# QLocalServer Class Reference
## [[QtNetwork](index.htm) module]
该QLocalServer类提供了一个基于本地套接字服务器。[More...](#details)
继承[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
该QLocalServer类提供了一个基于本地套接字服务器。
这个类使得它可以接受传入本地套接字连接。
Call [listen](qlocalserver.html#listen)（ ）让服务器开始侦听在指定的键进入的连接。该[newConnection](qlocalserver.html#newConnection)（ ）信号，然后每个客户端连接到服务器时发出的。
Call [nextPendingConnection](qlocalserver.html#nextPendingConnection)（ ）接受挂起的连接作为一个连接[QLocalSocket](qlocalsocket.html)。该函数返回一个指针，指向一个[QLocalSocket](qlocalsocket.html)可以用于与客户机进行通信。
如果发生错误，[serverError](qlocalserver.html#serverError)（）返回的错误的类型，并且[errorString](qlocalserver.html#errorString)（ ）可以被调用来获取发生了什么可读的描述。
当侦听连接，服务器正在侦听的名称，可通过[serverName](qlocalserver.html#serverName)（ ） 。
调用[close](qlocalserver.html#close)（ ）使得QLocalServer停止侦听传入的连接。
虽然QLocalServer是专为一个事件循环使用，它可以使用它没有之一。在这种情况下，您必须使用[waitForNewConnection](qlocalserver.html#waitForNewConnection)（ ） ，这阻止，直到一个连接可用或者超时。
* * *
## Method Documentation
```
QLocalServer.__init__ (self, QObject parent = None)
```
该_parent_的说法，如果不是没有，原因_self_通过Qt的，而不是PyQt的拥有。
创建一个新的本地套接字服务器与给定_parent_。
**See also** [listen](qlocalserver.html#listen)（ ） 。
```
QLocalServer.close (self)
```
停止侦听传入的连接。现有的连接将不受影响，但任何新的连接将被拒绝。
**See also** [isListening](qlocalserver.html#isListening)（）和[listen](qlocalserver.html#listen)（ ） 。
```
QString QLocalServer.errorString (self)
```
返回人类可读的消息恰当报告的当前错误[serverError](qlocalserver.html#serverError)（ ） 。如果没有合适的字符串是可用的，则返回一个空字符串。
**See also** [serverError](qlocalserver.html#serverError)（ ） 。
```
QString QLocalServer.fullServerName (self)
```
返回该服务器监听的完整路径。
注：这是具体平台
**See also** [listen](qlocalserver.html#listen)（）和[serverName](qlocalserver.html#serverName)（ ） 。
```
bool QLocalServer.hasPendingConnections (self)
```
返回True ，如果服务器有一个挂起的连接，否则返回False 。
**See also** [nextPendingConnection](qlocalserver.html#nextPendingConnection)（）和[setMaxPendingConnections](qlocalserver.html#setMaxPendingConnections)（ ） 。
```
QLocalServer.incomingConnection (self, sip.voidptr socketDescriptor)
```
这个虚函数被调用[QLocalServer](qlocalserver.html)当一个新的连接可用。_socketDescriptor_对于接受连接的本地套接字描述符。
该基地实现创建一个[QLocalSocket](qlocalsocket.html)，设置套接字描述符，然后存储[QLocalSocket](qlocalsocket.html)在挂起连接的内部清单。最后[newConnection](qlocalserver.html#newConnection)（）被发射。
重新实现这个函数来改变服务器的行为，当一个连接可用。
**See also** [newConnection](qlocalserver.html#newConnection)（ ）[nextPendingConnection](qlocalserver.html#nextPendingConnection)（）和[QLocalSocket.setSocketDescriptor](qlocalsocket.html#setSocketDescriptor)（ ） 。
```
bool QLocalServer.isListening (self)
```
如果服务器正在侦听传入连接，否则为False ，则返回True 。
**See also** [listen](qlocalserver.html#listen)（）和[close](qlocalserver.html#close)（ ） 。
```
bool QLocalServer.listen (self, QString name)
```
告诉服务器侦听传入的连接_name_。如果服务器当前正在侦听那么它将返回False 。返回True成功，否则为False 。
_name_可以是单一的名称和[QLocalServer](qlocalserver.html)将确定正确的特定于平台的路径。[serverName](qlocalserver.html#serverName)（ ）将返回传递到听的名字。
