Qt QPSQL驱动程序问题 [英] Qt QPSQL driver problem

问题描述

我试图连接postgresql与Qt SQL模块。我成功编译psql驱动程序（src \plugins\sqldrivers\psql）。但是当我尝试连接postgresql，我得到这个消息;

I'm trying to connect postgresql with Qt SQL module. I successfully compile psql driver(src\plugins\sqldrivers\psql). But when i try to connect postgresql, i get this message;

QSqlDatabase: QPSQL driver not loaded
QSqlDatabase: available drivers: QSQLITE QMYSQL3 QMYSQL QODBC3 QODBC QPSQL7 QPSQL

我使用PostgreSQL 8.3，Qt 4.7.1和Visual Studio 2008在Windows XP SP3（我也尝试这，但没有帮助）

推荐答案

是否编译了插件的版本和调试版本？依赖关系Walker的输出看起来像是使用调试版本。您应该在％QTDIR％\plugins\sqldrivers目录中有qsqlpsql4.dll和qsqlpsqld4.dll。你可以检查程序中使用的插件路径：QString QLibraryInfo :: location（QLibraryInfo :: PluginsPath）;

Did you compile the release and debug versions of the plugin? The output of the dependency walker looks like you work with the debug version. You should have qsqlpsql4.dll and qsqlpsqld4.dll in the %QTDIR%\plugins\sqldrivers directory. You can check the plugin path that is used in your program with: QString QLibraryInfo::location ( QLibraryInfo::PluginsPath );

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