MySQL提供了C++语言的操作接口,用这个接口可以针对自己的数据库写一个C++的客户端出来,安装的方法请参看官方文档。
这个文章已经把在Visual Studio 2008里如何编写MySQL Connector C++的应用程序进行了详细的说明,此方法是针对MySQL Connector C++的安装包来介绍的。而另一篇文章则介绍了如何从MySQL Connector C++的源码包编译。
这里介绍一下Visual Studio 2005下面,用安装二进制包的方法来使用MySQL Connector C++的方法:
1) 先安装MySQL
记得要把Developer Components – C Include Files / Lib Files选上。当然,你不安装MySQL而只装这个单独的包也行,不过我还是建议在本地装一个MySQL,否则怎么测试呢?远程测试太麻烦了~~
2) 下载与Visual Studio 2005相对应的MySQL Connector C++版本
3) 在Visual Studio 2005里创建一个Win32 Console工程
File->New Project->Visual C++->Win32->Win32 Console Application
注意:”Application Settings”里的”Additional options: Precompiled header”默认是会被选上的,而我们这里,基本上可以不用这个。
4) 正确地配置工程属性
不管是Debug还是Release,都是用下面的方法设置就可以了,主要是把相关的头文件include到工程,再指定相关的动态链接库所在路径。
(1) 打开”project”->”properties”对话框,选择”configuration properties”
把MySQL Connector/C++的安装目录添加到Additional Include Directory里:
Project->Properties
Configuration Properties -> open tree view
C/C++ -> General -> Additional Include Directory
(2) 让编译器能找到MySQL Connector/C++的libraries,只要把MySQL Connector/C++安装目录里的lib/opt目录添加到搜索路径即可:
Linker -> General -> Additional Library Directories
(3) 编译器在编译的时候,让linker去链接MySQL Connector/C++的mysqlcppconn.lib库
把mysqlcppconn.lib添加到这里:
Linker -> Input -> Additional Dependencies
5) 可以试着编译下面的这段最基本的代码:
/*
examples/standalone_example_docs1.cpp
*/
/* Standard C++ includes */
#include
#include
/*
Include directly the different
headers from cppconn/ and mysql_driver.h + mysql_util.h
(and mysql_connection.h). This will reduce your build time!
*/
#include "mysql_connection.h"
#include "cppconn/driver.h"
#include "cppconn/exception.h"
#include "cppconn/resultset.h"
#include "cppconn/statement.h"
using namespace std;
int main(void)
{
cout << endl;
cout << "Running 'SELECT 'Hello World!' AS _message'..." << endl;
try {
sql::Driver *driver;
sql::Connection *con;
sql::Statement *stmt;
sql::ResultSet *res;
/* Create a connection */
driver = get_driver_instance();
con = driver->connect("tcp://127.0.0.1:3306", "root", "password");
/* Connect to the MySQL test database */
con->setSchema("test");
stmt = con->createStatement();
res = stmt->executeQuery("SELECT 'Hello World!' AS _message");
while (res->next()) {
cout << "\t... MySQL replies: ";
/* Access column data by alias or column name */
cout << res->getString("_message") << endl;
cout << "\t... MySQL says it again: ";
/* Access column fata by numeric offset, 1 is the first column */
cout << res->getString(1) << endl;
}
delete res;
delete stmt;
delete con;
} catch (sql::SQLException &e) {
cout << "# ERR: SQLException in " << __FILE__;
cout << "(" << __FUNCTION__ << ") on line " << __LINE__ << endl;
cout << "# ERR: " << e.what();
cout << " (MySQL error code: " << e.getErrorCode();
cout << ", SQLState: " << e.getSQLState() << " )" << endl;
}
cout << endl;
return EXIT_SUCCESS;
}
如果一切顺序,应该就能连上本地的MySQL进行操作了。