QT4.6中文GB2312与utf-8和unicode及URL encoding %编码汇总

QT4.6中文GB2312与utf-8和unicode及URL encoding %编码汇总

说明： 转载

windows中ie地址栏写“我们”发送到服务器端会变为“%CE%D2%C3%C7”，是GB2312转换成URL 百分号编码的形式
ubuntu中firefox地址栏写“我们”发送到服务器变成"%E6%88%91%E4%BB%AC"，是UTF-8转换成URL 百分号编码的形式

下面分享汇总后的转换代码：（我的环境：ubuntu9.10 QT4.6）
//Ubuntu firefox http get "我们" %E6%88%91%E4%BB%AC UTF-8
//Windows ie http get "我们" %CE%D2%C3%C7 GB2312
char* s="0x我们"; //UTF-8 char*
QString strT1="0x%CE%D2%C3%C7"; //GB2312的URL百分号编码
QByteArray baT1,baT2,baT3,baT4;
PercentEncoding2ByteArray(strT1, baT1); //自己写的函数，由于QUrl::fromPercentEncoding仅适用UTF-8的URL编码

strT1=QTextCodec::codecForName("GB2312")->toUnicode(baT1); //GB2312's QByteArray Convert to QString Unicode
baT2=QTextCodec::codecForName("GB2312")->fromUnicode(strT1); //QString Unicode convert to GB2312 QByteArray
QString strT2,strT3,strT4,strT5;
strT2=QTextCodec::codecForName("UTF-8")->toUnicode("0x我们"); //UTF-8 Char* to Unicode QString
baT3=QTextCodec::codecForName("UTF-8")->fromUnicode(strT2); //Unicode QString to UTF-8 QByteArray
strT3=QTextCodec::codecForName("UTF-8")->toUnicode(s); //UTF-8 Char* to Unicode QString
strT4=QUrl::toPercentEncoding(QString::fromLocal8Bit(s)); //UTF-8 Char* to PercentEncoding (UTF-8 format)
strT5=QUrl::fromPercentEncoding("0x%E6%88%91%E4%BB%AC"); //PercentEncoding (UTF-8 format) to Unicode

baT4=QTextCodec::codecForName("GB2312")->fromUnicode(QTextCodec::codecForName("UTF-8")->toUnicode(s)); //UTF-8 Char* to GB2312 QByteArray

另附一个小函数：(用于GB2312的URL百分号编码转换)
void PercentEncoding2ByteArray(QString strInput, QByteArray & ByteArrayOut)
{
for(int i=0; i<strInput.length();)
{
if (0==QString::compare(strInput.mid(i,1), QString("%")))
{
if ((i+2)<strInput.length())
{
ByteArrayOut.append(strInput.mid(i+1,2).toShort(0,16));
i=i+3;
}
else
{
ByteArrayOut.append(strInput.mid(i,1));
i++;
}
}
else
{
ByteArrayOut.append(strInput.mid(i,1));
i++;
}
}//For end

}// PercentEncoding2ByteArray end