堆栈内存溢出
  繁体   English   中英

如何在 ubuntu 中获取 Qt PostgreSQL 插件？

[英]How get the Qt PostgreSQL plugin in ubuntu?

 原文  2021-01-04 15:42:54  9   1    c++/ postgresql/ qt

问题描述

再会。 我写了一个小程序来了解 Qt c ++ 和 SQL 是如何工作的。 她给我写信：

QSqlQuery::exec: database not open
QSqlError("", "Driver not loaded", "Driver not loaded")
("QSQLITE", "QODBC", "QODBC3", "QPSQL", "QPSQL7")

上网后发现需要一个SQL插件，找到这个指令https://doc.qt.io/qt-5的插件不工作（为什么是sqlout-html/box的插件） ? 没关系。）好的。 我 go 到文件夹 ~/Qt/5.15.2/Src/qtbase/src/plugins/sqldrivers 做“qmake -- PSQL_INCDIR=/usr/include/pgsql” 好

Running configuration tests...
Done running configuration tests.

Configure summary:

Qt Sql Drivers:
  DB2 (IBM) .............................. no
  InterBase .............................. no
  MySql .................................. no
  OCI (Oracle) ........................... no
  ODBC ................................... no
  PostgreSQL ............................. yes
  SQLite2 ................................ no
  SQLite ................................. yes
    Using system provided SQLite ......... no
  TDS (Sybase) ........................... no

Qt is now configured for building. Just run 'make'.
Once everything is built, you must run 'make install'.
Qt will be installed into '/usr'.

Prior to reconfiguration, make sure you remove any leftovers from
the previous build.

做“make sub-psql”我得到了

cd psql/ && ( test -e Makefile || /usr/lib/qt5/bin/qmake -o Makefile /home/anton/Qt/5.15.2/Src/qtbase/src/plugins/sqldrivers/psql/psql.pro PSQL_INCDIR=/usr/include/pgsql ) && make -f Makefile
make[1]: вход в каталог «/home/anton/Qt/5.15.2/Src/qtbase/src/plugins/sqldrivers/psql»
g++ -c -g -O2 -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -O2 -std=c++1z -fvisibility=hidden -fvisibility-inlines-hidden -fno-exceptions -Wall -W -Wvla -Wdate-time -Wshift-overflow=2 -Wduplicated-cond -Wno-stringop-overflow -Wno-deprecated-copy -Wno-redundant-move -Wno-format-overflow -Wno-init-list-lifetime -D_REENTRANT -fPIC -DQT_NO_JAVA_STYLE_ITERATORS -DQT_DEPRECATED_WARNINGS -DQT_NO_NARROWING_CONVERSIONS_IN_CONNECT -DQT_NO_CAST_TO_ASCII -DQT_NO_CAST_FROM_ASCII -DQT_NO_EXCEPTIONS -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -DQT_NO_DEBUG -DQT_PLUGIN -DQT_SQL_LIB -DQT_CORE_LIB -I. -isystem /usr/include/x86_64-linux-gnu/qt5/QtSql/5.12.8 -isystem /usr/include/x86_64-linux-gnu/qt5/QtSql/5.12.8/QtSql -isystem /usr/include/x86_64-linux-gnu/qt5/QtCore/5.12.8 -isystem /usr/include/x86_64-linux-gnu/qt5/QtCore/5.12.8/QtCore -isystem /usr/include/x86_64-linux-gnu/qt5 -isystem /usr/include/x86_64-linux-gnu/qt5/QtSql -isystem /usr/include/x86_64-linux-gnu/qt5/QtCore -I.moc -isystem /usr/include/postgresql -I/usr/lib/x86_64-linux-gnu/qt5/mkspecs/linux-g++ -o .obj/qsql_psql.o qsql_psql.cpp
qsql_psql.cpp: In constructor ‘QPSQLDriverPrivate::QPSQLDriverPrivate()’:
qsql_psql.cpp:152:68: error: no matching function for call to ‘QSqlDriverPrivate::QSqlDriverPrivate(QSqlDriver::DbmsType)’
  152 |     QPSQLDriverPrivate() : QSqlDriverPrivate(QSqlDriver::PostgreSQL) {}
      |                                                                    ^
In file included from qsql_psql.cpp:55:
/usr/include/x86_64-linux-gnu/qt5/QtSql/5.12.8/QtSql/private/qsqldriver_p.h:66:5: note: candidate: ‘QSqlDriverPrivate::QSqlDriverPrivate()’
   66 |     QSqlDriverPrivate()
      |     ^~~~~~~~~~~~~~~~~
/usr/include/x86_64-linux-gnu/qt5/QtSql/5.12.8/QtSql/private/qsqldriver_p.h:66:5: note:   candidate expects 0 arguments, 1 provided
/usr/include/x86_64-linux-gnu/qt5/QtSql/5.12.8/QtSql/private/qsqldriver_p.h:61:7: note: candidate: ‘QSqlDriverPrivate::QSqlDriverPrivate(const QSqlDriverPrivate&)’
   61 | class QSqlDriverPrivate : public QObjectPrivate
      |       ^~~~~~~~~~~~~~~~~
/usr/include/x86_64-linux-gnu/qt5/QtSql/5.12.8/QtSql/private/qsqldriver_p.h:61:7: note:   no known conversion for argument 1 from ‘QSqlDriver::DbmsType’ to ‘const QSqlDriverPrivate&’
/usr/include/x86_64-linux-gnu/qt5/QtSql/5.12.8/QtSql/private/qsqldriver_p.h:61:7: note: candidate: ‘QSqlDriverPrivate::QSqlDriverPrivate(QSqlDriverPrivate&&)’
/usr/include/x86_64-linux-gnu/qt5/QtSql/5.12.8/QtSql/private/qsqldriver_p.h:61:7: note:   no known conversion for argument 1 from ‘QSqlDriver::DbmsType’ to ‘QSqlDriverPrivate&&’
make[1]: *** [Makefile:384: .obj/qsql_psql.o] Error 1
make[1]: выход из каталога «/home/anton/Qt/5.15.2/Src/qtbase/src/plugins/sqldrivers/psql»
make: *** [Makefile:45: sub-psql] Error 2
What's happening? I just need to work with SQL, but that's all. If we open the sqldrivers.pro project using QtCreator, and try to compile, we get 3 errors:

