c++连接mysql数据库

1.使用VS创建项目

2.右键项目选择属性，进入C/C++ => 常规 => 附加包含目录，添加D:\mysql-5.7.19-win64\include（根据自己安装的MySQL版本及地址填写）

3.在属性页，进入链接器 => 常规 => 附加库目录，添加D:\mysql-5.7.19-winx64\lib（根据自己情况填写）

4.在项目的.\x64\Debug\中添加libmysql.dll（从计算机的资源管理器中添加），该dll文件在D:\mysql-5.7.19-winx64\lib目录下

5.代码测试

#include "stdio.h"
#include "mysql.h"

int main()
{
    MYSQL * con; //= mysql_init((MYSQL*) 0); 
    MYSQL_RES *res;
    MYSQL_ROW row;
    char tmp[400];
    //database configuartion
    char dbuser[30] = "root";　　//mysql账号名
    char dbpasswd[30] = "123456"; //mysql账号密码
    char dbip[30] = "localhost";
    char dbname[50] = "student";//数据库名
    char tablename[50] = "bl";　//数据表名
    char *query = NULL;

    int x;
    int y;
    int rt;//return value  
    unsigned int t;

    int count = 0;

    con = mysql_init((MYSQL*)0);

    if (con != NULL && mysql_real_connect(con, dbip, dbuser, dbpasswd, dbname, 3306, NULL, 0)) {
        if (!mysql_select_db(con, dbname)) {
            printf("Select successfully the database!\n");
            con->reconnect = 1;
            query = "set names \‘GBK\‘";
            rt = mysql_real_query(con, query, strlen(query));
            if (rt) {
                printf("Error making query: %s !!!\n", mysql_error(con));
            }
            else {
                printf("query %s succeed!\n", query);
            }
        }
    }
    else {
        MessageBoxA(NULL, "Unable to connect the database,check your configuration!", "", NULL);
    }

    //sprintf(tmp, "insert into %s values(%s,%d,%d)", tablename, "null", x, y); //注意如何向具有自增字段的数据库中插入记录
    sprintf(tmp, "insert into bl values(null,‘x‘,‘x‘,‘x‘,‘x‘)");


    rt = mysql_real_query(con, tmp, strlen(tmp));
    if (rt)
    {
        printf("Error making query: %s !!!\n", mysql_error(con));
    }
    else
    {
        printf("%s executed!!!\n", tmp);
    }

    sprintf(tmp, "select * from %s", tablename);
    rt = mysql_real_query(con, tmp, strlen(tmp));
    if (rt)
    {
        printf("Error making query: %s !!!\n", mysql_error(con));
    }
    else
    {
        printf("%s executed!!!\n", tmp);
    }
    res = mysql_store_result(con);//将结果保存在res结构体中

    while (row = mysql_fetch_row(res)) {
        for (t = 0; t<mysql_num_fields(res); t++) {
            printf("%s  ", row[t]);
        }
        printf(".............\n");
        count++;
    }

    printf("number of rows %d\n", count);
    printf("mysql_free_result...\n");
    mysql_free_result(res);
    mysql_close(con);
    system("pause");
    return 0;
}