private void ServerRecMsg(object socketClientPara)
{
Socket socketServer = socketClientPara as Socket;
long fileLength = 0;
CmdContainer cmd = new CmdContainer();
int ReceiveBufferSize = 1024 * 1024;
while (true)
{
int firstReceived = 0;
byte[] buffer = new byte[ReceiveBufferSize];
try
{
if (socketServer != null)
{
firstReceived = socketServer.Receive(buffer);
}
if (firstReceived > 0)
{
if (buffer[0] == '$')
{
string strRecMsg = Encoding.UTF8.GetString(buffer, 1, firstReceived - 1);
if (!cmd.GetCmd(strRecMsg))
{
continue;
}
while (cmd.CmdQueue.Count != 0)
{
string strCmd = cmd.CmdQueue.Dequeue();
txtMsg.AppendText("对方发送了:" + strCmd + "\n");
}
}
if (buffer[0] == 2)
{
string fileNameWithLength = Encoding.UTF8.GetString(buffer, 1, firstReceived - 1);
strSRecMsg = fileNameWithLength.Split('-').First();
fileLength = Convert.ToInt64(fileNameWithLength.Split('-').Last());
}
if (buffer[0] == 1)
{
string fileNameSuffix = strSRecMsg.Substring(strSRecMsg.LastIndexOf('.'));
SaveFileDialog sfDialog = new SaveFileDialog()
{
Filter = "(*" + fileNameSuffix + ")|*" + fileNameSuffix + "",
FileName = strSRecMsg
};
if (sfDialog.ShowDialog(this) == DialogResult.OK)
{
string savePath = sfDialog.FileName;
int received = 0;
long receivedTotalFilelength = 0;
bool firstWrite = true;
using (FileStream fs = new FileStream(savePath, FileMode.Create, FileAccess.Write))
{
while (receivedTotalFilelength < fileLength)
{
if (firstWrite)
{
fs.Write(buffer, 1, firstReceived - 1);
fs.Flush();
receivedTotalFilelength += firstReceived - 1;
firstWrite = false;
continue;
}
received = socketServer.Receive(buffer);
fs.Write(buffer, 0, received);
fs.Flush();
receivedTotalFilelength += received;
}
fs.Close();
}
string fName = savePath.Substring(savePath.LastIndexOf("\\") + 1);
string fPath = savePath.Substring(0, savePath.LastIndexOf("\\"));
txtMsg.AppendText("对方:" + GetCurrentTime() + "\r\n您成功接收了文件" + fName + "\r\n保存路径为:" + fPath + "\r\n");
}
}
}
}
catch (Exception ex)
{
txtMsg.AppendText("系统异常消息:" + ex.Message);
break;
}
}
}
/// <summary>
/// 接收客户端发来的信息
/// </summary>
private void ServerRecMsg(object socketClientPara)
{
Socket socketServer = socketClientPara as Socket;
long fileLength = 0;
CmdContainer cmd = new CmdContainer();
int ReceiveBufferSize = 1024 * 1024;
while (true)
{
int firstReceived = 0;
byte[] buffer = new byte[ReceiveBufferSize];
try
{
//获取接收的数据,并存入内存缓冲区 返回一个字节数组的长度
if (socketServer != null)
{
firstReceived = socketServer.Receive(buffer);
}
if (firstReceived > 0) //接受到的长度大于0 说明有信息或文件传来
{
if (buffer[0] == '$') //0为文字信息
{
string strRecMsg = Encoding.UTF8.GetString(buffer, 1, firstReceived - 1);
if (!cmd.GetCmd(strRecMsg))
{
continue;
}
while (cmd.CmdQueue.Count != 0)
{
string strCmd = cmd.CmdQueue.Dequeue();
txtMsg.AppendText("对方发送了:" + strCmd + "\n");
}
}
if (buffer[0] == 2)//2为文件名字和长度
{
string fileNameWithLength = Encoding.UTF8.GetString(buffer, 1, firstReceived - 1);
strSRecMsg = fileNameWithLength.Split('-').First(); //文件名
fileLength = Convert.ToInt64(fileNameWithLength.Split('-').Last()); //文件长度
}
if (buffer[0] == 1) //1为文件
{
string fileNameSuffix = strSRecMsg.Substring(strSRecMsg.LastIndexOf('.')); //文件后缀
SaveFileDialog sfDialog = new SaveFileDialog()
{
Filter = "(*" + fileNameSuffix + ")|*" + fileNameSuffix + "", //文件类型
FileName = strSRecMsg
};
//如果点击了对话框中的保存文件按钮
if (sfDialog.ShowDialog(this) == DialogResult.OK)
{
string savePath = sfDialog.FileName; //获取文件的全路径
//保存文件
int received = 0;
long receivedTotalFilelength = 0;
bool firstWrite = true;
using (FileStream fs = new FileStream(savePath, FileMode.Create, FileAccess.Write))
{
while (receivedTotalFilelength < fileLength) //之后收到的文件字节数组
{
if (firstWrite)
{
fs.Write(buffer, 1, firstReceived - 1); //第一次收到的文件字节数组 需要移除标识符1 后写入文件
fs.Flush();
receivedTotalFilelength += firstReceived - 1;
firstWrite = false;
continue;
}
received = socketServer.Receive(buffer); //之后每次收到的文件字节数组 可以直接写入文件
fs.Write(buffer, 0, received);
fs.Flush();
receivedTotalFilelength += received;
}
fs.Close();
}
string fName = savePath.Substring(savePath.LastIndexOf("\\") + 1); //文件名 不带路径
string fPath = savePath.Substring(0, savePath.LastIndexOf("\\")); //文件路径 不带文件名
txtMsg.AppendText("对方:" + GetCurrentTime() + "\r\n您成功接收了文件" + fName + "\r\n保存路径为:" + fPath + "\r\n");
}
}
}
}
catch (Exception ex)
{
txtMsg.AppendText("系统异常消息:" + ex.Message);
break;
}
}
}