/home/anton/Qt/5.15.2/Src/qtbase/src/plugins/sqldrivers/sqlite/qsql_sqlite.cpp:147: error: no matching function for call to ‘QSqlDriverPrivate::QSqlDriverPrivate(QSqlDriver::DbmsType)’
/home/anton/Qt/5.15.2/Src/qtbase/src/plugins/sqldrivers/sqlite/qsql_sqlite.cpp:147:73: error: no matching function for call to ‘QSqlDriverPrivate::QSqlDriverPrivate(QSqlDriver::DbmsType)’
  147 |     inline QSQLiteDriverPrivate() : QSqlDriverPrivate(QSqlDriver::SQLite) {}
      |                                                                         ^
/home/anton/Qt/5.15.2/Src/qtbase/src/plugins/sqldrivers/psql/qsql_psql.cpp:152: error: no matching function for call to ‘QSqlDriverPrivate::QSqlDriverPrivate(QSqlDriver::DbmsType)’
/home/anton/Qt/5.15.2/Src/qtbase/src/plugins/sqldrivers/psql/qsql_psql.cpp:152:68: error: no matching function for call to ‘QSqlDriverPrivate::QSqlDriverPrivate(QSqlDriver::DbmsType)’
  152 |     QPSQLDriverPrivate() : QSqlDriverPrivate(QSqlDriver::PostgreSQL) {}
      |                                                                    ^
:-1: Error: [Makefile:845: .obj/qsql_sqlite.o] Error 1

我如何获得插件？ 我正在使用社区 QtCreator、PostgreSQL 13.1、Ubuntu 20.04。

如果我输入命令“sudo apt install postgresql-client-13”，那么终端会显示“最新版本的 postgresql-client-13 package (13.1-1.pgdg20.04 + 1) 已经安装。postgresql-client- 13 被标记为手动安装。”

