Linetool/file_md5.cpp

#include <qsettings.h>
#include <qfiledialog.h>
#include <qtextstream.h>
#include <qfile.h>
#include <QTextCodec>
#include <QCryptographicHash>
#include "file_md5.h"

void file_md5(QString fileName)
{

    if (fileName.isEmpty())
    {
        return;
    }
    QByteArray bytes;
    QByteArray byte_md;
    QFile qfile_in(fileName);

    //读到文件数据
    qfile_in.setFileName(fileName);
    if (!qfile_in.open(QIODevice::ReadOnly))
    {
        return;
    }
    bytes.clear();
    bytes=qfile_in.readAll();
    qDebug("read size=%d\n",bytes.size());
    qfile_in.close();
    //生成输出文件名
    QString out_fileName = fileName.replace(".bin", "_IAP.bin");

    QFile qfile_out(out_fileName);
    qfile_out.setFileName(out_fileName);



    //qDebug("%s", fileName.toUtf8());

    //打开输出文件
    if (!qfile_out.open(QIODevice::WriteOnly))
    {
        return;
    }
    qDebug("write size=%d\n",bytes.size());
    //将原始文件写入到输出文件
    qfile_out.write(bytes);
    //清空校验值
    byte_md.clear();
    //生成校验值
    byte_md = QCryptographicHash::hash(bytes, QCryptographicHash::Md5);
    qDebug("md5 size=%d\n",byte_md.size());
    //将校验值追加文件尾部
    qfile_out.write(byte_md);
    //关闭文件
    qfile_out.close();



}