VS2010 socket聊天室 发送消息出现乱码，求帮忙看看怎么回事

[m0_37773084]

服务器的接受代码
void CCSocket::OnReceive(int nErrorCode)
{
	char buff1[sizeof(Header)];
	memset(buff1,0, sizeof(buff1));
	Receive(buff1,sizeof(buff1));
	this->AsyncSelect(FD_CLOSE|FD_READ|FD_WRITE);
	Header *header = (Header*)buff1;
	int length = header->len;
	char type = header->type;
	if(type == LOGIN_IO)
	{
		char buff[1000];
		memset(buff,0,sizeof(buff));
		Receive(buff1,length);
		this->AsyncSelect(FD_CLOSE|FD_READ|FD_WRITE);
		m_dlgServer->UpdateData();
		CEdit *p_Edit = (CEdit *)::AfxGetMainWnd()->GetDlgItem(IDC_EDIT_INFO);
		CString strTemp = CString(buff) + "进入聊天室\r\n";
		p_Edit->ReplaceSel(strTemp);
		m_strName = buff;

		Header head;
		head.type = SEND_MESSAGE;
		head.len = strTemp.GetLength();

		Header head_history;
		head_history.type = SEND_MESSAGE;
		m_dlgServer->m_history += m_strName + _T("，欢迎您加入！");
		

		head_history.len = m_dlgServer->m_history.GetLength();

		CCSocket *curr = NULL;
		POSITION pos = clist->GetHeadPosition();
		while(pos != NULL)
		{
			curr = (CCSocket *)clist->GetNext(pos);
			if(curr->m_strName == m_strName)
			{
				curr->Send((char *)&head_history,sizeof(Header));

				curr->Send(m_dlgServer->m_history,m_dlgServer->m_history.GetLength());
			}
			else
			{
				curr->Send((char *)&head,sizeof(Header));
				curr->Send(strTemp,strTemp.GetLength());
			}
		}
		m_dlgServer->UpdateUser(this);
	}
	if(type == SEND_MESSAGE)
	{
		char buff[1000];
		memset(buff,0,sizeof(buff));
		Receive(buff,sizeof(buff));
	    this->AsyncSelect(FD_CLOSE|FD_READ|FD_WRITE);
		CString nikeName = this->m_strName;
		CString strTemp = nikeName + _T("说：") + CString(buff) + "\r\n";
		CString str1 = nikeName + "  " + "\r\n" + "  " + CString(buff);

		CEdit *p_Edit = (CEdit *)::AfxGetMainWnd()->GetDlgItem(IDC_EDIT_INFO);
		p_Edit->ReplaceSel(strTemp);

		CCSocket *curr = NULL;
		POSITION pos = clist->GetHeadPosition();
		while(pos != NULL)
		{
			curr = (CCSocket *)clist->GetNext(pos);
			curr->Send((char *)header,sizeof(Header));
			curr->Send(str1,str1.GetLength());
		}
	}
	CSocket::OnReceive(nErrorCode);
}


客户端的接收代码
void CCSocket::OnReceive(int nErrorCode)
{
	char buff[sizeof(Header)];
	memset(buff,0,sizeof(buff));
	Receive(buff,sizeof(buff));
	this->AsyncSelect(FD_CLOSE|FD_READ|FD_WRITE);

	Header *header = (Header*)buff;
	int length = header->len;
	char type = header->type;

	if(type == SEND_MESSAGE)
	{
		chatDlg->GetMsgFromRoom();
	}
	if(type == LOGIN_IO)
	{
		chatDlg->UpdateUser();
	}
	CSocket::OnReceive(nErrorCode);
}

连接没问题，发送消息就出现乱码了

[zgl7903]

1 CHAR WCHAR 数据长度不一样，CString::GetLength() 返回的是字符个数，如果要字节长度 应该 * sizeof(TCHAR) 2 可能会有粘包问题

[m0_37773084]

引用 1 楼 zgl7903 的回复:

1 CHAR WCHAR 数据长度不一样，CString::GetLength() 返回的是字符个数，如果要字节长度 应该 * sizeof(TCHAR) 2 可能会有粘包问题

把char改成wchar吗

[赵4老师]

对电脑而言没有乱码，只有二进制字节；对人脑才有乱码。啊 GBK:0xB0 0xA1,Unicode-16 LE:0x4A 0x55,Unicode-16 BE:0x55 0x4A,UTF-8:0xE5 0x95 0x8A

void HexDump(char *buf,int len,int addr) {
    int i,j,k;
    char binstr[80];

    for (i=0;i<len;i++) {
        if (0==(i%16)) {
            sprintf(binstr,"%08x -",i+addr);
            sprintf(binstr,"%s %02x",binstr,(unsigned char)buf[i]);
        } else if (15==(i%16)) {
            sprintf(binstr,"%s %02x",binstr,(unsigned char)buf[i]);
            sprintf(binstr,"%s  ",binstr);
            for (j=i-15;j<=i;j++) {
                sprintf(binstr,"%s%c",binstr,('!'<buf[j]&&buf[j]<='~')?buf[j]:'.');
            }
            printf("%s\n",binstr);
        } else {
            sprintf(binstr,"%s %02x",binstr,(unsigned char)buf[i]);
        }
    }
    if (0!=(i%16)) {
        k=16-(i%16);
        for (j=0;j<k;j++) {
            sprintf(binstr,"%s   ",binstr);
        }
        sprintf(binstr,"%s  ",binstr);
        k=16-k;
        for (j=i-k;j<i;j++) {
            sprintf(binstr,"%s%c",binstr,('!'<buf[j]&&buf[j]<='~')?buf[j]:'.');
        }
        printf("%s\n",binstr);
    }
}

[m0_37773084]

引用 3 楼 oyljerry 的回复:

两边都用wchar_t来发送和接收。

我把所有的char都改成了wchar_t，还是乱码

[smwhotjay]

建议先从控制台开始写起。。方便随时调试输出 导致乱码的原因就多了，无法一一列举了

[oyljerry]

两边都用wchar_t来发送和接收。