hasPendingConnections (self)`
* `incomingConnection (self, sip.voidptr?socketDescriptor)`
* `bool isListening (self)`
* `bool listen (self, QString?name)`
* `int maxPendingConnections (self)`
* `QLocalSocket nextPendingConnection (self)`
* `QAbstractSocket.SocketError serverError (self)`
* `QString serverName (self)`
* `setMaxPendingConnections (self, int?numConnections)`
* `(bool, bool?timedOut) waitForNewConnection (self, int?msecs?=?0)`
### Static Methods
* `bool removeServer (QString?name)`
### Qt Signals
* `void newConnection ()`
* * *
## Detailed Description
該QLocalServer類提供了一個基于本地套接字服務器。
這個類使得它可以接受傳入本地套接字連接。
Call [listen](qlocalserver.html#listen)( )讓服務器開始偵聽在指定的鍵進入的連接。該[newConnection](qlocalserver.html#newConnection)( )信號,然后每個客戶端連接到服務器時發出的。
Call [nextPendingConnection](qlocalserver.html#nextPendingConnection)( )接受掛起的連接作為一個連接[QLocalSocket](qlocalsocket.html)。該函數返回一個指針,指向一個[QLocalSocket](qlocalsocket.html)可以用于與客戶機進行通信。
如果發生錯誤,[serverError](qlocalserver.html#serverError)()返回的錯誤的類型,并且[errorString](qlocalserver.html#errorString)( )可以被調用來獲取發生了什么可讀的描述。
當偵聽連接,服務器正在偵聽的名稱,可通過[serverName](qlocalserver.html#serverName)( ) 。
調用[close](qlocalserver.html#close)( )使得QLocalServer停止偵聽傳入的連接。
雖然QLocalServer是專為一個事件循環使用,它可以使用它沒有之一。在這種情況下,您必須使用[waitForNewConnection](qlocalserver.html#waitForNewConnection)( ) ,這阻止,直到一個連接可用或者超時。
* * *
## Method Documentation
```
QLocalServer.__init__ (self, QObject?parent?=?None)
```
該_parent_的說法,如果不是沒有,原因_self_通過Qt的,而不是PyQt的擁有。
創建一個新的本地套接字服務器與給定_parent_。
**See also** [listen](qlocalserver.html#listen)( ) 。
```
QLocalServer.close (self)
```
停止偵聽傳入的連接。現有的連接將不受影響,但任何新的連接將被拒絕。
**See also** [isListening](qlocalserver.html#isListening)()和[listen](qlocalserver.html#listen)( ) 。
```
QString QLocalServer.errorString (self)
```
返回人類可讀的消息恰當報告的當前錯誤[serverError](qlocalserver.html#serverError)( ) 。如果沒有合適的字符串是可用的,則返回一個空字符串。
**See also** [serverError](qlocalserver.html#serverError)( ) 。
```
QString QLocalServer.fullServerName (self)
```
返回該服務器監聽的完整路徑。
注:這是具體平臺
**See also** [listen](qlocalserver.html#listen)()和[serverName](qlocalserver.html#serverName)( ) 。
```
bool QLocalServer.hasPendingConnections (self)
```
返回True ,如果服務器有一個掛起的連接,否則返回False 。
**See also** [nextPendingConnection](qlocalserver.html#nextPendingConnection)()和[setMaxPendingConnections](qlocalserver.html#setMaxPendingConnections)( ) 。
```
QLocalServer.incomingConnection (self, sip.voidptr?socketDescriptor)
```
這個虛函數被調用[QLocalServer](qlocalserver.html)當一個新的連接可用。_socketDescriptor_對于接受連接的本地套接字描述符。
該基地實現創建一個[QLocalSocket](qlocalsocket.html),設置套接字描述符,然后存儲[QLocalSocket](qlocalsocket.html)在掛起連接的內部清單。最后[newConnection](qlocalserver.html#newConnection)()被發射。
重新實現這個函數來改變服務器的行為,當一個連接可用。
**See also** [newConnection](qlocalserver.html#newConnection)( )[nextPendingConnection](qlocalserver.html#nextPendingConnection)()和[QLocalSocket.setSocketDescriptor](qlocalsocket.html#setSocketDescriptor)( ) 。
```
bool QLocalServer.isListening (self)
```
如果服務器正在偵聽傳入連接,否則為False ,則返回True 。
**See also** [listen](qlocalserver.html#listen)()和[close](qlocalserver.html#close)( ) 。
```
bool QLocalServer.listen (self, QString?name)
```
告訴服務器偵聽傳入的連接_name_。如果服務器當前正在偵聽那么它將返回False 。返回True成功,否則為False 。
_name_可以是單一的名稱和[QLocalServer](qlocalserver.html)將確定正確的特定于平臺的路徑。[serverName](qlocalserver.html#serverName)( )將返回傳遞到聽的名字。
