/// <summary>
/// 关闭连接
/// </summary>
public static void CloseTcpSocket()
{
dict.Clear();
listbOnline.Items.Clear();
threadWatch.Abort();
socketWatch.Close();
ShwMsgForView.ShwMsgforView(lstbxMsgView, "服务器关闭监听");
}
private void btnBeginListen_Click(object sender, EventArgs e)
{
try
{
Files.BeginListening(txtIp.Text, txtPort.Text, lstbxMsgView, listbOnline);
btnBeginListen.Enabled = false;
//btnCancel.Enabled = true;
}
catch (Exception ex)
{
ShwMsgForView.ShwMsgforView(lstbxMsgView, "监听服务器出现了错误:" + ex.Message);
}
}
/// <summary>
/// 连接客户端
/// </summary>
private static void WatchConnecting()
{
while (true)//持续不断的监听客户端的请求
{
//开始监听 客户端连接请求，注意：Accept方法，会阻断当前的线程
Socket connection = socketWatch.Accept();
if (connection.Connected)
{
//向列表控件中添加一个客户端的Ip和端口，作为发送时客户的唯一标识
listbOnline.Items.Add(connection.RemoteEndPoint.ToString());
//将与客户端通信的套接字对象connection添加到键值对集合中，并以客户端Ip做为健
dict.Add(connection.RemoteEndPoint.ToString(), connection);
//创建通信线程
ParameterizedThreadStart pts = new ParameterizedThreadStart(RecMsg);
Thread thradRecMsg = new Thread(pts);
thradRecMsg.IsBackground = true;
thradRecMsg.Start(connection);
ShwMsgForView.ShwMsgforView(lstbxMsgView, "客户端连接成功" + connection.RemoteEndPoint.ToString());
}
}
}
/// <summary>
/// 开始监听
/// </summary>
/// <param name="localIp"></param>
/// <param name="localPort"></param>
public static void BeginListening(string localIp, string localPort, ListBox listbox, ListBox listboxOnline)
{
//基本参数初始化
lstbxMsgView = listbox;
listbOnline = listboxOnline;
//创建服务端负责监听的套接字，参数（使用IPV4协议，使用流式连接，使用Tcp协议传输数据）
socketWatch = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
//获取Ip地址对象
IPAddress address = IPAddress.Parse(localIp);
//创建包含Ip和port的网络节点对象
IPEndPoint endpoint = new IPEndPoint(address, int.Parse(localPort));
//将负责监听的套接字绑定到唯一的Ip和端口上
socketWatch.Bind(endpoint);
//设置监听队列的长度
socketWatch.Listen(10);
//创建负责监听的线程，并传入监听方法
threadWatch = new Thread(WatchConnecting);
threadWatch.IsBackground = true; //设置为后台线程
threadWatch.Start(); //开始线程
//ShowMgs("服务器启动监听成功");
ShwMsgForView.ShwMsgforView(lstbxMsgView, "服务器启动监听成功");
}
/// <summary>
/// 接收消息
/// </summary>
/// <param name="socketClientPara"></param>
private static void RecMsg(object socketClientPara)
{
Socket socketClient = socketClientPara as Socket;
byte[] buffer = new byte[1024 * 100];
while (true)
{
string uname = "zhangsan";//获取云盘路径，待设置
try
{
socketClient.Receive(buffer); // 接收数据，并返回数据的长度；
if (buffer[0] == 1) //客户端上传文件请求
{
socketClient.Receive(buffer); // 接收数据，并返回数据的长度；
long receive = 0L, length = BitConverter.ToInt64(buffer, 0);
string fileName = Encoding.Default.GetString(buffer, 0, socketClient.Receive(buffer));
using (FileStream writer = new FileStream(Path.Combine("D://云管家//云服务端//receivedfile//" + uname + "//", fileName), FileMode.Create, FileAccess.Write, FileShare.None))
{
int received;
while (receive < length)
{
received = socketClient.Receive(buffer);
writer.Write(buffer, 0, received);
writer.Flush();
receive += (long)received;
}
}
ShwMsgForView.ShwMsgforView(lstbxMsgView, "文件保存成功:" + fileName);
}
else if (buffer[0] == 2) //下载请求
{
string filename = Encoding.Default.GetString(buffer, 0, socketClient.Receive(buffer));
string name = filename;
filename = @"D:\云管家\云服务端\receivedfile\" + uname + @"\" + filename;
using (FileStream reader = new FileStream(filename, FileMode.Open, FileAccess.Read, FileShare.None))
{
byte[] arrSendMsg = new byte[1];
arrSendMsg[0] = 1; // 用来表示发送的是文件
socketClient.Send(arrSendMsg); // 发送消息；
long send = 0L, length = reader.Length;
