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一、前言在早期开发的软件中,尤其是初学者入门者写的软件,软件运行久了,难免遇到意外崩溃的时候,可是大部分的运行设备可能在现场客户那,需要记住每一次从软件启动后到软件意外关闭前的运行时间,需要记录的信息包括:编号+开始时间+结束时间+已运行时间,每次完整的运行过程只产生一条记录,每次运行时间改变以后更新当前这条记录即可这样就可以确切的了解到软件在现场的真实运行情况是否糟糕,如果没有这个记录(当然可以选择记录存储到数据库),程序又重启恢复了,也不知道到底每次运行了多久,从几点到几点为了写的简单点,不干扰原有的数据库文件,我一般选择输出到文本文件目前这边的文章没法贴下载链接等信息,有需要可以留言索要二、实现的功能从软件启动后开始计时统计内容包括编号+开始时间+结束时间+已运行时间每次软件运行过程只记录一条记录自动按照年月日命名日志文件统计间隔可以自由设定保存目录可以自由设定三、效果图四、完整代码#include \"saveruntime.h\"#include \"qmutex.h\"#include \"qapplication.h\"#include \"qtimer.h\"#include \"qfile.h\"#include \"qtextstream.h\"#include \"qstringlist.h\"#ifdef Q_OS_WIN#define NEWLINE \"\r\n\"#else#define NEWLINE \"\n\"#endifQScopedPointer<SaveRunTime> SaveRunTime::self;SaveRunTime SaveRunTime::Instance(){ if (self.isNull()) { static QMutex mutex; QMutexLocker locker(&mutex); if (self.isNull()) { self.reset(new SaveRunTime); } } return self.data();}SaveRunTime::SaveRunTime(QObject parent) : QObject(parent){ path = qApp->applicationDirPath(); QString str = qApp->applicationFilePath(); QStringList list = str.split(\"/\"); name = list.at(list.count() - 1).split(\".\").at(0); saveInterval = 1 60 1000; startTime = QDateTime::currentDateTime(); timerSave = new QTimer(this); timerSave->setInterval(saveInterval); connect(timerSave, SIGNAL(timeout()), this, SLOT(saveLog()));}void SaveRunTime::start(){ timerSave->start(); initLog(); appendLog(); saveLog();}void SaveRunTime::stop(){ timerSave->stop();}void SaveRunTime::getDiffValue(const QDateTime &startTime, const QDateTime &endTime, int &day, int &hour, int &minute){ qint64 sec = startTime.secsTo(endTime); day = hour = minute = 0; int seconds = 0; while (sec > 0) { seconds++; if (seconds == 60) { minute++; seconds = 0; } if (minute == 60) { hour++; minute = 0; } if (hour == 24) { day++; hour = 0; } sec--; }}void SaveRunTime::initLog(){ //判断当前年份的记事本文件是否存在,不存在则新建并且写入标题 //存在则自动读取最后一行的id号 记事本文件格式内容 //幢号 开始时间 结束时间 已运行时间 //1 2016-01-01 12:33:33 2016-02-05 12:12:12 day: 0 hour: 0 minute: 0 logFile = QString(\"%1/%2_runtime_%3.txt\").arg(path).arg(name).arg(QDate::currentDate().year()); QFile file(logFile); if (file.size() == 0) { if (file.open(QFile::WriteOnly | QFile::Text)) { QString strID = QString(\"%1\t\").arg(\"编号\"); QString strStartTime = QString(\"%1\t\t\").arg(\"开始时间\"); QString strEndTime = QString(\"%1\t\t\").arg(\"结束时间\"); QString strRunTime = QString(\"%1\").arg(\"已运行时间\"); QString line = strID + strStartTime + strEndTime + strRunTime; QTextStream stream(&file); stream << line << NEWLINE; file.close(); lastID = 0; } } else { if (file.open(QFile::ReadOnly)) { QString lastLine; while (!file.atEnd()) { lastLine = file.readLine(); } file.close(); QStringList list = lastLine.split(\"\t\"); lastID = list.at(0).toInt(); } } lastID++;}void SaveRunTime::appendLog(){ logFile = QString(\"%1/%2_runtime_%3.txt\").arg(path).arg(name).arg(QDate::currentDate().year()); QFile file(logFile); //写入当前首次运行时间 if (file.open(QFile::WriteOnly | QFile::Append | QFile::Text)) { QString strID = QString(\"%1\t\").arg(lastID); QString strStartTime = QString(\"%1\t\").arg(startTime.toString(\"yyyy-MM-dd HH:mm:ss\")); QString strEndTime = QString(\"%1\t\").arg(QDateTime::currentDateTime().toString(\"yyyy-MM-dd HH:mm:ss\")); int day, hour, minute; getDiffValue(startTime, QDateTime::currentDateTime(), day, hour, minute); QString strRunTime = QString(\"%1 天 %2 时 %3 分\").arg(day).arg(hour).arg(minute); QString line = strID + strStartTime + strEndTime + strRunTime; QTextStream stream(&file); stream << line << NEWLINE; file.close(); }}void SaveRunTime::saveLog(){ //每次保存都是将之前的所有文本读取出来,然后替换最后一行即可 logFile = QString(\"%1/%2_runtime_%3.txt\").arg(path).arg(name).arg(QDate::currentDate().year()); QFile file(logFile); //如果日志文件不存在,则初始化一个日志文件 if (file.size() == 0) { initLog(); appendLog(); return; } if (file.open(QFile::ReadWrite)) { //一行行读取到链表 QStringList content; while (!file.atEnd()) { content.append(file.readLine()); } //重新清空文件 file.resize(0); //如果行数小于2则返回 if (content.count() < 2) { file.close(); return; } QString lastLine = content.last(); QStringList list = lastLine.split(\"\t\"); //计算已运行时间 int day, hour, minute; getDiffValue(startTime, QDateTime::currentDateTime(), day, hour, minute); QString strRunTime = QString(\"%1 天 %2 时 %3 分\").arg(day).arg(hour).arg(minute); //重新拼接最后一行 list[2] = QDateTime::currentDateTime().toString(\"yyyy-MM-dd HH:mm:ss\"); list[3] = strRunTime; lastLine = list.join(\"\t\"); //重新替换最后一行并写入新的数据 content[content.count() - 1] = lastLine; QTextStream stream(&file); stream << content.join(\"\") << NEWLINE; file.close(); }}void SaveRunTime::setPath(const QString &path){ if (this->path != path) { this->path = path; }}void SaveRunTime::setName(const QString &name){ if (this->name != name) { this->name = name; }}void SaveRunTime::setSaveInterval(int saveInterval){ if (this->saveInterval != saveInterval) { this->saveInterval = saveInterval; timerSave->setInterval(saveInterval); }}
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