准备：
系统： ubuntu12.04
工具： gcc，mysql，libmysqlclient-dev
测试代码（文件名：con_mysql.c):
#include<mysql/mysql.h>
#include<stdio.h>
main() {
MYSQL *conn;
MYSQL_RES *res;
MYSQL_ROW row;
char *server = "localhost";
char *user = "root";
char *password = "123456"; /* set me first */
char *database = "mysql";
char *query = "select Host,User,Password from user";
int t, r;
conn = mysql_init(NULL);
if(!mysql_real_connect(conn, server, user, password, database, 0, NULL, 0))
{
printf("Error connecting to database: %s\n", mysql_error(conn));
}
else
{
printf("Connected....\n");
}
t = mysql_query(conn, query);
if(t)
{
printf("Error making query: %s\n", mysql_error(conn));
}
else
{
printf("Query made...\n");
res = mysql_use_result(conn);
if(res)
{
for(r=0; r<=mysql_field_count(conn); r++)
{
row = mysql_fetch_row(res);
if(row<0) break;
for(t=0; t<mysql_num_fields(res); t++)
printf("%s", row[t]);
printf("\n");
}
}
mysql_free_result(res);
}
mysql_close(conn);
return 0;
}
编译：
gcc con_mysql.c -L /usr/lib/mysql/ -lmysqlclient -o con_mysql
执行：
./con_mysql
结果：
Connected.... Query made... localhostroot*6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9 ubunturoot 127.0.0.1root ::1root
时间： 2024-11-01 00:32:02