Visual Studio配置MySql数据库

MySQL Connector/C++ is available as a static or dynamic library to use with your application. This section describes how to link the library to your application.

MySQL Connector/C++能做为项目的静态或动态库，这章节就是描述如何链接该库到你的项目中。

Note

To avoid potential crashes, the build configuration of MySQL Connector/C++ should match the build configuration of the application using it. For example, do not use the release build of MySQL Connector/C++ with a debug build of the client application.

Static Library

The MySQL Connector/C++ static library file is mysqlcppconn-static.lib.
You link this library statically with your application. Also link against the files libmysql.dll and libmysql.lib.
At runtime, the application will require access to libmysql.dll.

Dynamic Library

The MySQL Connector/C++ dynamic library file is mysqlcppconn.dll.
To build your client application, link it with the file mysqlcppconn.lib.
At runtime, the application will require access to the files mysqlcppconn.dll andlibmysql.dll.

Building a MySQL Connector/C++
Application with Microsoft Visual Studio

The initial steps for building an application to use either the static or dynamic library are the same. Some additional steps vary, depend on whether you are building your application to use the static or dynamic library.

1. Select File, New, Project from
   the main menu.

   Figure 5.1 Creating a New Project

   

2. In the wizard, select Visual C++, Win32.
   From Visual Studio Installed Templates, select
   the application typeWin32 Console Application.
   Enter a name for the application, then click OK, to move to the Win32
   Application Wizard.

   Figure 5.2 The New Project Dialog Box

   

3. In the Win32 Application Wizard, click Application
   Settings and ensure the defaults are selected. The radio button Console
   application and the check box Precompiled
   headers are selected. Click Finish to close the wizard.

   Figure 5.3 The Win32 Application Wizard

   

4. From the drop down list box on the toolbar, change from the default Debug build
   to the Release build.

   Figure 5.4 Selecting the Release Build

   

5. From the main menu select Project, Properties.
   This can also be accessed using the hot key ALT + F7.

   Figure 5.5 Selecting Project Properties from the Main Menu

   

6. Under Configuration Properties, open the tree
   view.
7. Select C++, General in
   the tree view.

   Figure 5.6 Setting Properties

   

8. Ensure that Visual Studio can find the MySQL include directory. This directory includes header files that can optionally be installed when installing MySQL Server.

   Figure 5.7 MySQL Include Directory

   

9. In the Additional Include Directories text
   field, add the MySQL include/ directory.

   Figure 5.8 Select Directory Dialog

   

10. Also set the location of additional libraries that Visual Studio needs to build the application. These are located in the MySQL lib/opt directory,
    a subdirectory of the MySQL Server installation directory.

    Figure 5.9 Typical Contents of MySQL lib/opt Directory

    

11. In the tree view, open Linker, General, Additional
    Library Directories.

    Figure 5.10 Additional Library Directories

    

12. Add the lib/opt directory into the Additional
    Library Directories text field. This enables the library filelibmysql.lib to
    be found.

    Figure 5.11 Additional Library Directories Dialog

    

Static Build

The remaining steps depend on whether you are building an application to use the MySQL Connector/C++ static or dynamic library. If you are building your application to use the dynamic library, see Dynamic
Build. If you are building your application to use the static library, carry out the following steps:

1. Open Linker, Input, Additional
   Dependencies.

   Figure 5.12 Additional Dependencies

   

2. Enter mysqlcppconn-static.lib and libmysql.lib.

   Figure 5.13 Adding Additional Dependencies

   

3. By default CPPCONN_PUBLIC_FUNC is defined
   to declare functions to be compatible with an application that calls a DLL. If you are building an application to call the static library, ensure that function prototypes are compatible with this. In this case, define CPPCONN_PUBLIC_FUNC to
   be an empty string, so that functions are declared with the correct prototype.

   In the Project, Properties tree
   view, under C++, Preprocessor,
   enter CPPCONN_PUBLIC_FUNC= into thePreprocessor
   Definitions text field.

   Figure 5.14 Setting the CPPCONN_PUBLIC_FUNC Define

   

   Note

   Make sure you enter CPPCONN_PUBLIC_FUNC= and
   not CPPCONN_PUBLIC_FUNC, so that it is
   defined as an empty string.

Dynamic build

If you are building an application to use the MySQL Connector/C++ dynamically linked library, carry out these steps:

1. Under Linker, Input,
   add mysqlcppconn.lib into the Additional
   Dependencies text field.
2. mysqlcppconn.dll must be in the same directory as the application
   executable, or somewhere on the system‘s path, so that the application can access the MySQL Connector/C++ Dynamic Linked Library at runtime.

   Copy mysqlcppconn.dll to the same directory as the application.
   Alternatively, extend the PATH environment
   variable using SET PATH=%PATH%;C:\path\to\cpp.
   Alternatively, you can copy mysqlcppconn.dll to the Windows
   installation Directory, typically c:\windows.