尊龙凯时人生就是搏

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sudo apt-get update
sudo apt-get install build-essential
sudo apt-get install git
sudo apt-get install cmake
sudo apt-get install libssl-dev
sudo apt-get install libboost-all-dev

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¹¤ÒµÎïÁªÍø¿ª·¢ÐèҪװ±¸Ö®¼äÄܹ»¾ÙÐÐÍøÂçͨѶ£¬ÎÒÃÇÐèÒªÉèÖÃÍøÂçÉèÖÃÒÔÈ·±£×°±¸Äܹ»Ï໥ͨѶ¡£ÎÒÃÇ¿ÉÒÔʹÓÃÍøÂçÉèÖù¤¾ßÈçifconfig»òÕßNetworkManager¾ÙÐÐÍøÂçÉèÖá£

ÒÔÉèÖþ²Ì¬IPµØµãΪÀý£¬ÎÒÃÇ¿ÉÒԱ༭ÍøÂçÉèÖÃÎļþ£¬ºÃ±È/etc/network/interfaces£¬Ìí¼ÓÒÔÏÂÉèÖãº

auto eth0
iface eth0 inet static
address 192.168.0.100
netmask 255.255.255.0
gateway 192.168.0.1

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ÒÔ×°ÖÃMQTTЭÒéջΪÀý£¬ÎÒÃÇ¿ÉÒÔʹÓÃÒÔÏÂÏÂÁî¾ÙÐÐ×°Öãº

git clone https://github.com/eclipse/mosquitto.git
cd mosquitto
make
sudo make install

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¹¤ÒµÎïÁªÍø¿ª·¢Öо­³£ÐèҪʹÓÃÊý¾Ý¿âÀ´´æ´¢ºÍ´¦ÀíÊý¾Ý£¬ÎÒÃÇ¿ÉÒÔÑ¡Ôñ×°ÖÃSQLite¡¢MySQLµÈÊý¾Ý¿â¡£ÒÔ×°ÖÃSQLiteΪÀý£¬ÎÒÃÇ¿ÉÒÔʹÓÃÒÔÏÂÏÂÁî¾ÙÐÐ×°Öãº

sudo apt-get install sqlite3

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#include <stdio.h>
#include <stdlib.h>
#include <sqlite3.h>
#include <mosquitto.h>

void message_callback(struct mosquitto *mosq, void *userdata, const struct mosquitto_message *message) {
    sqlite3 *db;
    char *errmsg;
    int rc;

    rc = sqlite3_open("data.db", &db);
    if (rc != SQLITE_OK) {
        printf("Can't open database: %s
", sqlite3_errmsg(db));
        return;
    }

    char *sql = "INSERT INTO messages (topic, payload) VALUES (?, ?)";
    rc = sqlite3_exec(db, sql, NULL, NULL, &errmsg);
    if (rc != SQLITE_OK) {
        printf("SQL error: %s
", errmsg);
        sqlite3_free(errmsg);
    }

    sqlite3_close(db);
}

int main() {
    struct mosquitto *mosq = NULL;

    mosquitto_lib_init();
    mosq = mosquitto_new(NULL, true, NULL);
    mosquitto_connect(mosq, "localhost", 1883, 60);

    mosquitto_message_callback_set(mosq, message_callback);

    mosquitto_subscribe(mosq, NULL, "topic", 0);

    mosquitto_loop_start(mosq);

    while (1) {
        // ¼á³Ö³ÌÐòÔËÐÐ
    }

    mosquitto_loop_stop(mosq, true);
    mosquitto_destroy(mosq);
    mosquitto_lib_cleanup();

    return 0;
}

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ÁªÏµ尊龙凯时人生就是搏

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