//发送文件
private void button_file_Click(object sender, EventArgs e)
{
if (openFileDialog1.ShowDialog() == DialogResult.OK)
{
string file_name = openFileDialog1.SafeFileName; //文件名
string file_path = openFileDialog1.FileName; //文件全路径
long file_length = new FileInfo(file_path).Length; //以字节为单位
if (file_length > 100 * 1000 * 1000) //超过100M
{
MessageBox.Show("文件大小不能超过100M", "警告", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
else if (file_length <= 0)
{
MessageBox.Show("文件为空！", "警告", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
Sock_connected.Send_message_NumString(3, file_name);
add_msg2list("系统消息", "正在发送文件:" + file_path, Color.Red);
byte[] buffer_Chat_send = new byte[1024 * 1024 * 110];//110M缓存
using (FileStream fs = new FileStream(file_path, FileMode.Open, FileAccess.Read))
{
int readLength = 0;
//bool firstRead = true;
//long sentFileLength = 0;
readLength = fs.Read(buffer_Chat_send, 0, buffer_Chat_send.Length);
Sock_connected.Send_message_NumByte(2, buffer_Chat_send, readLength);
/*while ((readLength = fs.Read(buffer_Chat_send, 0, buffer_Chat_send.Length)) > 0 && sentFileLength < file_length)
* {
* sentFileLength += readLength;
*
* //第一次发送的字节流上加前缀
* if (firstRead)
* {
* //第一个字节标记2，代表为文件
* Sock_connected.Send_message_NumByte(2, buffer_Chat_send, readLength);
* firstRead = false;
* }
* Sock_connected.sock.Send(buffer_Chat_send, 0, readLength, SocketFlags.None);
* }*/
fs.Close();
}
}
}
private void button_sendFile_Click(object sender, EventArgs e)
{
OpenFileDialog openf_d = new OpenFileDialog();
if (openf_d.ShowDialog() == DialogResult.OK)
{
string file_name = openf_d.SafeFileName; //文件名
string file_path = openf_d.FileName; //文件全路径
long file_length = new FileInfo(file_path).Length; //以字节为单位
if (file_length > 30 * 1000 * 1000) //超过100M
{
MessageBox.Show("文件大小不能超过30M", "警告", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
else if (file_length <= 0)
{
MessageBox.Show("文件为空！", "警告", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
myFileInfo file_info = new myFileInfo(file_length, file_name);
if (!host_flag)
{
if (fileInfo_list.Exists(x => x == file_info))
{
MessageBox.Show("文件已存在。", "警告", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
host_connectNC.Send_message_NumString(3, file_length.ToString() + '_' + file_name);
add_msg2list("系统消息", "正在上传文件:" + file_path, Color.Red);
byte[] buffer_file_send = new byte[1024 * 1024 * 35];//35M缓存
using (FileStream fs = new FileStream(file_path, FileMode.Open, FileAccess.Read))
{
int readLength = fs.Read(buffer_file_send, 0, buffer_file_send.Length);
host_connectNC.Send_message_NumByte(2, buffer_file_send, readLength);
fs.Close();
}
}
else
{
if (host_file_list.Keys.Contains(file_info))
{
MessageBox.Show("文件已存在。", "警告", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
byte[] buffer_file_send = new byte[1024 * 1024 * 35];//35M缓存
add_msg2list("系统消息", "正在上传文件:" + file_path, Color.Red);
using (FileStream fs = new FileStream(file_path, FileMode.Open, FileAccess.Read))
{
int readLength = 0;
readLength = fs.Read(buffer_file_send, 0, buffer_file_send.Length);
byte[] file_bytes = new byte[readLength];
Buffer.BlockCopy(buffer_file_send, 0, file_bytes, 0, readLength);
host_file_list.Add(file_info, file_bytes);
fs.Close();
}
send_fileInfo2all_users(file_info, my_name);
add_file2list(file_info, my_name, Color.Black);
}
}
}
