在线播放实现
实现方法：访问酷狗api接口的到json数据，解析json数据
主要类：
QNetworkAccessManager *managerGetSongInfo;QNetworkAccessManager* managerImportSong;QNetworkRequestQNetworkReply
注：使用需要在pro文件中添加
QT += core gui network multimedia script winextras
废话不多话直接上代码
在线搜索播放代码
onlinewget.h
#ifndef ONLINEWGET_H#define ONLINEWGET_H#include <QWidget>#include <QTableWidget>#include <QPushButton>#include <QDir>#include <QLabel>#include <QNetworkAccessManager>#include <QNetworkRequest>#include <QNetworkReply>#include <QList>#include <QScriptEngine>#include <QScriptValue>#include <QtWinExtras>#include <stdio.h>#include <QStringList>class OnlineWget :public QWidget{Q_OBJECTpublic:explicit OnlineWget(QWidget *parent = 0);~OnlineWget();QTableWidget * songTableWidget;QPushButton * m_pButPlayAllSong;//QPushButton* m_pButInputSong;QPushButton* m_pButMoreCtor;private://struct findResult{QString hash;QString songName;QString singername;QString album_name;QString filesize;QString playPath;QString timelength;QImage image;QString imagePath;}stResultList;signals:void playAllLocalMusic(QList<findResult>);void addOneSongInLIst(findResult);private slots:void importSongs();void mainWgetplayAllLocalMusic();void changeMusicPlayList(int);void slot_get_song_info (QNetworkReply*);void slot_import_song(QNetworkReply*);void on_le_find_returnPressed(QString SearchMesg);private:void getMusicInfo(QString filename);QMap<QString,QString> m_InfoMap;QString initialName;QStringList lrcFile ;//本目录下的所有歌词文件//void initNetwork();//void parseSongInfo(QString json);void parseSongLink(QString json);//解析Json数据 获取歌曲路径void addItemsToResultList();//QNetworkAccessManager *managerGetSongInfo;QNetworkAccessManager* managerImportSong;//QList<findResult> m_listResult;//QStringList findFiles(const QString &startDir, QStringList filters);};#endif // ONLINEWGET_H
onlinewget…cpp
#include "onlinewget.h"OnlineWget::OnlineWget(QWidget *parent):QWidget(parent){setWindowFlags(Qt::Window | Qt::FramelessWindowHint);setFixedSize(800,500); //819,527setAutoFillBackground(true);songTableWidget = new QTableWidget(0, 5, this);songTableWidget->setStyleSheet("border-color:white;\border-style:solid;");songTableWidget->setAutoFillBackground(true);QStringList TableHeader;TableHeader << QStringLiteral("歌曲") << QStringLiteral("歌手")<< QStringLiteral("专辑")<< QStringLiteral("大小");songTableWidget->setHorizontalHeaderLabels(TableHeader);songTableWidget->setFixedSize(760, 460);songTableWidget->move(40, 40);//songTableWidget->setPalette(QPalette(QColor(120, 214, 255, 255)));songTableWidget->setShowGrid(false);songTableWidget->setColumnWidth(0, 300);songTableWidget->setColumnWidth(1, 160);songTableWidget->setColumnWidth(2, 160);songTableWidget->setColumnWidth(3, 100);songTableWidget->setColumnHidden(4,true);songTableWidget->setEditTriggers(QTableWidget::NoEditTriggers);songTableWidget->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);// 设置只能选择单行songTableWidget->setSelectionMode(QAbstractItemView::SingleSelection);songTableWidget->setSelectionBehavior(QAbstractItemView::SelectRows);//整行选中// 设置不显示网格songTableWidget->setFrameShape(QFrame::NoFrame); //设置无边框songTableWidget->setShowGrid(false);connect(songTableWidget, SIGNAL(cellDoubleClicked(int, int)), this, SLOT(changeMusicPlayList(int)));this->setStyleSheet("QPushButton {\color:black;\border-radius:12px;\border-width:1;\border-color:black;\border-style:solid;;\background-color:rgba(0,0,0,0); \}\QPushButton:hover {\color:red;\border-radius:12px;\border-width:1;\border-color:red;\border-style:solid;;\background-color:rgba(0,0,0,0); \}");//播放列表设置//m_musicPlayList = new QMediaPlaylist(this);// m_musicPlayList->setPlaybackMode(QMediaPlaylist::Loop);//QLabel *lab = new QLabel(this);lab->setText("▋ 在线音乐");lab->setGeometry(40,10,100,28);//m_pButPlayAllSong = new QPushButton(this);m_pButPlayAllSong->setText("►播放全部");m_pButPlayAllSong->setGeometry(474,10,92,24);QObject::connect(m_pButPlayAllSong,SIGNAL(clicked(bool)),this,SLOT(mainWgetplayAllLocalMusic()));//// m_pButInputSong = new