我的程序工作正常,許多用戶可以連接並向服務器發送命令。 但是,當用戶使用命令向服務器發送垃圾郵件時,服務器會阻止所有其他客戶端,並且服務器不會從垃圾郵件發送者以外的客戶端接收消息。 這是爲什麼?Java TCP多線程問題
TCPAccept聯繫
package game.server;
import java.io.IOException;
import java.net.Socket;
public class TCPAcceptConnections implements Runnable
{
public static Socket clientSocket = null;;
int clientID = -1;
public void run()
{
while(Main.TCP)
{
try
{
clientSocket = TCPServer.serverSocket.accept();
System.out.println("Client Connected.");
clientID++;
new TCPClientManager(clientSocket, clientID).run();
}
catch (IOException e)
{
System.out.println("Couldn't create client socket.");
System.exit(-1);
}
}
}
}
TCPClientManager:
package game.server;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket;
public class TCPClientManager implements Runnable
{
Socket client;
int clientID;
static PrintWriter out;
static BufferedReader in;
String inputLine, outputLine;
boolean destroy = false;
public TCPClientManager(Socket cs, int id)
{
try
{
client = cs;
clientID = id;
out = new PrintWriter(client.getOutputStream(), true);
in = new BufferedReader(new InputStreamReader(client.getInputStream()));
} catch(IOException e)
{
e.printStackTrace();
}
}
public void run()
{
System.out.println("Created TCPManager for client.");
String command;
while(!destroy)
{
try
{
if((command = in.readLine()) != null) //If received something
{
System.out.println("Commad received: " + command);
System.out.println(" " + Commands.proccessCommand(command));
System.out.println("Command proccessed");
}
else
{
client.close();
destroy = true;
}
} catch (IOException e)
{
try
{
client.close();
} catch (IOException e1)
{
e1.printStackTrace();
destroy = true;
}
System.out.println("Client lost connection.");
destroy = true;
}
}
System.out.println("TCPManager for client destroyed.");
}
}
命令:
package game.server;
public class Commands
{
public static String proccessCommand(String command)
{
if(command.equalsIgnoreCase("cp"))
{
System.out.println("Creating player...");
System.out.println(" Retrieved client");
return "Player Created";
}
else
{
return "Unkown command: " + command;
}
}
}
僅供參考,除非您改變線程工作方式,否則不應該擴展'Thread'。在像你這樣的情況下,你只需要一個'run'方法就可以讓線程運行,實現'Runnable'並且說'new Thread(new TCPClientManager(clientSocket,clientID))。start();'獲得相同的功能暗示線程的工作方式不同。 – cHao