81 lines
1.9 KiB
C++
81 lines
1.9 KiB
C++
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#include "mysqlutils.h"
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#include <hv/hlog.h>
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#include <sstream>
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#include <QtSql/QSqlDatabase>
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#include <QStringList>
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MysqlUtils MysqlUtils::m_instance;
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MysqlUtils::MysqlUtils()
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:m_pDbConnection(nullptr)
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{}
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MysqlUtils::~MysqlUtils()
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{
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CloseDatabase();
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}
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MysqlUtils* MysqlUtils::getInstance()
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{
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return &m_instance;
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}
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bool MysqlUtils::OpenDatabase(const std::string& server, int dbport, const std::string& dbuser, const std::string& dbpasswd, const std::string& database)
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{
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// 打开数据库
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try
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{
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if (m_pDbConnection!=nullptr)
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{
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if (m_pDbConnection->isValid())
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{
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hlogd("database already connected.");
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return true;
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}
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}
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using namespace sql;
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// 创建连接
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sql::Driver* driver;
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sql::ConnectOptionsMap connection_properties;
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connection_properties["hostName"] = server.c_str();
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connection_properties["userName"] = dbuser.c_str();
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connection_properties["password"] = dbpasswd.c_str();
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connection_properties["schema"] = database.c_str();
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connection_properties["port"] = dbport;
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connection_properties["OPT_RECONNECT"] = true;
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driver = get_driver_instance();
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m_pDbConnection = driver->connect(connection_properties);
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if (!m_pDbConnection)
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{
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hloge("Failed to connect to database.");
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return false;
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}
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hlogd("new database connection created successfully!");
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return true;
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}
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catch (sql::SQLException& e)
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{
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std::ostringstream ss;
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ss << "SQLException: " << e.what();
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ss<< " (MySQL error code: " << e.getErrorCode();
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ss << ", SQLState: " << e.getSQLState() << " )";
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hloge("Failed to connect to database: %s",ss.str().c_str());
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return false;
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}
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}
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void MysqlUtils::CloseDatabase()
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{
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if (m_pDbConnection)
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m_pDbConnection->close();
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}
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