添加下载数据库分析

MultiplethreadDownload/process.csv

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MultiplethreadDownload/widget.cpp

@@ -22,7 +22,7 @@ Widget::Widget(QWidget *parent)
     ui->setupUi(this);
 
     // 设置URL链接验证器
-    QRegExp regex(R"(http[s]://.+)");
+    QRegExp regex(R"(https?:\/\/.+)");
     auto *validator = new QRegExpValidator(regex, nullptr);
     ui->urlInput->setValidator(validator);
 
@@ -81,6 +81,7 @@ qint64 Widget::getFileSize(const QString& url)
             && reply->hasRawHeader(QString("Content-Length").toLocal8Bit())) {
         fileSize = reply->header(QNetworkRequest::ContentLengthHeader).toUInt();
     }
+    qDebug() << "文件大小为：" << fileSize;
     reply->deleteLater();
     return fileSize;
 }
@@ -137,6 +138,7 @@ void Widget::multiDownload(const QString &url, qint64 fileSize, const QString &f
     }
     file.resize(fileSize);
 
+    qDebug() << "开始下载文件";
     // 任务等分
     qint64 segmentSize = fileSize / threadCount;
     QVector<QPair<qint64, qint64>> vec(threadCount);
@@ -158,14 +160,17 @@ void Widget::multiDownload(const QString &url, qint64 fileSize, const QString &f
         QNetworkReply *reply = mgr.get(request);
         qint64 writePos = pair.first;
         QMutex lock;
-        qDebug() << "开始下载数据：" << QString(" %1~%2 ").arg(pair.first).arg(pair.second);
+        qDebug() << "开始下载数据：" << QString(" %1~%2 -> writePos Start %3")
+            .arg(pair.first).arg(pair.second).arg(writePos);
         connect(reply, &QNetworkReply::readyRead, [&lock, &writePos, &file, &bytesReceived, reply](){
             QByteArray data = reply->readAll();
             lock.lock();
-            qDebug() << "调整文件的数据指针："  << writePos;
+//            qDebug() << "调整文件的数据指针："  << writePos;
             file.seek(writePos);
             file.write(data);
             bytesReceived += data.size();
+            qDebug() << QString("%1, %2, %3")
+                        .arg(writePos).arg(bytesReceived).arg(data.size());
             lock.unlock();
             writePos += data.size();
         });
@@ -209,6 +214,7 @@ void Widget::on_downloadBtn_clicked()
     }
 
     ui->downloadBtn->setEnabled(false);
+    ui->downProgressBar->setValue(0);
     qint64 fileSize = getFileSize(url);
     QString sizeText = fileSize == 0 ? "未知大小" : Utils::sizeFormat(fileSize);
     ui->filesizeLabel->setText(sizeText);

MultiplethreadDownload/widget.ui

@@ -25,6 +25,9 @@
   <property name="windowTitle">
    <string>多线程下载文件Demo</string>
   </property>
+  <property name="styleSheet">
+   <string notr="true">font-family: &quot;Microsoft Yahei&quot;;</string>
+  </property>
   <layout class="QVBoxLayout" name="verticalLayout">
    <property name="sizeConstraint">
     <enum>QLayout::SetDefaultConstraint</enum>
@@ -111,6 +114,11 @@
      </item>
      <item row="3" column="2">
       <widget class="QCheckBox" name="dwnFinishedOpenChbox">
+       <property name="font">
+        <font>
+         <family>Microsoft Yahei</family>
+        </font>
+       </property>
        <property name="text">
         <string>下载完成是否打开</string>
        </property>