CentOS下的C连接MySQL数据库

完成上面的操作之后，/etc/init.d/mysqld restart重启mysql完成上面的操作之后密码就设定好了。2、安装支持库yum install mysql-devel-i386 开始安装3、编写程序mysql.c

> #include <stdlib.h>
> #include <stdio.h>
> #include <mysql/mysql.h>

MYSQL *conn_ptr;int main(void){conn_ptr = mysql_init(NULL);if (!conn_ptr){fprintf(stderr,”mysql_init failed!\n”);return (-1);}conn_ptr = mysql_real_connect(conn_ptr,”127.0.0.1”,”root”,”“,”mysql”,3306,0,NULL);if (conn_ptr){printf (“connection succeed!\n”);}else{printf (“connection failed!\n”);return (-2);}mysql_close(conn_ptr);printf (“connection close!\n”);return 0;}4、编译程序gcc -o mydbcon -I /usr/include/mysql/ -L /usr/lib/mysql -lmysqlclient mysql.c5、执行程序./mydbconconnection succeed!connection close!