//获取文件
private void GetFile(WebServiceMessage.Messages msg)
{
DialogResult dr = MessageBox.Show("好友" + msg.Sender + "给你发来一个文件（" + msg.FileFullName +
",Size:" + msg.Details.Length + "Byte.)。\r\n是否接受该文件？",
"接收文件", MessageBoxButtons.YesNo);
//如果用户不接受该文件，放弃本次文件传递
if (dr != DialogResult.Yes)
{
return;
}
//设置文件名称
string filename = this.GetNewFilename(msg.FileFullName);
byte[] fileContent = ConvertStringAndBytes.ConvertStringToBytes(msg.Details);
//创建一个文件流对象，并初始化
FileStream fs = new FileStream(filename, FileMode.OpenOrCreate);
//向文件流中写入内容
fs.Write(fileContent, 0, fileContent.Length);
//关闭流
fs.Close();
}
private void SendFile(string filename, string target)
{
//创建一个文件流对象
FileStream fs = new FileStream(filename, FileMode.Open);
//创建一个二进制组
byte[] bs = new byte[fs.Length];
//从文件流中读出内容
fs.Read(bs, 0, bs.Length);
//关闭流
fs.Close();
//初始化Messages对象
WebServiceMessage.Messages msg = new WebServiceMessage.Messages();
msg.Classify = 2;
msg.Details = ConvertStringAndBytes.ConvertBytesToString(bs);
msg.Receiver = target;
msg.FileFullName = filename.Substring(filename.LastIndexOf("\\"));
//执行发送操作
WsMessage.SendFile(msg);
}