编译QT的mysql驱动

1. 安装mysql的时候一定要安装"Libs & Include Files"的开发者模块

2. 设置环境变量

PATH
%SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;C:\Program Files\Microsoft SQL Server\90\Tools\binn\;C:\Qt\4.5.0\bin;C:\Program Files\Microsoft Visual Studio 8\VC\bin;C:\Program Files\Microsoft Visual Studio 8\Common7\IDE

分别是以下几个目录:

%SystemRoot%\system32;
%SystemRoot%;
%SystemRoot%\System32\Wbem;
C:\Program Files\Microsoft SQL Server\90\Tools\binn\;
C:\Qt\4.5.0\bin;
C:\Program Files\Microsoft Visual Studio 8\VC\bin;
C:\Program Files\Microsoft Visual Studio 8\Common7\IDE

INCLUDE
C:\Program Files\Microsoft Visual Studio 8\VC\include;C:\Program Files\Microsoft Visual Studio 8\VC\ATLMFC\INCLUDE;C:\Program Files\Microsoft Visual Studio 8\VC\INCLUDE;C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\include;C:\Program Files\Microsoft Visual Studio 8\SDK\v2.0\include;C:\Qt\4.5.0\include\QtCore;C:\Program Files\MySQL\MySQL Server 5.1\include

分别是以下几个目录

C:\Program Files\Microsoft Visual Studio 8\VC\include;
C:\Program Files\Microsoft Visual Studio 8\VC\ATLMFC\INCLUDE;
C:\Program Files\Microsoft Visual Studio 8\VC\INCLUDE;
C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\include;
C:\Program Files\Microsoft Visual Studio 8\SDK\v2.0\include;
C:\Qt\4.5.0\include;
C:\Program Files\MySQL\MySQL Server 5.1\include

LIBPATH
C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727;C:\Program Files\Microsoft Visual Studio 8\VC\ATLMFC\LIB
分别是以下几个目录

C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727;
C:\Program Files\Microsoft Visual Studio 8\VC\ATLMFC\LIB

LIB
C:\Program Files\Microsoft Visual Studio 8\VC\ATLMFC\LIB;C:\Program Files\Microsoft Visual Studio 8\VC\LIB;C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib;C:\Program Files\Microsoft Visual Studio 8\SDK\v2.0\lib;C:\Program Files\MySQL\MySQL Server 5.1\lib\debug;C:\Program Files\MySQL\MySQL Server 5.1\lib\opt

分别是以下几个目录：

C:\Program Files\Microsoft Visual Studio 8\VC\ATLMFC\LIB;
C:\Program Files\Microsoft Visual Studio 8\VC\LIB;
C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib;
C:\Program Files\Microsoft Visual Studio 8\SDK\v2.0\lib;
C:\Program Files\MySQL\MySQL Server 5.1\lib\debug;
C:\Program Files\MySQL\MySQL Server 5.1\lib\opt

 

3. 为防止中文乱码，修改mysql驱动的源代码 C:\Qt\4.5.0\src\sql\drivers\mysql\qsql_mysql.cpp
修改codec函数，修改后为：

static QTextCodec* codec(MYSQL* mysql)
{
  return QTextCodec::codecForName("GBK");
#if MYSQL_VERSION_ID >= 32321
  QTextCodec* heuristicCodec = QTextCodec::codecForName(mysql_character_set_name(mysql));
  if (heuristicCodec)
    return heuristicCodec;
#endif
  return QTextCodec::codecForLocale();
}

 

 

4. 执行

cd C:\Qt\4.5.0\src\plugins\sqldrivers\mysql
qmake -o Makefile mysql.pro
nmake

如果成功就会在C:\Qt\4.5.0\plugins\sqldrivers目录下产生一系列文件：

qsqlmysql4.dll
qsqlmysql4.exp
qsqlmysql4.lib
qsqlmysqld4.dll
qsqlmysqld4.exp
qsqlmysqld4.ilk
qsqlmysqld4.lib
qsqlmysqld4.pdb