QPushButton(this);// m_pButInputSong->setText("导入歌曲");// m_pButInputSong->setGeometry(576,10,92,24);// QObject::connect(m_pButInputSong,SIGNAL(clicked(bool)),this,SLOT(importSongs()));//m_pButMoreCtor= new QPushButton(this);m_pButMoreCtor->setText("┄ 更多操作");m_pButMoreCtor->setGeometry(576,10,92,24);//网络初始化initNetwork();////lrcFile= findFiles("./Lyrics", QStringList() << "*.lrc"<<"*krc");//for(int i=0;i<lrcFile.length();i++)//{//qDebug() << lrcFile.at(i);//}}OnlineWget::~OnlineWget(){delete songTableWidget;delete m_pButPlayAllSong;//delete m_pButInputSong;delete m_pButMoreCtor;//delete m_musicPlayList;delete managerGetSongInfo;delete managerImportSong;// delete managerDownloadImage;}void OnlineWget::importSongs(){for(int i =0; i<m_listResult.length();i++ ){QString hash = m_listResult.at(i).hash;//qDebug() << "hash :" <<hash;//获取歌曲链接QNetworkRequest request;request.setUrl(QUrl(QString("/yy/index.php?r=play/getdata&hash=%1").arg(hash)));// QByteArray byteArray;request.setHeader(QNetworkRequest::ContentTypeHeader,"application/x-www-form-urlencoded");request.setRawHeader("Cookie","kg_mid=1001");// byteArray.append("hash=" + hash);// byteArray.append("&r=play/getdata");//managerPlay->post(request, byteArray);managerImportSong->get(request);}}void OnlineWget::mainWgetplayAllLocalMusic(){emit playAllLocalMusic(m_listResult);}void OnlineWget::changeMusicPlayList(int row){if (row >= songTableWidget->rowCount())return;emit addOneSongInLIst(m_listResult.at(row));}void OnlineWget::slot_get_song_info(QNetworkReply *reply){//无错误返回if(reply->error() == QNetworkReply::NoError){QByteArray bytes = reply->readAll(); //获取字节QString result(bytes);//转化为字符串parseSongInfo(result);//解析Json数据addItemsToResultList();//添加结果到搜索列表}reply->deleteLater();importSongs(); //解析歌曲路径到播放列表中}void OnlineWget::slot_import_song(QNetworkReply *reply){//无错误返回if(reply->error() == QNetworkReply::NoError){QByteArray bytes = reply->readAll(); //获取字节QString result(bytes);//转化为字符串parseSongLink(result);//解析Json数据 获取歌曲路径}reply->deleteLater();}void OnlineWget::on_le_find_returnPressed(QString SearchMesg){//清空上一个搜索列表while (songTableWidget->rowCount()){songTableWidget->removeRow(0);//musicPlayList->removeMedia(0);}m_listResult.clear();//m_listResult.clear();//获取输入的文本QString strInput = SearchMesg;//将文本转换为utf-8编码QTextCodec *codec = QTextCodec::codecForName("utf-8");QByteArray byteArrayCodec = codec->fromUnicode(strInput);QByteArray byteArrayPercentEncoded = byteArrayCodec.toPercentEncoding();QString strSongName = QString(byteArrayPercentEncoded);//获取歌曲信息QNetworkRequest request;QString strUrl =QString("/api/v3/search/song?keyword=%1").arg(strSongName);request.setUrl(QUrl(strUrl));managerGetSongInfo->get(request);}void OnlineWget::initNetwork(){managerGetSongInfo= new QNetworkAccessManager(this);managerImportSong = new QNetworkAccessManager(this);//managerStartDownload = new QNetworkAccessManager(this);//managerGetSongLrc = new QNetworkAccessManager(this);//managerDownloadSongLrc = new QNetworkAccessManager(this);connect(managerGetSongInfo, SIGNAL(finished(QNetworkReply*)),this, SLOT(slot_get_song_info(QNetworkReply*)));connect(managerImportSong, SIGNAL(finished(QNetworkReply*)),this, SLOT(slot_import_song(QNetworkReply*)));}void OnlineWget::parseSongInfo(QString json){//从字符串数据转换为Json数据QByteArray byte_array;QJsonParseError json_error;QJsonDocument parse_doucment =QJsonDocument::fromJson(byte_array.append(json), &json_error);//如果没有错误if(json_error.error == QJsonParseError::NoError){if(parse_doucment.isObject()){QJsonObject object = parse_doucment.object();if(object.contains("data")){QJsonValue value_data = object.take("data");if(value_data.isObject()){QJsonObject object_data = value_data.toObject();if(object_data.contains("info")){QJsonValue value_info = object_data.take("info");if(value_info.isArray()){QJsonArray array_info = value_info.toArray();const int size = array_info.size();for(int i=0; i<size; ++i){QJsonValue value_first = array_info.at(i);if(value_first.isObject()){QString songname;QString hash;QString singername;QString album_name;int filesize;QJsonObject object_first = value_first.toObject();if(object_first.contains("filename")){QJsonValue value_filename = object_first.take("filename");songname = value_filename.toString();}if(object_first.contains("hash")){QJsonValue value_hash = object_first.take("hash");hash = value_hash.toString();}if(object_first.contains("singername")){QJsonValue value_singername = object_first.take("singername");singername = value_singername.toString();}if(object_first.contains("album_name")){QJsonValue value_album_name = object_first.take("album_name");album_name = value_album_name.toString();}if(object_first.contains("filesize")){QJsonValue value_filesize = object_first.take("filesize");filesize = value_filesize.toInt();}stResultList.songName = songname;stResultList.hash = hash;stResultList.singername = singername;stResultList.album_name =album_name;stResultList.filesize =QString("%1").arg(filesize/1000);m_listResult.append(stResultList);}}}}}}}}else{qDebug() << "error ... ...";}}void OnlineWget::parseSongLink(QString json){QByteArray byte_array;QJsonParseError json_error;QJsonDocument parse_doucment = QJsonDocument::fromJson(byte_array.append(json), &json_error);if(json_error.error == QJsonParseError::NoError){if(parse_doucment.isObject()){QJsonObject rootObj = parse_doucment.object();if(rootObj.contains("data")){QJsonValue valuedata = rootObj.take("data");if(valuedata.isObject()){QJsonObject object_first = valuedata.toObject();QString play_url;int timelength;QString img;if(object_first.contains("play_url")){QJsonValue value_filename = object_first.take("play_url");play_url=value_filename.toString();//m_musicPlayList->addMedia(QUrl(value_filename.toString()));//qDebug() <<play_url;}if(object_first.contains("timelength")){QJsonValue value_timelength = object_first.take("timelength");timelength = value_timelength.toInt();}if(object_first.contains("img")){QJsonValue value_img = object_first.take("img");img = value_img.toString();}findResult tmpInfo;if(object_first.contains("hash")){QJsonValue value_filename = object_first.take("hash");for(int i=0 ;i<m_listResult.length();i++){if(m_listResult.at(i).hash == value_filename.toString() ){int time =timelength/1000;tmpInfo.songName =m_listResult.at(i).songName;tmpInfo.singername =m_listResult.at(i).singername;tmpInfo.hash =m_listResult.at(i).hash;tmpInfo.playPath = play_url;tmpInfo.timelength =QString("%1:%2").arg(time/60).arg(time%60,2,10,QChar('0'));tmpInfo.album_name = m_listResult.at(i).album_name ;tmpInfo.imagePath =img;m_listResult.replace(i,tmpInfo);break;}}}if(object_first.contains("lyrics")){for(int i=0;i<lrcFile.length();i++){if( lrcFile.at(i) == QString("%1.lrc").arg(tmpInfo.songName))return;}QJsonValue value_lyrics= object_first.take("lyrics");QByteArray byteArray = value_lyrics.toString().toUtf8();if(byteArray.size() ==0)return;QFile *m_fileLrc = new QFile(this);m_fileLrc->setFileName(QString("./Lyrics/%1.lrc").arg(tmpInfo.songName));m_fileLrc->open(QIODevice::WriteOnly);m_fileLrc->write(QString::fromUtf8(byteArray).toStdString().c_str());m_fileLrc->close();m_fileLrc->deleteLater();m_fileLrc = nullptr;}}}}}}void OnlineWget::addItemsToResultList(){if(!m_listResult.isEmpty()){const int tableRow = m_listResult.count();for(int row=0; row<tableRow; row++){findResult info = m_listResult.at(row);int rownum = songTableWidget->rowCount();songTableWidget->insertRow(rownum);songTableWidget->setItem(rownum, 0, new QTableWidgetItem(info.songName));songTableWidget->setItem(rownum, 1, new QTableWidgetItem(info.singername));songTableWidget->setItem(rownum, 2, new QTableWidgetItem(info.album_name));songTableWidget->setItem(rownum, 3, new QTableWidgetItem(info.filesize));songTableWidget->setItem(rownum, 4, new QTableWidgetItem(info.hash));}}}QStringList OnlineWget::findFiles(const QString &startDir, QStringList filters){QStringList names;QDir dir(startDir);//搜索当前目录符合条件的文件foreach (QString file, dir.entryList(filters, QDir::Files))names += file;//搜索当前目录的子目录符合条件的文件foreach (QString subdir, dir.entryList(QDir::AllDirs | QDir::NoDotAndDotDot))names += findFiles(startDir + '/' + subdir, filters);return names;}
