QT utf-8与gbk编码互转code

Posted 2021-05-14 浅水湾的回眸

QByteArray StrUtf8toGBK(const QString &qStr)
{
    QTextCodec *utf8 = QTextCodec::codecForName("UTF-8");
    QTextCodec::setCodecForLocale(utf8);
    QTextCodec* gbk = QTextCodec::codecForName("gbk");

    //utf8 -> gbk
    //1. utf8 -> unicode
    QString strUnicode= utf8->toUnicode(qStr.toLocal8Bit().data());

    //2. unicode -> gbk
    return gbk->fromUnicode(strUnicode);
}

QByteArray StrGBKtoUtf8(const QString &qStr)
{
    QTextCodec *utf8 = QTextCodec::codecForName("UTF-8");
    QTextCodec::setCodecForLocale(utf8);
    QTextCodec* gbk = QTextCodec::codecForName("gbk");

    //gbk -> utf8
    //1. gbk to unicode
    QString strUnicode=gbk->toUnicode(qStr.toLocal8Bit().data());
    //2. unicode -> utf-8

    return utf8->fromUnicode(strUnicode);
}

void showCode(const QByteArray& qByteArray)
{
    const char* cStr = qByteArray.data();
    printf("===== code [%s]-[%d]=====\\n", cStr, qstrlen(cStr));
}