通常你會只是通過像“foo”的名稱,但在Unix上,這也可能是諸如“ / tmp目錄/富”的路徑,在Windows上,這可能是一個管道的路徑,例如“ \ \ \管道\富” 。對于以下路徑的VxWorks必須始終使用“ / comp/socket/0xNumber ”,其中“ 0xNumber ”是十六進制格式的16位數字的字符串表示形式。例如“ / comp/socket/0x00AA ” 。
注意:在Unix上,如果不關閉服務器崩潰聽會失敗, AddressInUseError 。創建該文件應該被刪除新服務器。在Windows兩個本地服務器可以聽同一管道的同時,但任何連接將轉到服務器之一。
**See also** [serverName](qlocalserver.html#serverName)( )[isListening](qlocalserver.html#isListening)()和[close](qlocalserver.html#close)( ) 。
```
int QLocalServer.maxPendingConnections (self)
```
返回未決接受的連接的最大數目。默認值是30 。
**See also** [setMaxPendingConnections](qlocalserver.html#setMaxPendingConnections)()和[hasPendingConnections](qlocalserver.html#hasPendingConnections)( ) 。
```
QLocalSocket QLocalServer.nextPendingConnection (self)
```
[](qlocalsocket.html)
[返回的連接下一個待連接](qlocalsocket.html)[QLocalSocket](qlocalsocket.html)對象。
套接字被作為服務器的一個子創建的,這意味著它被自動刪除時[QLocalServer](qlocalserver.html)對象被銷毀。它仍然是一個好主意,明確地刪除的對象,當你用它做,以避免浪費內存。
如果這個函數被調用時,有沒有掛起的連接則返回0 。
**See also** [hasPendingConnections](qlocalserver.html#hasPendingConnections)( )[newConnection](qlocalserver.html#newConnection)()和[incomingConnection](qlocalserver.html#incomingConnection)( ) 。
```
bool QLocalServer.removeServer (QString?name)
```
刪除可能導致調用任何服務器實例[listen](qlocalserver.html#listen)()失敗,如果成功返回True,否則返回False 。此功能是為了從崩潰中,當以前的服務器實例還沒有被清理回收。
在Windows中,這個函數不做任何事情;在Unix上,它消除由給定的套接字文件_name_。
**Warning:**要小心,以避免刪除運行實例的插座。
此功能被引入Qt的4.5 。
```
QAbstractSocket.SocketError QLocalServer.serverError (self)
```
[
最后返回NOERROR或發生錯誤的類型。
](qabstractsocket.html#SocketError-enum)
[**See also**](qabstractsocket.html#SocketError-enum) [errorString](qlocalserver.html#errorString)( ) 。
```
QString QLocalServer.serverName (self)
```
返回如果服務器正在監聽等待連接的服務器名,否則返回的QString ( )
**See also** [listen](qlocalserver.html#listen)()和[fullServerName](qlocalserver.html#fullServerName)( ) 。
```
QLocalServer.setMaxPendingConnections (self, int?numConnections)
```
設置掛起接受的最大連接數_numConnections_。[QLocalServer](qlocalserver.html)將接受不超過_numConnections_前傳入的連接[nextPendingConnection](qlocalserver.html#nextPendingConnection)()被調用。
注:即使[QLocalServer](qlocalserver.html)將停止接受新的連接后,它已經達到了掛起連接的最大數量,操作系統可能仍然讓他們在隊列中,這將導致客戶端的信號,它是連通的。
**See also** [maxPendingConnections](qlocalserver.html#maxPendingConnections)()和[hasPendingConnections](qlocalserver.html#hasPendingConnections)( ) 。
```
(bool, bool?timedOut) QLocalServer.waitForNewConnection (self, int?msecs?=?0)
```
最多等待_msec_毫秒或直到傳入的連接是可用的。返回True如果連接可用,否則返回False 。如果操作超時,_timedOut_不為0 , * TIMEDOUT將被設置為True。
這是一個阻塞函數調用。它的使用是不明智的單線程GUI應用程序,因為整個應用程序將停止響應,直到函數返回。當沒有事件循環可用waitForNewConnection ( )是最有用。
非阻塞的替代方法是連接到[newConnection](qlocalserver.html#newConnection)()信號。
如果毫秒為-1 ,此功能將不會超時。
**See also** [hasPendingConnections](qlocalserver.html#hasPendingConnections)()和[nextPendingConnection](qlocalserver.html#nextPendingConnection)( ) 。
* * *
## Qt Signal Documentation
```
void newConnection ()
```
這是該信號的默認超載。
每當一個新的連接是可用的,這個信號被發射。
**See also** [hasPendingConnections](qlocalserver.html#hasPendingConnections)()和[nextPendingConnection](qlocalserver.html#nextPendingConnection)( ) 。
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- QStringList Class Reference
- QStringListModel Class Reference
- QStringMatcher Class Reference
- QStringRef Class Reference
- QStyle Class Reference
