1. 确保安装了mysql相关驱动:
sudo apt-get install libmysqlclient16 libmysqlclient16-dev libmysqlclient-dev
2. 进入qt sdk进行编译安装(我的sdk安装目录为:/mnt/sdb1/QtSDK)
cd /mnt/sdb1/QtSDK/QtSources/4.8.0/src/plugins/sqldrivers/mysql qmake "INCLUDEPATH+=/usr/include /usr/include/mysql" "LIBS+=-L/usr/lib -lmysqlclient_r" mysql.pro make make install
3. 有可能make install的目标地址是4.7.4的目录,而我们的工程使用的是4.8.0的gcc,所以还需要手动复制驱动到对应目录
cp /mnt/sdb1/QtSDK/Desktop/Qt/474/gcc/plugins/sqldrivers/libqsqlmysql.so /mnt/sdb1/QtSDK/Desktop/Qt/4.8.0/gcc/plugins/sqldrivers/
4.qt mysql程序再次运行成功
QSqlDatabase db = QSqlDatabase::addDatabase("QMYSQL");
db.setHostName("localhost");
db.setDatabaseName("mydb");
db.setUserName("username");
db.setPassword("pwd");
bool ok = db.open();