Qt数据库应用之通用数据库同步

#include "frmdbupload.h"
#include "ui_frmdbupload.h"
#include "quihelper.h"
#include "dbconnthread.h"

frmDbUpload::frmDbUpload(QWidget *parent) : QWidget(parent), ui(new Ui::frmDbUpload)
{
    ui->setupUi(this);
    this->initForm();
    this->initConfig();
}

frmDbUpload::~frmDbUpload()
{
    delete ui;
}

void frmDbUpload::initForm()
{
    ui->frame->setFixedWidth(AppConfig::RightWidth);

    maxCount = 100;
    currentCount = 0;

    timer = new QTimer(this);
    timer->setInterval(1000);
    connect(timer, SIGNAL(timeout()), this, SLOT(on_btnDo_clicked()));

    //实例化数据库通信类
    dbConn = new DbConnThread(this);
    dbConn->setDbFlag("云端");
    connect(dbConn, SIGNAL(debug(QString)), this, SLOT(debug(QString)));
    connect(dbConn, SIGNAL(error(QString)), this, SLOT(error(QString)));
}

void frmDbUpload::initConfig()
{
    ui->cboxDbType->addItems(DbHelper::getDbType());
    ui->cboxDbType->setCurrentIndex(ui->cboxDbType->findText(AppConfig::DbType5));
    connect(ui->cboxDbType, SIGNAL(currentIndexChanged(int)), this, SLOT(saveConfig()));

    ui->txtDbName->setText(AppConfig::DbName5);
    connect(ui->txtDbName, SIGNAL(textChanged(QString)), this, SLOT(saveConfig()));

    ui->txtHostName->setText(AppConfig::HostName5);
    connect(ui->txtHostName, SIGNAL(textChanged(QString)), this, SLOT(saveConfig()));

    ui->txtHostPort->setText(QString::number(AppConfig::HostPort5));
    connect(ui->txtHostPort, SIGNAL(textChanged(QString)), this, SLOT(saveConfig()));

    ui->txtUserName->setText(AppConfig::UserName5);
    connect(ui->txtUserName, SIGNAL(textChanged(QString)), this, SLOT(saveConfig()));

    ui->txtUserPwd->setText(AppConfig::UserPwd5);
    connect(ui->txtUserPwd, SIGNAL(textChanged(QString)), this, SLOT(saveConfig()));
}

void frmDbUpload::saveConfig()
{
    AppConfig::DbType5 = ui->cboxDbType->currentText();
    AppConfig::DbName5 = ui->txtDbName->text();
    AppConfig::HostName5 = ui->txtHostName->text();
    AppConfig::HostPort5 = ui->txtHostPort->text().toInt();
    AppConfig::UserName5 = ui->txtUserName->text();
    AppConfig::UserPwd5 = ui->txtUserPwd->text();
    AppConfig::writeConfig();
}

void frmDbUpload::debug(const QString &msg)
{
    DbHelper::appendMsg(ui->txtMain, maxCount, currentCount, 0, msg);
}

void frmDbUpload::error(const QString &msg)
{
    DbHelper::appendMsg(ui->txtMain, maxCount, currentCount, 1, msg);
}

void frmDbUpload::on_btnOpen_clicked()
{
    if (ui->btnOpen->text() == "打开数据库") {
        DbInfo dbInfo;
        dbInfo.connName = this->objectName();
        dbInfo.dbName = AppConfig::DbName5;
        dbInfo.hostName = AppConfig::HostName5;
        dbInfo.hostPort = AppConfig::HostPort5;
        dbInfo.userName = AppConfig::UserName5;
        dbInfo.userPwd = AppConfig::UserPwd5;

        QString dbType = AppConfig::DbType5.toUpper();
        if (dbType == "SQLITE") {
            dbInfo.dbName = DbHelper::getDbDefaultFile();
        }

        dbConn->setConnInfo(DbHelper::getDbType(dbType), dbInfo);
        if (dbConn->openDb()) {
            dbConn->start();
            ui->btnOpen->setText("关闭数据库");
        } else {
            QString error = dbConn->getDatabase().lastError().text();
            QUIHelper::showMessageBoxError("打开数据库失败!\n" + error, 3);
        }
    } else {
        dbConn->stop();
        dbConn->closeDb();
        ui->btnOpen->setText("打开数据库");
        on_btnClear_clicked();
    }

    QTimer::singleShot(100, this, SLOT(on_btnInit_clicked()));
    QTimer::singleShot(1000, this, SLOT(on_btnStart_clicked()));
}

void frmDbUpload::on_btnCopy_clicked()
{
    //将数据库设置参数一键粘贴过来
    ui->cboxDbType->setCurrentIndex(ui->cboxDbType->findText(AppConfig::LocalDbType));
    ui->txtDbName->setText(AppConfig::LocalDbName);
    ui->txtHostName->setText(AppConfig::LocalHostName);
    ui->txtHostPort->setText(QString::number(AppConfig::LocalHostPort));
    ui->txtUserName->setText(AppConfig::LocalUserName);
    ui->txtUserPwd->setText(AppConfig::LocalUserPwd);
}

void frmDbUpload::on_btnInit_clicked()
{
    if (!dbConn->getOk()) {
        return;
    }

    //填充默认设备的初始数据
    QStringList sqls;
    //首先插入删除表语句
    sqls << "delete from NodeData";
    //再插入新建语句
    for (int i = 1; i < 10; i++) {
        QString sql1 = QString("insert into NodeData(PositionID,NodeValue,NodeStatus,SaveTime)");
        QString sql2 = QString("values('AT-1000%1','0',0,'%2')").arg(i).arg(DATETIME);
        sqls << (sql1 + " " + sql2);
    }

    dbConn->initDb(sqls);
}

void frmDbUpload::on_btnDo_clicked()
{
    if (!dbConn->getOk()) {
        return;
    }

    //在软件中相应的更新语句(增加/删除/修改)插入到队列
    //这里就举例更新值和时间
    for (int i = 1; i < 10; i++) {
        int value1 = rand() % 100;
        int value2 = rand() % 5;
        QString sql = QString("update NodeData set NodeValue='%1',NodeStatus='%2',SaveTime='%3' where PositionID='AT-1000%4'")
                      .arg(value1).arg(value2).arg(DATETIME).arg(i);
        dbConn->append(sql);
    }
}

void frmDbUpload::on_btnStart_clicked()
{
    if (ui->btnStart->text() == "启动服务") {
        on_btnDo_clicked();
        timer->start();
        ui->btnStart->setText("停止服务");
    } else {
        timer->stop();
        ui->btnStart->setText("启动服务");
    }
}

void frmDbUpload::on_btnClear_clicked()
{
    DbHelper::appendMsg(ui->txtMain, maxCount, currentCount, 0, "", true);
}