通常你会只是通过像“foo”的名称，但在Unix上，这也可能是诸如“ / tmp目录/富”的路径，在Windows上，这可能是一个管道的路径，例如“ \ \ \管道\富” 。对于以下路径的VxWorks必须始终使用“ / comp/socket/0xNumber ”，其中“ 0xNumber ”是十六进制格式的16位数字的字符串表示形式。例如“ / comp/socket/0x00AA ” 。
注意：在Unix上，如果不关闭服务器崩溃听会失败， AddressInUseError 。创建该文件应该被删除新服务器。在Windows两个本地服务器可以听同一管道的同时，但任何连接将转到服务器之一。
**See also** [serverName](qlocalserver.html#serverName)（ ）[isListening](qlocalserver.html#isListening)（）和[close](qlocalserver.html#close)（ ） 。
```
int QLocalServer.maxPendingConnections (self)
```
返回未决接受的连接的最大数目。默认值是30 。
**See also** [setMaxPendingConnections](qlocalserver.html#setMaxPendingConnections)（）和[hasPendingConnections](qlocalserver.html#hasPendingConnections)（ ） 。
```
QLocalSocket QLocalServer.nextPendingConnection (self)
```
[](qlocalsocket.html)
[返回的连接下一个待连接](qlocalsocket.html)[QLocalSocket](qlocalsocket.html)对象。
套接字被作为服务器的一个子创建的，这意味着它被自动删除时[QLocalServer](qlocalserver.html)对象被销毁。它仍然是一个好主意，明确地删除的对象，当你用它做，以避免浪费内存。
如果这个函数被调用时，有没有挂起的连接则返回0 。
**See also** [hasPendingConnections](qlocalserver.html#hasPendingConnections)（ ）[newConnection](qlocalserver.html#newConnection)（）和[incomingConnection](qlocalserver.html#incomingConnection)（ ） 。
```
bool QLocalServer.removeServer (QString name)
```
删除可能导致调用任何服务器实例[listen](qlocalserver.html#listen)（）失败，如果成功返回True，否则返回False 。此功能是为了从崩溃中，当以前的服务器实例还没有被清理回收。
在Windows中，这个函数不做任何事情;在Unix上，它消除由给定的套接字文件_name_。
**Warning:**要小心，以避免删除运行实例的插座。
此功能被引入Qt的4.5 。
```
QAbstractSocket.SocketError QLocalServer.serverError (self)
```
[
最后返回NOERROR或发生错误的类型。
](qabstractsocket.html#SocketError-enum)
[**See also**](qabstractsocket.html#SocketError-enum) [errorString](qlocalserver.html#errorString)（ ） 。
```
QString QLocalServer.serverName (self)
```
返回如果服务器正在监听等待连接的服务器名，否则返回的QString （ ）
**See also** [listen](qlocalserver.html#listen)（）和[fullServerName](qlocalserver.html#fullServerName)（ ） 。
```
QLocalServer.setMaxPendingConnections (self, int numConnections)
```
设置挂起接受的最大连接数_numConnections_。[QLocalServer](qlocalserver.html)将接受不超过_numConnections_前传入的连接[nextPendingConnection](qlocalserver.html#nextPendingConnection)（）被调用。
注：即使[QLocalServer](qlocalserver.html)将停止接受新的连接后，它已经达到了挂起连接的最大数量，操作系统可能仍然让他们在队列中，这将导致客户端的信号，它是连通的。
**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_毫秒或直到传入的连接是可用的。返回True如果连接可用，否则返回False 。如果操作超时，_timedOut_不为0 ， * TIMEDOUT将被设置为True。
这是一个阻塞函数调用。它的使用是不明智的单线程GUI应用程序，因为整个应用程序将停止响应，直到函数返回。当没有事件循环可用waitForNewConnection （ ）是最有用。
非阻塞的替代方法是连接到[newConnection](qlocalserver.html#newConnection)（）信号。
如果毫秒为-1 ，此功能将不会超时。
**See also** [hasPendingConnections](qlocalserver.html#hasPendingConnections)（）和[nextPendingConnection](qlocalserver.html#nextPendingConnection)（ ） 。
* * *
## Qt Signal Documentation
```
void newConnection ()
```
这是该信号的默认超载。
每当一个新的连接是可用的，这个信号被发射。
**See also** [hasPendingConnections](qlocalserver.html#hasPendingConnections)（）和[nextPendingConnection](qlocalserver.html#nextPendingConnection)（ ） 。
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- 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