/// <summary>
/// 接受发送给特定人的文件
/// </summary>
/// <param name="msgHandler"></param>
private void ReceiveFileForIndividual(FileHandler msgHandler)
{
byte[] fileStream = Encoding.UTF8.GetBytes(msgHandler.message);
//保存文件对话框对象
SaveFileDialog sfd = new SaveFileDialog();
sfd.DefaultExt = msgHandler.fileType;
if (msgHandler.fileType.Equals("txt"))
sfd.Filter = "文本文件(*.txt)|*.txt";
else if (msgHandler.fileType.Equals("doc"))
sfd.Filter = "word文档(*.doc)|*.doc";
else if (msgHandler.fileType.Equals("docx"))
sfd.Filter = "word文档(*.docx)|*.docx";
else if (msgHandler.fileType.Equals("cpp"))
sfd.Filter = "c++文件(*.cpp)|*.cpp";
else if (msgHandler.fileType.Equals("c"))
sfd.Filter = "c文件(*.c)|*.c";
else if (msgHandler.fileType.Equals("h"))
sfd.Filter = "头文件(*.h)|*.h";
else if (msgHandler.fileType.Equals("ppt"))
sfd.Filter = "PowerPoint文件(*.ppt)|*.ppt";
else if (msgHandler.fileType.Equals("pptx"))
sfd.Filter = "PowerPoint文件(*.pptx)|*.pptx";
else if (msgHandler.fileType.Equals("pdf"))
sfd.Filter = "PDF文档(*.pdf)|*.pdf";
else if (msgHandler.fileType.Equals("xls"))
sfd.Filter = "excel文档(*.xls)|*.xls";
if (sfd.Filter == null || sfd.Filter.Equals(""))
sfd.Filter += "All FIles(*.*)|*.*";
else
sfd.Filter += "| All FIles(*.*)|*.*";
List<Paragraph> userParagraphList = dictParagraph[msgHandler.from];
Paragraph newParagraph = new Paragraph();
Run run = new Run()
{
Text = System.DateTime.Now.ToString() + " 收到来自" + msgHandler.fromName + "(" + msgHandler.from + ")" + " 的文件\r\n",
Foreground = new SolidColorBrush(Colors.SteelBlue)
};
newParagraph.Inlines.Add(run);
userParagraphList.Add(newParagraph);
onlineFriendType sendTo = (onlineFriendType)onlineFriendlistListBox.SelectedItem;
sfd.FileName = msgHandler.fileName + "." + msgHandler.fileType;
if (sfd.ShowDialog(this) == true)
{
//获取文件将要保存的路径
string fileSavePath = sfd.FileName;
//创建文件流，让文件流根据路径创建一个文件
using (FileStream fs = new FileStream(fileSavePath, FileMode.Create))
{
Run mrun = new Run()
{
Text = "文件保存到" + fileSavePath + "\r\n",
Foreground = new SolidColorBrush(Colors.SteelBlue)
};
newParagraph.Inlines.Add(mrun);
fs.Write(fileStream, 1, fileStream.Length - 1);
}
}
if (sendTo.nameAndId.Equals("所有人") == false && sendTo.userData.userId.Equals(msgHandler.from))
{
chatRichTextBox.Document.Blocks.Add(newParagraph);
}
else
{
int index;
if (FindItemByUserId(msgHandler.from, out index))
{
onlineFriendType user = (onlineFriendType)onlineFriendlistListBox.Items[index];
user.increaseNum();
}
}
}
/// <summary>
/// 发送文件
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void sendFile_Click(object sender, RoutedEventArgs e)
{
onlineFriendType sendTo = (onlineFriendType)onlineFriendlistListBox.SelectedItem;
//用文件流打开用户选择的文件
try
{
using (FileStream fs = new FileStream(fileTextBox.Text, FileMode.Open))
{
//定义一个4M的数组（缓冲区）
byte[] arrFile = new byte[1024 * 1024 * 2];
//用于发送真实数据的数组
byte[] arrFileSend = new byte[1];
//将文件数据读到数组arrFile中，并获取文件的真实长度
int length = fs.Read(arrFile, 0, arrFile.Length);
string fileStream = Encoding.UTF8.GetString(arrFile, 0, length);
int indexPoint = fileTextBox.Text.LastIndexOf('.');
int indexLine = fileTextBox.Text.LastIndexOf('\\');
string fileName = fileTextBox.Text.Substring(indexLine + 1, indexPoint - indexLine - 1);
string fileType = fileTextBox.Text.Substring(indexPoint + 1, fileTextBox.Text.Length - indexPoint - 1);
if (sendTo.nameAndId.Equals("所有人"))
{
FileHandler msgHandler = new FileHandler(userData.userId, userData.userName, fileName, fileType, "", fileStream);
string sendMsg = JsonConvert.SerializeObject(msgHandler);
byte[] arrTmp = Encoding.UTF8.GetBytes(sendMsg);
arrFileSend = new byte[arrTmp.Length + 1];
arrFileSend[0] = FILE_TO_ALL;
Buffer.BlockCopy(arrTmp, 0, arrFileSend, 1, arrTmp.Length);
}
else
{
FileHandler msgHandler = new FileHandler(userData.userId, userData.userName, fileName, fileType, sendTo.userData.userId, fileStream);
string sendMsg = JsonConvert.SerializeObject(msgHandler);
byte[] arrTmp = Encoding.UTF8.GetBytes(sendMsg);
arrFileSend = new byte[arrTmp.Length + 1];
arrFileSend[0] = FILE_TO_INDIVIDUAL;
Buffer.BlockCopy(arrTmp, 0, arrFileSend, 1, arrTmp.Length);
}
List<Paragraph> userParagraphList;
if (sendTo.nameAndId.Equals("所有人"))
userParagraphList = dictParagraph["AllUsers"];
else
userParagraphList = dictParagraph[sendTo.userData.userId];
Paragraph newParagraph = new Paragraph();
Run run = new Run()
{
Text = System.DateTime.Now.ToString() + " 发送文件" + fileName + "." + fileType + "\r\n",
Foreground = new SolidColorBrush(Colors.SteelBlue)
};
newParagraph.Inlines.Add(run);
userParagraphList.Add(newParagraph);
chatRichTextBox.Document.Blocks.Add(newParagraph);
try
{
socketClient.Send(arrFileSend);
fileTextBox.Text = "";
}
catch (SocketException se)
{
Console.WriteLine("【错误】发送消息异常：" + se.Message);
return;
}
catch (Exception ex)
{
Console.WriteLine("【错误】发送消息异常：" + ex.Message);
return;
}
}
}
catch
{
MessageBox.Show("请选择正确的文件路径！");
}
}