sqlite加密-QtCipherSqlitePlugin 下

1、如果只是安装了插件有时是不够的

QCoreApplication::addLibraryPath

需要将插件目录添加到程序中

2、建立一个不加密的db文件

3、设置密码

QString DB_FILE_PATH="d:"; //防止驱动目录乱码
DB_FILE_PATH+="/testCipher.db";
qDebug() << "DB File Path is:" << DB_FILE_PATH;

QSqlDatabase dbconn = QSqlDatabase::addDatabase("SQLITECIPHER");
dbconn.setDatabaseName(DB_FILE_PATH); 
dbconn.setPassword("pass");
dbconn.setConnectOptions("QSQLITE_USE_CIPHER=sqlcipher; SQLCIPHER_LEGACY=1; SQLCIPHER_LEGACY_PAGE_SIZE=4096; QSQLITE_CREATE_KEY");

bool open = dbconn.open();
qDebug() << "open: " << open;
qDebug() << "isOpen(): " << dbconn.isOpen() << dbconn.isOpenError();
qDebug() << "create_key: " << dbconn.lastError();

if (!dbconn.isOpen())
{
        qDebug() << "Connection failed: " << dbconn.lastError().driverText();
        exit(CONNECTION_FAILED);
}

4、注意：不要多次设置密码