"export QT_DEBUG_PLUGINS = 1" 后的 output 很大，甚至比程序本身的代码还要大。 在这里，您建议在那里寻找什么？

我失去了希望，我还能做什么？

"export QT_DEBUG_PLUGINS = 1" https://cloud.mail.ru/public/3tnm/Zn2pjp1qr之后的日志

我在 'home/myname/Qt' 文件夹中安装了 Qt 但是正如我现在看到的日志，有一个独立的文件夹 /usr/include/x86_64-linux-gnu/qt5/QtSql/5.12.8/QtSql/private/ 我没有创造它。 现在我在 '~/Qt/5.15.2/Src/qtbase/src/plugins/sqldrivers' 文件夹中运行 make 并得到新的错误：

anton@home:~/Qt/5.15.2/Src/qtbase/src/plugins/sqldrivers$ make sub-psql
cd psql/ && ( test -e Makefile || /usr/lib/qt5/bin/qmake -o Makefile /home/anton/Qt/5.15.2/Src/qtbase/src/plugins/sqldrivers/psql/psql.pro PSQL_INCDIR=/usr/include/pgsql ) && make -f Makefile
make[1]: вход в каталог «/home/anton/Qt/5.15.2/Src/qtbase/src/plugins/sqldrivers/psql»
g++ -c -g -O2 -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -O2 -std=c++1z -fvisibility=hidden -fvisibility-inlines-hidden -fno-exceptions -Wall -W -Wvla -Wdate-time -Wshift-overflow=2 -Wduplicated-cond -Wno-stringop-overflow -Wno-deprecated-copy -Wno-redundant-move -Wno-format-overflow -Wno-init-list-lifetime -D_REENTRANT -fPIC -DQT_NO_JAVA_STYLE_ITERATORS -DQT_DEPRECATED_WARNINGS -DQT_NO_NARROWING_CONVERSIONS_IN_CONNECT -DQT_NO_CAST_TO_ASCII -DQT_NO_CAST_FROM_ASCII -DQT_NO_EXCEPTIONS -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -DQT_NO_DEBUG -DQT_PLUGIN -DQT_SQL_LIB -DQT_CORE_LIB -I. -isystem /usr/include/x86_64-linux-gnu/qt5/QtSql/5.12.8 -isystem /usr/include/x86_64-linux-gnu/qt5/QtSql/5.12.8/QtSql -isystem /usr/include/x86_64-linux-gnu/qt5/QtCore/5.12.8 -isystem /usr/include/x86_64-linux-gnu/qt5/QtCore/5.12.8/QtCore -isystem /usr/include/x86_64-linux-gnu/qt5 -isystem /usr/include/x86_64-linux-gnu/qt5/QtSql -isystem /usr/include/x86_64-linux-gnu/qt5/QtCore -I.moc -isystem /usr/include/postgresql -I/usr/lib/x86_64-linux-gnu/qt5/mkspecs/linux-g++ -o .obj/qsql_psql.o qsql_psql.cpp
qsql_psql.cpp: In constructor ‘QPSQLDriverPrivate::QPSQLDriverPrivate()’:
qsql_psql.cpp:152:68: error: no matching function for call to ‘QSqlDriverPrivate::QSqlDriverPrivate(QSqlDriver::DbmsType)’
  152 |     QPSQLDriverPrivate() : QSqlDriverPrivate(QSqlDriver::PostgreSQL) {}
      |                                                                    ^
In file included from qsql_psql.cpp:55:
/usr/include/x86_64-linux-gnu/qt5/QtSql/5.12.8/QtSql/private/qsqldriver_p.h:66:5: note: candidate: ‘QSqlDriverPrivate::QSqlDriverPrivate()’
   66 |     QSqlDriverPrivate()
      |     ^~~~~~~~~~~~~~~~~
/usr/include/x86_64-linux-gnu/qt5/QtSql/5.12.8/QtSql/private/qsqldriver_p.h:66:5: note:   candidate expects 0 arguments, 1 provided
/usr/include/x86_64-linux-gnu/qt5/QtSql/5.12.8/QtSql/private/qsqldriver_p.h:61:7: note: candidate: ‘QSqlDriverPrivate::QSqlDriverPrivate(const QSqlDriverPrivate&)’
   61 | class QSqlDriverPrivate : public QObjectPrivate
      |       ^~~~~~~~~~~~~~~~~
/usr/include/x86_64-linux-gnu/qt5/QtSql/5.12.8/QtSql/private/qsqldriver_p.h:61:7: note:   no known conversion for argument 1 from ‘QSqlDriver::DbmsType’ to ‘const QSqlDriverPrivate&’
/usr/include/x86_64-linux-gnu/qt5/QtSql/5.12.8/QtSql/private/qsqldriver_p.h:61:7: note: candidate: ‘QSqlDriverPrivate::QSqlDriverPrivate(QSqlDriverPrivate&&)’
/usr/include/x86_64-linux-gnu/qt5/QtSql/5.12.8/QtSql/private/qsqldriver_p.h:61:7: note:   no known conversion for argument 1 from ‘QSqlDriver::DbmsType’ to ‘QSqlDriverPrivate&&’
make[1]: *** [Makefile:384: .obj/qsql_psql.o] Ошибка 1
make[1]: выход из каталога «/home/anton/Qt/5.15.2/Src/qtbase/src/plugins/sqldrivers/psql»
make: *** [Makefile:45: sub-psql] Ошибка 2

