目标C:使用Socket发布/获取请求

Question

我知道如何使用此处和此处解释的任何HTTPClient发送post/get请求.但是现在我有一个连接到远程服务器的流套接字,我想使用这个套接字发送一个post请求.

我之前从未这样做过,坦率地说从未考虑过POST/GET通过套接字的概念.但我的谷歌搜索引导我到这里,帖子是通过Java套接字完成的..

我正在使用Apple提供的CFSocket库.无论如何,在目标C中使用套接字进行POST/GET吗？

Answer 1

好吧,我已经能够使用普通的CFSocket进行GET/POST.

-(bool) sendHTTPHeader{
    NSMutableString* requestString  =   [[NSMutableString alloc] init];
    NSString *pathString            =   [NSString stringWithFormat:@"/remote_function.jsp?argument1=%@&argument2=%@",arg1,arg2 ];
    [requestString appendFormat:@"GET %@ HTTP/1.x\r\n",pathString];
    [requestString appendFormat:@"HOST:%@",your_host_here];
    [requestString appendFormat:@"User-Agent:any\r\n"];
    [requestString appendFormat:@"Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7\r\n\r\n"];
    /*If there are more parameters requested by server, put them here..*/

    const char* sendString          =   [requestString UTF8String];

    CFDataRef  data                 =   CFDataCreate(NULL, (const UInt8*)sendString, strlen(sendString));
    CFSocketError err               =   CFSocketSendData(clientSocket, NULL, data, 0);
    if (err != kCFSocketSuccess) {
        NSLog(@"Error in sending data to the server");
        CFRelease(data);
        return FALSE;
    }
    [requestString release];
    CFRelease(data);
    return TRUE;
}

现在在您的套接字回调函数中,您可以读取http响应.希望这可以帮助某人..

void socketCallback(CFSocketRef socket,CFSocketCallBackType type,CFDataRef address,const void *data,void *info){
    if (type == kCFSocketDataCallBack) {
        NSData *nsData              =   (NSData *)data;
        if ([nsData length] == 0) {
            NSLog(@"Connection dropped by remote socket");
            return;
        }
        //Control reaches here when there is a chunk of data to read
        CFDataRef df                =   (CFDataRef) data;
        int len                     =   CFDataGetLength(df);
        CFRange range               =   CFRangeMake(0,len);
        UInt8 buffer[len+1];

        if(len <= 0) {
            NSLog(@"No data read");
            return;        
        }
        memset((void*)buffer,0,sizeof(buffer));
        CFDataGetBytes(df, range, buffer);
        NSString *byteString            =   [[NSString alloc] initWithBytes:buffer length:len encoding:NSUTF8StringEncoding];
        NSLog(@"byte string is : %@",byteString);
        [byteString release];
    }
}