c++ 连接mysql数据库

首先安装mysql，点完全安装，才能在在安装目录include找到相应的头文件，注意，是完全安装。

我装的是5.1版本，需要的头文件有

把需要的文件添加进去，然后再把 libmysql.lib放到项目目录里，文件在mysql安装目录 lib 下面.

#include "stdafx.h"

#include <iostream>

#include <winsock2.h>

#include "mysql.h"

//#pragma comment(lib, "ws2_32.lib")

#pragma comment(lib,"libmysql.lib")

using namespace std;

int main(int argc, char* argv[])

{



	mysql_library_init(NULL,0,0);	

	MYSQL mysql;

	mysql_init(&mysql);



	if(0==mysql_options(&mysql,MYSQL_SET_CHARSET_NAME,"utf8"))//设置字符集

	{

		cout << "设置字符集成功\n\n" <<endl;

	}



	if(!mysql_real_connect(&mysql,"localhost","root","kwgkwg","test",0,NULL,CLIENT_MULTI_STATEMENTS))//连接数据库

	{

		cout << "not connect mysql" << endl;

	}else

	{

		cout << "welcome to mysql\n\n\n";

	}



	mysql_query(&mysql,"select * from demo1");			//执行SQL语句

	MYSQL_RES *result=mysql_store_result(&mysql);		//获取资源

	int rowcount=mysql_num_rows(result);				//获取记录数

	unsigned int fieldcount=mysql_num_fields(result);	//获取字段数



	//cout << rowcount << endl;



	MYSQL_FIELD *field=NULL;							//字段

	MYSQL_ROW row=NULL;							//记录

	while(row=mysql_fetch_row(result))

	{

		for(unsigned int i=0;i<fieldcount;i++)

		{

			field=mysql_fetch_field_direct(result,i);

			cout<<field->name<<":"<<row[i] <<"\n";

		}

	}	





	mysql_free_result(result);

	mysql_close(&mysql);

	mysql_server_end();

	mysql_library_end();

	

	return 0;

}