×ðÁú¿­Ê±

ÉèÖÃLinuxϵͳÒÔÖ§³ÖUDPÍøÂç±à³Ì

ÉèÖÃlinuxϵͳÒÔÖ§³ÖudpÍøÂç±à³Ì

×÷Ϊһ¸öÆÕ±éʹÓõIJÙ×÷ϵͳ £¬Linux ÌṩÁËÇ¿Ê¢µÄÍøÂç±à³ÌÄÜÁ¦ ¡£±¾ÎĽ«¼òÒªÏÈÈÝÔõÑùÉèÖà Linux ϵͳÒÔÖ§³Ö UDP£¨User Datagram Protocol £¬Óû§Êý¾Ý±¨Ð­Ò飩ÍøÂç±à³Ì £¬²¢ÌṩһЩ´úÂëʾÀý ¡£

Ê×ÏÈ £¬ÎÒÃÇÐèҪȷ±£ÏµÍ³ÒѾ­×¼È·×°ÖÃÁË Linux ²Ù×÷ϵͳ ¡£ÏêϸװÖð취¿É²Î¿¼ Linux ×°Öý̳Ì ¡£½ÓÏÂÀ´ £¬ÎÒÃÇÐèÒª¶Ôϵͳ¾ÙÐÐһЩÉèÖà ¡£

¼ì²éϵͳÄں˰汾

UDP ÊÇÔÚ´«Êä²ã¾ÙÐÐÊý¾Ý´«ÊäµÄÍøÂçЭÒé £¬ÒÔÊÇÎÒÃÇÐèҪȷ±£ÏµÍ³ÄÚºËÖ§³Ö UDP ¡£ÔÚÖÕ¶ËÖÐÖ´ÐÐÒÔÏÂÏÂÁî £¬Éó²éÄ¿½ñϵͳÄں˰汾£º

uname -r

µÇ¼ºó¸´ÖÆ

È·±£Äں˰汾ÊÇ×îеÄÎÈ¹Ì°æ £¬ÈôÊDz»ÊÇ £¬¿ÉÒÔ˼Á¿Éý¼¶ÄÚºË ¡£ÏêϸÄÚºËÉý¼¶°ì·¨Çë²Î¿¼Ïà¹ØÎĵµ ¡£

È·ÈÏÍøÂçÉèÖÃ

ÔÚ¾ÙÐÐ UDP ÍøÂç±à³Ì֮ǰ £¬ÎÒÃÇÐèҪȷ±£ÍøÂçÉèÖÃ׼ȷ ¡ £¿ÉÒÔͨ¹ýÒÔÏÂÏÂÁî¼ì²éÍøÂçÉèÖãº

ifconfig

µÇ¼ºó¸´ÖÆ

È·±£ÍøÂç½Ó¿ÚÒѾ­×¼È·ÉèÖò¢·ÖÅÉÁË IP µØµã ¡£

¼ì²é UDP ¶Ë¿Ú

UDP ÍøÂç±à³ÌÐèҪʹÓà UDP ¶Ë¿Ú¾ÙÐÐÊý¾Ý´«Êä ¡ £¿ÉÒÔͨ¹ýÒÔÏÂÏÂÁîÉó²éÄ¿½ñϵͳÉÏ·­¿ªµÄ UDP ¶Ë¿Ú£º

netstat -lnup

µÇ¼ºó¸´ÖÆ

È·±£ÏµÍ³ÉÏûÓÐÕ¼ÓÃÎÒÃÇÐèҪʹÓÃµÄ UDP ¶Ë¿Ú ¡£ÈôÊÇÓÐÆäËûÓ¦ÓóÌÐòÔÚʹÓÃ¸Ã¶Ë¿Ú £¬¿ÉÒÔʵÑéÌæ»»ÆäËû¿ÕÏеĶ˿Ú ¡£

½ÓÏÂÀ´ £¬ÎÒÃǽ«ÌṩһЩ»ù±¾µÄ UDP ÍøÂç±à³ÌʾÀý £¬ÒÔ×ÊÖú¸÷È˸üºÃµØÃ÷È· UDP ÍøÂç±à³ÌµÄÊÂÇéÔ­Àí ¡£

ʾÀýÒ»£ºUDP ¿Í»§¶ËʾÀý´úÂë

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>

#define MAX_BUFFER_SIZE 1024
#define SERVER_IP "127.0.0.1"
#define SERVER_PORT 8080

int main() {
    // ½¨Éè UDP socket
    int sock = socket(AF_INET, SOCK_DGRAM, 0);
    if (sock < 0) {
        perror("Failed to create socket");
        exit(EXIT_FAILURE);
    }

    // ¹¹½¨Ð§ÀÍÆ÷µØµã½á¹¹
    struct sockaddr_in server_addr;
    memset(&server_addr, 0, sizeof(server_addr));
    server_addr.sin_family = AF_INET;
    server_addr.sin_port = htons(SERVER_PORT);
    server_addr.sin_addr.s_addr = inet_addr(SERVER_IP);

    // ·¢ËÍÊý¾Ý
    char buffer[MAX_BUFFER_SIZE] = "Hello, UDP Server!";
    sendto(sock, buffer, strlen(buffer), 0, (struct sockaddr*)&server_addr, sizeof(server_addr));

