mysql c api 编程(一）

Posted 2020-10-04

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

int main() {
    MYSQL *conn;
    MYSQL_RES *res;
    MYSQL_ROW row;

    char *server = "localhost";
    char *user = "root";
    char *password = "[email protected]$RFVyl";
    char *database = "mymysql";

    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);

    return 0;
}

gcc `mysql_config --cflags` mysql-1.c `mysql_config --libs` -o test

[email protected]:~/projects/test$ ldd test
    linux-vdso.so.1 =>  (0x00007ffcc1111000)
    libmysqlclient.so.20 => /usr/lib/x86_64-linux-gnu/libmysqlclient.so.20 (0x00007f2e8a3a9000)
    libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f2e89fdf000)
    libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f2e89dc4000)
    libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f2e89bc0000)
    libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f2e899a3000)
    libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f2e89620000)
    libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f2e89317000)
    libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f2e89101000)
    /lib64/ld-linux-x86-64.so.2 (0x000055dcebb91000)


[email protected]:~/projects/test$ ./test
MySQL Tables in mysql database:
data
tx
wallet

本文出自 “用C++写诗” 博客，谢绝转载！