- QStyledItemDelegate Class Reference
- QStyleFactory Class Reference
- QStyleHintReturn Class Reference
- QStyleHintReturnMask Class Reference
- QStyleHintReturnVariant Class Reference
- QStyleOption Class Reference
- QStyleOptionButton Class Reference
- QStyleOptionComboBox Class Reference
- QStyleOptionComplex Class Reference
- QStyleOptionDockWidget Class Reference
- QStyleOptionDockWidgetV2 Class Reference
- QStyleOptionFocusRect Class Reference
- QStyleOptionFrame Class Reference
- QStyleOptionFrameV2 Class Reference
- QStyleOptionFrameV3 Class Reference
- QStyleOptionGraphicsItem Class Reference
- QStyleOptionGroupBox Class Reference
- QStyleOptionHeader Class Reference
- QStyleOptionMenuItem Class Reference
- QStyleOptionProgressBar Class Reference
- QStyleOptionProgressBarV2 Class Reference
- QStyleOptionRubberBand Class Reference
- QStyleOptionSizeGrip Class Reference
- QStyleOptionSlider Class Reference
- QStyleOptionSpinBox Class Reference
- QStyleOptionTab Class Reference
- QStyleOptionTabBarBase Class Reference
- QStyleOptionTabBarBaseV2 Class Reference
- QStyleOptionTabV2 Class Reference
- QStyleOptionTabV3 Class Reference
- QStyleOptionTabWidgetFrame Class Reference
- QStyleOptionTabWidgetFrameV2 Class Reference
- QStyleOptionTitleBar Class Reference
- QStyleOptionToolBar Class Reference
- QStyleOptionToolBox Class Reference
- QStyleOptionToolBoxV2 Class Reference
- QStyleOptionToolButton Class Reference
- QStyleOptionViewItem Class Reference
- QStyleOptionViewItemV2 Class Reference
- QStyleOptionViewItemV3 Class Reference
- QStyleOptionViewItemV4 Class Reference
- QStylePainter Class Reference
- QSvgGenerator Class Reference
- QSvgRenderer Class Reference
- QSvgWidget Class Reference
- QSwipeGesture Class Reference
- QSyntaxHighlighter Class Reference
- QSysInfo Class Reference
- QSystemLocale Class Reference
- QSystemSemaphore Class Reference
- QSystemTrayIcon Class Reference
- Qt Class Reference
- QTabBar Class Reference
- QTabletEvent Class Reference
- QTableView Class Reference
- QTableWidget Class Reference
- QTableWidgetItem Class Reference
- QTableWidgetSelectionRange Class Reference
- QTabWidget Class Reference
- QTapAndHoldGesture Class Reference
- QTapGesture Class Reference
- QTcpServer Class Reference
- QTcpSocket Class Reference
- QTemporaryFile Class Reference
- QTest Class Reference
- QTextBlock Class Reference
- QTextBlockFormat Class Reference
- QTextBlockGroup Class Reference
- QTextBlockUserData Class Reference
- QTextBoundaryFinder Class Reference
- QTextBrowser Class Reference
- QTextCharFormat Class Reference
- QTextCodec Class Reference
- QTextCursor Class Reference
- QTextDecoder Class Reference
- QTextDocument Class Reference
- QTextDocumentFragment Class Reference
- QTextDocumentWriter Class Reference
- QTextEdit Class Reference
- QTextEncoder Class Reference
- QTextFormat Class Reference
- QTextFragment Class Reference
- QTextFrame Class Reference
- QTextFrameFormat Class Reference
- QTextImageFormat Class Reference
- QTextInlineObject Class Reference
- QTextItem Class Reference
- QTextLayout Class Reference
- QTextLength Class Reference
- QTextLine Class Reference
- QTextList Class Reference
- QTextListFormat Class Reference
- QTextObject Class Reference
- QTextObjectInterface Class Reference
