QT界面开发-GBK字符编码转换(中文乱码问题)

转载自 https://chuanke.baidu.com/v4509752-209060-1284466.html

GBK.h

#ifndef _QT_GBK_H
#define _QT_GBK_H


#include <QString>
#include <QTextCodec>
#include <string>
using std::string;

class GBK
{
public:
    // QString(Unicode) -> std::string (GBK)
    static string FromUnicode(const QString& qstr)
    {
        QTextCodec* pCodec = QTextCodec::codecForName("gb2312");
        if(!pCodec) return "";    

        QByteArray arr = pCodec->fromUnicode(qstr);
        string cstr = arr.data();
        return cstr;
    }

    // std::string (GBK) -> QString(Unicode)
    static QString ToUnicode(const string& cstr)
    {
        QTextCodec* pCodec = QTextCodec::codecForName("gb2312");
        if(!pCodec) return "";

        QString qstr = pCodec->toUnicode(cstr.c_str(), cstr.length());
        return qstr;
    }

};


#endif