System.Threading.Thread.Sleep(100);
socketClient.Send(BitConverter.GetBytes(length));
string fileName = Path.GetFileName(filename);
socketClient.Send(Encoding.Default.GetBytes(fileName));
byte[] buffer1 = new byte[1024];
int read, sent;
XmlHelper xml = new XmlHelper();
XmlNodeList nodelist = xml.GetXmlNodeListByXpath(@"D:\云管家\config\xuchuan.xml", "/root/file");
foreach (XmlNode xn in nodelist)
{
//遍历子节点
string name1 = (xn.SelectSingleNode("filename")).InnerText;
// string isxuchuan = (xn.SelectSingleNode("isxuchuan")).InnerText;
if (name1.Equals(name))
{
reader.Position = long.Parse((xn.SelectSingleNode("posission")).InnerText.ToString());
// p = writer.Position;
}
}
//断点发送 在这里判断设置reader.Position即可
while ((read = reader.Read(buffer1, 0, 1024)) != 0)
{
sent = 0;
while ((sent += socketClient.Send(buffer1, sent, read, SocketFlags.None)) < read)
{
send += (long)sent;
//Console.WriteLine("Sent " + send + "/" + length + ".");//进度
}
}
// Console.WriteLine("Send finish.");
//txtMsg.Text = "Send finish";
ShwMsgForView.ShwMsgforView(lstbxMsgView, "文件发送成功:" + fileName);
}
}
else if (buffer[0] == 3)//登陆请求
{
string info = Encoding.Default.GetString(buffer, 0, socketClient.Receive(buffer));
string[] s = info.Split(new char[] { ' ' });
byte[] arrSendMsg = new byte[1];
arrSendMsg[0] = 4; // 验证失败
XmlHelper xml = new XmlHelper();
XmlNodeList nodelist = xml.GetXmlNodeListByXpath(@"D:\云管家\云服务端\userinfo.xml", "/root/user");
foreach (XmlNode xn in nodelist)
{
string name = (xn.SelectSingleNode("username")).InnerText;
string password = (xn.SelectSingleNode("password")).InnerText;
if (s[0].Equals(name) && s[1].Equals(password))
{
arrSendMsg[0] = 3;//验证成功
uname = name;
}
socketClient.Send(arrSendMsg); // 发送消息；
}
}
else if (buffer[0] == 6)//删除请求
{
string fname = Encoding.Default.GetString(buffer, 0, socketClient.Receive(buffer));
string fpath = @"D:\云管家\云服务端\receivedfile\" + uname + @"\" + fname;
File.Delete(fpath);
ShwMsgForView.ShwMsgforView(lstbxMsgView, "文件删除成功:" + fname);
}
else if (buffer[0] == 7)//新建文件夹请求
{
string fname = Encoding.Default.GetString(buffer, 0, socketClient.Receive(buffer));
string fpath = @"D:\云管家\云服务端\receivedfile\" + uname + @"\" + fname;
Directory.CreateDirectory(fpath);
}
else if (buffer[0] == 8)//登陆请求
{
string info = Encoding.Default.GetString(buffer, 0, socketClient.Receive(buffer));
string[] s = info.Split(new char[] { ' ' });
byte[] arrSendMsg = new byte[1];
arrSendMsg[0] = 9; // 验证失败
System.Collections.Hashtable ht = new System.Collections.Hashtable();
ht["username"] = s[0];
ht["password"] = s[1];
XmlHelper xml = new XmlHelper();
if (xml.InsertNode(@"D:\云管家\云服务端\userinfo.xml", "user", false, "/root", ht, ht))
{
arrSendMsg[0] = 8; //验证成功
}
socketClient.Send(arrSendMsg); // 发送消息；
}
}
catch (SocketException se)
{
//ShowMsg("异常：" + se.Message);
ShwMsgForView.ShwMsgforView(lstbxMsgView, "异常：" + se.Message);
// 从 通信套接字 集合中删除被中断连接的通信套接字；
dict.Remove(socketClient.RemoteEndPoint.ToString());
// 从通信线程集合中删除被中断连接的通信线程对象；
dictThread.Remove(socketClient.RemoteEndPoint.ToString());
// 从列表中移除被中断的连接IP
listbOnline.Items.Remove(socketClient.RemoteEndPoint.ToString());
break;
}
catch (Exception e)
{
ShwMsgForView.ShwMsgforView(lstbxMsgView, "异常：" + e.Message);
// 从 通信套接字 集合中删除被中断连接的通信套接字；
dict.Remove(socketClient.RemoteEndPoint.ToString());
// 从通信线程集合中删除被中断连接的通信线程对象；
dictThread.Remove(socketClient.RemoteEndPoint.ToString());
// 从列表中移除被中断的连接IP
listbOnline.Items.Remove(socketClient.RemoteEndPoint.ToString());
break;
}
}
}