- QTextOption Class Reference
- QTextStream Class Reference
- QTextTable Class Reference
- QTextTableCell Class Reference
- QTextTableCellFormat Class Reference
- QTextTableFormat Class Reference
- QThread Class Reference
- QThreadPool Class Reference
- QTime Class Reference
- QTimeEdit Class Reference
- QTimeLine Class Reference
- QTimer Class Reference
- QTimerEvent Class Reference
- QToolBar Class Reference
- QToolBox Class Reference
- QToolButton Class Reference
- QToolTip Class Reference
- QTouchEvent Class Reference
- Reference
- QTransform Class Reference
- QTranslator Class Reference
- QTreeView Class Reference
- QTreeWidget Class Reference
- QTreeWidgetItem Class Reference
- QTreeWidgetItemIterator Class Reference
- QUdpSocket Class Reference
- QUndoCommand Class Reference
- QUndoGroup Class Reference
- QUndoStack Class Reference
- QUndoView Class Reference
- QUrl Class Reference
- QUrlInfo Class Reference
- QUuid Class Reference
- QValidator Class Reference
- QVariant Class Reference
- QVariantAnimation Class Reference
- QVBoxLayout Class Reference
- QVector2D Class Reference
- QVector3D Class Reference
- QVector4D Class Reference
- QVideoFrame Class Reference
- QVideoSurfaceFormat Class Reference
- QWaitCondition Class Reference
- QWebDatabase Class Reference
- QWebElement Class Reference
- QWebElementCollection Class Reference
- QWebFrame Class Reference
- QWebHistory Class Reference
- QWebHistoryInterface Class Reference
- QWebHistoryItem Class Reference
- QWebHitTestResult Class Reference
- QWebInspector Class Reference
- QWebPage Class Reference
- QWebPluginFactory Class Reference
- QWebSecurityOrigin Class Reference
- QWebSettings Class Reference
- QWebView Class Reference
- QWhatsThis Class Reference
- QWhatsThisClickedEvent Class Reference
- QWheelEvent Class Reference
- QWidget Class Reference
- QWidgetAction Class Reference
- QWidgetItem Class Reference
- QWindowStateChangeEvent Class Reference
- QWizard Class Reference
- QWizardPage Class Reference
- QWorkspace Class Reference
- QWriteLocker Class Reference
- QX11EmbedContainer Class Reference
- QX11EmbedWidget Class Reference
- QX11Info Class Reference
- QXmlAttributes Class Reference
- QXmlContentHandler Class Reference
- QXmlDeclHandler Class Reference
- QXmlDefaultHandler Class Reference
- QXmlDTDHandler Class Reference
- QXmlEntityResolver Class Reference
- QXmlErrorHandler Class Reference
- QXmlFormatter Class Reference
- QXmlInputSource Class Reference
- QXmlItem Class Reference
- QXmlLexicalHandler Class Reference
- QXmlLocator Class Reference
- QXmlName Class Reference
- QXmlNamePool Class Reference
- QXmlNamespaceSupport Class Reference
- QXmlNodeModelIndex Class Reference
- QXmlParseException Class Reference
- QXmlQuery Class Reference
- QXmlReader Class Reference
- QXmlResultItems Class Reference
- QXmlSchema Class Reference
- QXmlSchemaValidator Class Reference
- QXmlSerializer Class Reference
- QXmlSimpleReader Class Reference
- QXmlStreamAttribute Class Reference
- QXmlStreamAttributes Class Reference
- QXmlStreamEntityDeclaration Class Reference
- QXmlStreamEntityResolver Class Reference
- QXmlStreamNamespaceDeclaration Class Reference
- QXmlStreamNotationDeclaration Class Reference
- QXmlStreamReader Class Reference
- QXmlStreamWriter Class Reference