另一个有趣的点，如果你在QTCreator中打开SQLPlagin项目，你可以看到有错误的源/home/anton/Qt/5.15.2/Src/qtbase/src/plugins/sqldrivers/sqldrivers.pro有3个错误

/home/anton/Qt/5.15.2/Src/qtbase/src/plugins/sqldrivers/psql/qsql_psql.cpp:152: error: no matching constructor for initialization of 'QSqlDriverPrivate' 

:-1: error: [Makefile:845: .obj/qsql_sqlite.o] Error 1

/home/anton/Qt/5.15.2/Src/qtbase/src/plugins/sqldrivers/psql/qsql_psql.cpp:152: error: no matching function for call to ‘QSqlDriverPrivate::QSqlDriverPrivate(QSqlDriver::DbmsType)’
/home/anton/Qt/5.15.2/Src/qtbase/src/plugins/sqldrivers/psql/qsql_psql.cpp:152:68: error: no matching function for call to ‘QSqlDriverPrivate::QSqlDriverPrivate(QSqlDriver::DbmsType)’
  152 |     QPSQLDriverPrivate() : QSqlDriverPrivate(QSqlDriver::PostgreSQL) {}

1 个解决方案

解决方案1
 1  2021-01-04 18:51:26

如果要使用Ubuntu中的PostgreSQL插件，只需安装客户端，Qt提供插件：

sudo apt-get install libpq-dev

另一方面，如果你想编译插件（通常是不必要的），那么你必须遵循以下步骤：

sudo apt-get install libpq-dev
git clone -b 5.15.2 https://code.qt.io/qt/qtbase.git
cd qtbase/src/plugins/sqldrivers
~/Qt/5.15.2/gcc_64/bin/qmake -- PSQL_INCDIR=/usr/include/pgsql
make sub-psql
make install

暂无
暂无

声明:本站的技术帖子网页，遵循CC BY-SA 4.0协议，如果您需要转载，请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.

相关问题 QT-PostgreSQL插件错误 如何在Ubuntu Qt中获得活动窗口标题？ Ubuntu + qt，如何更新？ Qt插件：无法从Qt插件获取枚举的元数据 如何指定Qt插件构造函数？ 如何在Ubuntu的Qt项目中包括ICU库？ 如何在Ubuntu中将Qt程序作为服务运行？ 如何在 Ubuntu 中使用 cmake 设置 qt4？ 如何在 Ubuntu 中将 Qt 源添加到 QtCreator？ 如何在Ubuntu 14.04中安装Qt 3.3.8
相关标签
 
粤ICP备18138465号  © 2020-2024 STACKOOM.COM