[提问]怎么想QSQLITE数据库中存放和读取图片？求代码解释？ [复制链接]

QFile file("/your/image/file.png");
file.open(QIODevice::ReadOnly);
QByteArray data = file.readAll();
file.close();
QSqlQuery q;
q.prepare("INSERT INTO t_table1(field1, filed2) VALUES(?, ?)");
q.addBindValue("/your/image/file.png");
q.addBindValue(data);
q.exec();

QSqlQuery q;
q.exec("SELECT field1, field2 FROM t_table1 WHERE ...");
q.next();
QByteArray data = q.value(1).toByteArray();

QFile file("/your/image/file.png");
file.open(QIODevice::WriteOnly);
file.write(data);
file.close();