Ubuntu下用C语言访问MySQL数据库
在Ubuntu下费了好长时间终于让C操作MySQL成功了,在此把方法记下来,留着以后用。先安装MySQL 代码: sudo apt-get install mysql
在Ubuntu下费了好长时间终于让C操作MySQL成功了,在此把方法记下来,留着以后用。先安装MySQL
代码:
sudo apt-get install mysql-server mysql-client
再装开发包
代码:
sudo apt-get install libmysqlclient15-dev
可以用以下代码测试一下
代码:
/* Simple C program that connects to MySQL Database server*/
#include
#include
main() {
MYSQL *conn;
MYSQL_RES *res;
MYSQL_ROW row;
char *server = "localhost";
char *user = "root";
char *password = ""; /* 此处改成你的密码 */
char *database = "mysql";
conn = mysql_init(NULL);
/* Connect to database */
if (!mysql_real_connect(conn, server,
user, password, database, 0, NULL, 0)) {
fprintf(stderr, "%s\n", mysql_error(conn));
exit(1);
}
/* send SQL query */
if (mysql_query(conn, "show tables")) {
fprintf(stderr, "%s\n", mysql_error(conn));
exit(1);
}
res = mysql_use_result(conn);
/* output table name */
printf("MySQL Tables in mysql database:\n");
while ((row = mysql_fetch_row(res)) != NULL)
printf("%s \n", row[0]);
/* close connection */
mysql_free_result(res);
mysql_close(conn);
}
编译:
方法一:gcc test.c -o test -I/user/include/mysql 试了一下,提示找不到mysql.h。
我试了一下,提示找不到mysql.h。
分析:
/user/include/mysql:全是.h文件,应该应编译阶段
/user/lib/mysql:是静态库和动态库,,应该与上面的.h文件对应,用于连接阶段。
方法二:gcc test.c -o test -L/user/lib/mysql -lmysqlclient 成功!
方法三:gcc test.c -o test $(mysql_config --cflags) $(mysql_config --libs)
或者:gcc test.c -o test $(mysql_config --cflags --libs) 成功!

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