我正在为我的学校的C＃客户端服务器应用程序工作，我有一个小问题。当我在我的应用程序中使用admin登录时，一切正常，信息通过套接字，但是当我需要通过套接字获取ClientsList时，在管理员表单上说不响应，并且没有其他任何事情发生。
任何人都可以告诉我为什么在登录工作，然后它不再工作？感谢
这是我项目的一些部分：
登录部分，它运行正常：
private void btnLogin_Click(object sender, EventArgs e)
{
String user = txtUser.Text;
String pass = txtPass.Text;
ClientConnectionHandler handler = ClientConnectionHandler.getInstance();
handler.sendMessage("#login#" + user + " " + pass + "#");
User u = (User) handler.receive();
if (u == null)
{
MessageBox.Show("Username/Password is wrong");
}
else
{
if (u.getRang().Equals("admin"))
{
(new AdminWin(u)).Show();
this.Hide();
}
else{
(new ClientWin(u)).Show();
this.Hide();
}
}
handler.kill();
}
getClientList部分，它不起作用：
public partial class AdminWin : Form
{
private User user;
public AdminWin(User u)
{
user = u;
InitializeComponent();
ClientConnectionHandler handler = ClientConnectionHandler.getInstance();
handler.sendMessage("#getClientList# #");
handler.receive();
//listUsers.DataSource = users;
}
}
ClientConnectionHandler：
public class ClientConnectionHandler
{
private static ClientConnectionHandler INSTANCE;
private static Socket socket;
private ClientConnectionHandler()
{
socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
IPEndPoint ip = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 1234);
socket.Connect("127.0.0.1", 1234);
}
public static ClientConnectionHandler getInstance()
{
if (INSTANCE == null)
INSTANCE = new ClientConnectionHandler();
return INSTANCE;
}
public void sendMessage(String message)
{
byte[] buffer = new byte[1024];
IFormatter formatter = new BinaryFormatter();
Stream stream = new MemoryStream(buffer);
formatter.Serialize(stream, message);
stream.Flush();
socket.Send(buffer, buffer.Length, 0);
}
public Object receive()
{
byte[] buffer = new byte[10240];
socket.Receive(buffer);
return toObject(buffer);
}
private Object toObject(byte[] byteArray)
{
MemoryStream memStream = new MemoryStream();
BinaryFormatter binForm = new BinaryFormatter();
memStream.Write(byteArray, 0, byteArray.Length);
memStream.Seek(0, SeekOrigin.Begin);
Object obj = (Object)binForm.Deserialize(memStream);
return obj;
}
public void kill()
{
socket.Close();
}
}
服务器类：
class Server
{
public static void Main()
{
IPEndPoint ipEndPoint = new IPEndPoint(IPAddress.Any, 1234);
Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.IP);
socket.Bind(ipEndPoint);
socket.Listen(100);
Console.WriteLine("Server Started");
while (true)
{
Socket clientSocket = socket.Accept();
clientSocket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true);
Thread clientThread = new Thread(new ThreadStart(new ServerConnectionHandler(clientSocket).handle));
clientThread.Start();
}
}
}
ServerConnectionHandler：
class ServerConnectionHandler
{
private Socket socket;
public ServerConnectionHandler(Socket socket)
{
this.socket = socket;
}
public void handle()
{
byte[] data = new byte[1024];
int receivedDataLength = socket.Receive(data);
String stringData = new ASCIIEncoding().GetString(data);
stringData = stringData.Substring(stringData.IndexOf("#"));
Console.WriteLine(stringData);
string[] bySharp = stringData.Split('#');
string action = bySharp[1];
string info = bySharp[2];
Console.WriteLine(action + " " + info);
switch (action)
{
case "login": handleLogin(info); break;
case "getClientList": handleClientList(); break;
case "getCDsForClient": handleCDList(info); break;
case "addCDForClient": handleAdd(info); break;
case "remCD": handleRem(info); break;
case "modCD": handleMod(info); break;
}
}
private void handleLogin(string info)
{
string[] bySpace = info.Split(' ');
string user = bySpace[0];
string pass = bySpace[1];
User u = RepositoryManager.getInstance().getUser(user, pass);
sendToClient(toByteArray(u));
}
private void handleClientList()
{
sendToClient(toByteArray(RepositoryManager.getInstance().getClientList()));
}
private void handleCDList(string info)
{
long userId = long.Parse(info);
sendToClient(toByteArray(RepositoryManager.getInstance().getCDs(userId)));
}
private void handleAdd(string info)
{
string[] byTilda = info.Split('~');
long userId = long.Parse(byTilda[0]);
String cdName = byTilda[1];
String cdType = byTilda[2];
RepositoryManager.getInstance().addCD(userId, cdName,
cdType);
}
private void handleRem(string info)
{
string[] bySpace = info.Split(' ');
long userId = long.Parse(bySpace[0]);
long cdId = long.Parse(bySpace[1]);
RepositoryManager.getInstance().remCD(userId, cdId);
}
private void handleMod(string info)
{
string[] byTilda = info.Split('~');
long userId = long.Parse(byTilda[0]);
long cdId = long.Parse(byTilda[1]);
String newName = byTilda[2];
String newType = byTilda[3];
RepositoryManager.getInstance().modCD(userId, cdId,
newName, newType);
}
private void sendToClient(byte[] info)
{
socket.Send(info, info.Length, 0);
}
private byte[] toByteArray(Object o)
{
BinaryFormatter bf = new BinaryFormatter();
MemoryStream ms = new MemoryStream();
bf.Serialize(ms, o);
return ms.ToArray();
}
}
答案 0 :(得分：0)
您的Read方法存在缺陷，无法按预期工作。
TCP是基于流的，而不是基于消息的。在Read上可以包含以下任何消息：
因此，您需要使用某种方法来查看是否已收到完整的消息。最常见的方法是：
您还应该接受.NET存在的命名准则，并使用camelCase停止方法名称。你编写的不是Java;）