?? router.java
字號:
import java.io.*;
import java.net.*;
public class Router{
public static void main(String args[])throws Exception
{
String clientSentence;
String modifiedSentence;
ServerSocket welcomeSocket = new ServerSocket (4000);
double y;
while(true){
System.out.println("Router listening!");
Socket connectionSocket = welcomeSocket.accept();
BufferedReader inFromClient = new BufferedReader(new InputStreamReader(
connectionSocket.getInputStream()));
clientSentence = inFromClient.readLine();
System.out.println(clientSentence);
DataOutputStream outToClient =new DataOutputStream(
connectionSocket.getOutputStream());
y=Math.random()*100+1;
if(y>50)
outToClient.writeBytes("UAK"+'\n');
if(y<=50)
{
outToClient.writeBytes("ACK"+'\n');
Socket clientSocket = new Socket("127.0.0.1",8000);
DataOutputStream outToServer = new DataOutputStream (
clientSocket.getOutputStream());
BufferedReader inFromServer = new BufferedReader (new InputStreamReader (
clientSocket.getInputStream()));
outToServer.writeBytes(clientSentence + '\n');
System.out.println(clientSentence+"send to 8000");
modifiedSentence = inFromServer.readLine();
}
else System.out.println(clientSentence+"dropped!");
}
}
}
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