2013-03-12 130 views
0

我必須實現一個java服務器,該服務器從智能手機上運行的ios應用程序接收數據(字符串)。在Java服務器上接收ios套接字數據

不幸的是,我從來沒有在類似的情況下工作,所以我想知道如果有人可以給我一些指針從哪裏開始(或信息資源來看看)。

我這裏有用來創建套接字和發送數據的IOS代碼:

-(bool)createSocket { 
    sock = 0; 
    if ((sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP)) == -1) { 
     NSLog(@"Failed to create socket, error=%s", strerror(errno)); 
     return false;} 
    else { 
     return true; 
     NSLog(@"Socket created"); 
    } 
} 

-(bool) send:(NSString*) msg ipAddress:(NSString*) ip port:(int) p 
{ 
    struct sockaddr_in destination; 
    unsigned int echolen; 
    int broadcast = 1; 

    if (socketCreated==false) { 
     NSLog(@"Socket assente"); 
     return false; 
    } 
    else 
    { 
     /* Construct the server sockaddr_in structure */ 
     memset(&destination, 0, sizeof(destination)); 

     /* Clear struct */ 
     destination.sin_family = AF_INET; 

     /* Internet/IP */ 
     destination.sin_addr.s_addr = inet_addr([ip UTF8String]); 

     /* IP address */ 
     destination.sin_port = htons(p); 

     /* server port */ 
     setsockopt(sock, 
        IPPROTO_IP, 
        IP_MULTICAST_IF, 
        &destination, 
        sizeof(destination)); 
     char *cmsg = [msg UTF8String]; 
     echolen = strlen(cmsg); 

     // this call is what allows broadcast packets to be sent: 
     if (setsockopt(sock, 
         SOL_SOCKET, 
         SO_BROADCAST, 
         &broadcast, 
         sizeof broadcast) == -1) 
     { 
      perror("setsockopt (SO_BROADCAST)"); 
      exit(1); 
     } 
     if (sendto(sock, 
        cmsg, 
        echolen, 
        0, 
        (struct sockaddr *) &destination, 
        sizeof(destination)) != echolen) 
     { 
      printf("Mismatch in number of sent bytes\n"); 
      return false; 
     } 
     else 
     { 
      NSLog([NSString stringWithFormat:@"-> Tx: %@",msg]); 
      return true; 
     } 

    } 
} 

在此先感謝

回答

0

這可能是一個良好的開端:Java Network Programming FAQ。另外,請記住,當您通過網絡進行通信時,字符串只是字符串。這不像你會以某種方式獲得Java中的NSString;)

+0

謝謝你,我會立即調查它 – 2013-03-12 13:58:46

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