scoket信息发送,如何把要发送的信息打包

wxliangforwxliang 2010-02-05 04:35:11

scoket信息发送,如何把要发送的信息打包

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Drillstudio 2010-02-08

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晕倒行李托运还需要打包呢

huazaimh 2010-02-07

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从程序中给你弄了一段打包的程序，不过刚开始学可能还是不太熟悉的，呵呵!
慢慢来就好了!
/////发送的数据包格式：OxC4(1字节) +　包长度(3字节)　+ 图片长度(3字节)　＋图片数据　＋BayEventInfo结构
long lPacketSize = 7 + lPicLen + sizeof(xBayEventInfo);

BYTE *pBuff = new BYTE[lPacketSize];
pBuff[0] = 0xC4;
memcpy(pBuff+1,&lPacketSize,3);
memcpy(pBuff+4,&lPicLen,3);
memcpy(pBuff+7,varPic.pbVal,lPicLen);

memcpy(EventInfo.addrhzcode,((BayEventInfo *)varInfo.byref)->addrhzcode,16);
memcpy(EventInfo.carLPColor,((BayEventInfo *)varInfo.byref)->carLPColor,8);

//memcpy(EventInfo.addspeed,((BayEventInfo *)varInfo.byref)->addspeed)
EventInfo.addspeed = ((BayEventInfo *)varInfo.byref)->addspeed;
EventInfo.blackval = ((BayEventInfo *)varInfo.byref)->blackval;
EventInfo.cameramode = ((BayEventInfo *)varInfo.byref)->cameramode;
EventInfo.carlen = ((BayEventInfo *)varInfo.byref)->carlen;
memcpy(EventInfo.carLPID,((BayEventInfo *)varInfo.byref)->carLPID,8);
EventInfo.chanel = ((BayEventInfo *)varInfo.byref)->chanel;
memcpy(EventInfo.channelhzcode,((BayEventInfo *)varInfo.byref)->channelhzcode,16);
EventInfo.DevIp = ((BayEventInfo *)varInfo.byref)->DevIp;
EventInfo.height = ((BayEventInfo *)varInfo.byref)->height;
EventInfo.hour = ((BayEventInfo *)varInfo.byref)->hour;
EventInfo.minute = ((BayEventInfo *)varInfo.byref)->minute;
EventInfo.month = ((BayEventInfo *)varInfo.byref)->month;
EventInfo.overspeed = ((BayEventInfo *)varInfo.byref)->overspeed;
EventInfo.redtime = ((BayEventInfo *)varInfo.byref)->redtime;
EventInfo.second = ((BayEventInfo *)varInfo.byref)->second;
EventInfo.weizhang = ((BayEventInfo *)varInfo.byref)->weizhang;
EventInfo.whitewbphi = ((BayEventInfo *)varInfo.byref)->whitewbphi;
EventInfo.width = ((BayEventInfo *)varInfo.byref)->width;
EventInfo.workmode = ((BayEventInfo *)varInfo.byref)->workmode;
EventInfo.yall = ((BayEventInfo *)varInfo.byref)->yall;
EventInfo.year = ((BayEventInfo *)varInfo.byref)->year;
EventInfo.day = ((BayEventInfo *)varInfo.byref)->day;
EventInfo.speed = ((BayEventInfo *)varInfo.byref)->speed;
/////////////
char pStrPlatterNo[16] = "粤B 22689";
memcpy(EventInfo.carLPID,pStrPlatterNo,16);
////////////

memcpy(pBuff+7+lPicLen,&EventInfo,sizeof(xBayEventInfo));

m_pRecvThread->PostThreadMessage(WM_PUT_PACKET,(WPARAM)pBuff,(LPARAM)lPacketSize);

ppc686 2010-02-07

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打包的弱点在于传输效率太低

rollrock1987 2010-02-06

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你买外卖怎么打包的？把菜放盒子内，把饭再放一盒子呢，然后给你一个塑料袋，你提走
代码也一样的

wb112200 2010-02-06

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所谓“打包”就是把你要发送的数据给包装一下，通常都是用一个结构体来实现的。
如下：仅供参考，可根据实际情况定义
#define HEAD_LEN 4
#define DATA_LEN 2048

struct SEND_DATA
{
char szDataHead[HEAD_LEN];// 数据头
char szDataInfo[DATA_LEN];// 数据信息
int iSendNum;// 发送编号
};