多线程内存泄漏？

coderchenjingui 2012-09-19 05:56:24



    //articleNameList需要下载的列表

    foreach(QString aName,articleNameList)

   {

        downLoadThread *thread=new downLoadThread;

        //articleMap为QMap类型，key名 value：url

        thread->initArticle(aName,articleMap[aName],"C:\\Users\\Administrator\\Desktop\\blog\\");

        connect(thread,SIGNAL(finished()),this,SLOT(deleteThread()));

        thread->start();

    }

这是下载线程的主要函数：



//设置 名，url，保存目录

void downLoadThread::initArticle(const QString &name, const QString &url,const QString& saveDir)

{

    articleName=name;

    articleUrl=url;

    savePathDir=saveDir;

}



void downLoadThread::run()

{

    QNetworkAccessManager manager;

    connect(&manager,SIGNAL(finished(QNetworkReply*)),this,SLOT(requestFinished(QNetworkReply*)));

    manager.get(QNetworkRequest(QUrl(articleUrl)));

    exec();

}

//下载，打印pdf

void downLoadThread::requestFinished(QNetworkReply *reply)

{

    QString htmlText=QString::fromUtf8(reply->readAll());

    QRegExp reg(tr("class=\"article_content\">(.*)</div>"));

    reg.setMinimal(true);

    if(htmlText.indexOf(reg)!=-1)

    {

        QTextDocument textDocument;

        textDocument.setHtml(reg.cap(1));

        QPrinter printer(QPrinter::ScreenResolution);

        printer.setOutputFormat(QPrinter::PdfFormat);

        printer.setOutputFileName(savePathDir+articleName+".pdf");

        printer.setPageSize(QPrinter::Custom);

        printer.setPageMargins(4,1,6,1,QPrinter::Millimeter);

        printer.setOrientation(QPrinter::Portrait);

        textDocument.print(&printer);

    }

    exit();

}