Qt Network

Qt Network 模块为使用 TCP/IP协议的应用程序提供一组API. 借助HTTP协议的请求, 缓存, 数据发送等操作由C++类处理.

开始使用

To use Qt Network classes,add this directive into the C++ files:

  #include <QtNetwork>

To link against the Qt Network module, add this line to the project file:

  QT += network

文章和指南

下列文章包含Qt网络模块设置及应用程序如何使用网络模块.

• Network Programming with Qt - Programming applications with networking capabilities
• Bearer Management - An API to control the system's connectivity state
• Secure Sockets Layer (SSL) Classes - Classes for secure communication over network sockets

API Reference

These are links to the API reference materials.

• C++ Classes

Licenses and Attributions

Qt Network is available under commercial licenses from The Qt Company. In addition, it is available under the GNU Lesser General Public License, version 3, or the GNU General Public License, version 2. See Qt Licensing for further details.

Qt Network can use the OpenSSL Toolkit as a backend. The library is then linked against OpenSSL in a way that requires compliance with the OpenSSL License. To allow linking OpenSSL with Qt Network under the GPL, following exceptions to the GPL do apply:

  In addition, as a special exception, the copyright holders listed above give
  permission to link the code of its release of Qt with the OpenSSL project's
  "OpenSSL" library (or modified versions of the "OpenSSL" library that use the
  same license as the original version), and distribute the linked executables.

  You must comply with the GNU General Public License version 2 in all
  respects for all of the code used other than the "OpenSSL" code.  If you
  modify this file, you may extend this exception to your version of the file,
  but you are not obligated to do so.  If you do not wish to do so, delete
  this exception statement from your version of this file.

Also note shipping OpenSSL might cause Import and Export Restrictions to apply.