Qt4中有没有用于将域名解析成IP的类？ [复制链接]

因为要写的一个程序中需要有一个类似nslookup的功能，就是将输入的域名转换为IP并显示出来。由于不想使用 C函数来实现该功能，所以想问一下Qt4中有没有用于将域名解析成IP的类？

QHostInfo

Detailed Description

The QHostInfo class provides static functions for host name lookups.

QHostInfo uses the lookup mechanisms provided by the operating system to find the IP address(es) associated with a host name, or the host name associated with an IP address. The class provides two static convenience functions: one that works asynchronously and emits a signal once the host is found, and one that blocks and returns a QHostInfo object.

To look up a host's IP addresses asynchronously, call lookupHost(), which takes the host name or IP address, a receiver object, and a slot signature as arguments and returns an ID. You can abort the lookup by calling abortHostLookup() with the lookup ID.

Example:

// To find the IP address of qtsoftware.com
QHostInfo::lookupHost("qtsoftware.com",
                       this, SLOT(printResults(QHostInfo)));

// To find the host name for 4.2.2.1
QHostInfo::lookupHost("4.2.2.1",
                       this, SLOT(printResults(QHostInfo)));

Thanks very much!