    // ¹Ø±Õ socket
    close(sock);

    return 0;
}

µÇ¼ºó¸´ÖÆ

ʾÀý¶þ£ºUDP ЧÀÍÆ÷ʾÀý´úÂë

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>

#define MAX_BUFFER_SIZE 1024
#define SERVER_PORT 8080

int main() {
    // ½¨Éè UDP socket
    int sock = socket(AF_INET, SOCK_DGRAM, 0);
    if (sock < 0) {
        perror("Failed to create socket");
        exit(EXIT_FAILURE);
    }

    // °ó¶¨Ð§ÀÍÆ÷µØµã
    struct sockaddr_in server_addr, client_addr;
    memset(&server_addr, 0, sizeof(server_addr));
    server_addr.sin_family = AF_INET;
    server_addr.sin_port = htons(SERVER_PORT);
    server_addr.sin_addr.s_addr = htonl(INADDR_ANY);
    if (bind(sock, (struct sockaddr*)&server_addr, sizeof(server_addr)) < 0) {
        perror("Failed to bind address");
        exit(EXIT_FAILURE);
    }

    // ÎüÊÕÊý¾Ý
    char buffer[MAX_BUFFER_SIZE];
    int addr_len = sizeof(client_addr);
    int recv_len = recvfrom(sock, buffer, MAX_BUFFER_SIZE, 0, (struct sockaddr*)&client_addr, &addr_len);
    if (recv_len < 0) {
        perror("Failed to receive data");
        exit(EXIT_FAILURE);
    }

    printf("Received data from client: %s
", buffer);

    // ¹Ø±Õ socket
    close(sock);

    return 0;
}

µÇ¼ºó¸´ÖÆ

²Î¿¼ÒÔÉÏʾÀý´úÂë £¬ÎÒÃÇ¿ÉÒÔ¾ÙÐÐ UDP ÍøÂç±à³Ì ¡£ÔÚʾÀýÒ»ÖÐ £¬ÎÒÃǽ¨ÉèÁËÒ»¸ö UDP ¿Í»§¶Ë £¬²¢ÏòÖ¸¶¨µÄЧÀÍÆ÷µØµã·¢ËÍÊý¾Ý ¡£Ê¾Àý¶þÔòչʾÁËÒ»¸ö¼òÆ UDP ЧÀÍÆ÷ £¬¸ÃЧÀÍÆ÷¿ÉÒÔÎüÊÕµ½¿Í»§¶Ë·¢Ë͵ÄÊý¾Ý ¡£

ͨ¹ýÒÔÉϵÄÉèÖúÍʾÀý´úÂë £¬ÎÒÃÇ¿ÉÒÔ×îÏÈÔÚ Linux ϵͳÉϾÙÐÐ UDP ÍøÂç±à³Ì ¡£Í¬Ê± £¬ÎÒÃÇÒ²¿ÉÒÔƾ֤ÏÖʵÐèÇó¾ÙÐÐÔ½·¢ÖØ´óµÄÍøÂçÓ¦Óÿª·¢ ¡£Ï£Íû±¾ÎÄÄÜ×ÊÖúµ½¸÷ÈË £¬¸üºÃµØÃ÷È·ºÍÓ¦Óà UDP ÍøÂç±à³ÌÊÖÒÕ ¡£

ÒÔÉϾÍÊÇÉèÖÃLinuxϵͳÒÔÖ§³ÖUDPÍøÂç±à³ÌµÄÏêϸÄÚÈÝ £¬¸ü¶àÇë¹Ø×¢±¾ÍøÄÚÆäËüÏà¹ØÎÄÕ£¡

ÃâÔð˵Ã÷£ºÒÔÉÏչʾÄÚÈÝȪԴÓÚÏàÖúýÌå¡¢ÆóÒµ»ú¹¹¡¢ÍøÓÑÌṩ»òÍøÂçÍøÂçÕûÀí £¬°æȨÕùÒéÓë±¾Õ¾ÎÞ¹Ø £¬ÎÄÕÂÉæ¼°¿´·¨Óë¿´·¨²»´ú±í×ðÁú¿­Ê±ÂËÓÍ»úÍø¹Ù·½Ì¬¶È £¬Çë¶ÁÕß½ö×ö²Î¿¼ ¡£±¾ÎĽӴýתÔØ £¬×ªÔØÇë˵Ã÷À´ÓÉ ¡£ÈôÄúÒÔΪ±¾ÎÄÇÖÕ¼ÁËÄúµÄ°æȨÐÅÏ¢ £¬»òÄú·¢Ã÷¸ÃÄÚÈÝÓÐÈκÎÉæ¼°ÓÐÎ¥¹«µÂ¡¢Ã°·¸Ö´·¨µÈÎ¥·¨ÐÅÏ¢ £¬ÇëÄúÁ¬Ã¦ÁªÏµ×ðÁú¿­Ê±ÊµÊ±ÐÞÕý»òɾ³ý ¡£

Ïà¹ØÐÂÎÅ

ÁªÏµ×ðÁú¿­Ê±

18523999891

¿É΢ÐÅÔÚÏß×Éѯ

ÊÂÇéʱ¼ä£ºÖÜÒ»ÖÁÖÜÎå £¬9:30-18:30 £¬½ÚãåÈÕÐÝÏ¢

QR code
¡¾ÍøÕ¾µØͼ¡¿¡¾sitemap¡¿