0
Bitte helfen, Verbindung zum Server wurde hergestellt, aber der Server wird auf keine Anfragen antworten. Nur versuchen, die Uhrzeit und das Datum zu erhalten, indem Sie den Server "1" senden. Ps Ich weiß, ich sollte nicht alle Fälle von 1-7 haben, aber ich möchte nur arbeiten das Datum Anzeige Zeit erhalten, bevor über alle anderen SorgenKeine Antwort von Server Socket Java
import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.Socket;
import java.util.Date;
import java.util.Scanner;
/**
*
* @author samdo
*/
public class SocketProgrammingSamD {
/**
* @param args the command line arguments
*/
private static Scanner in;
public static void main(String[] args) throws IOException {
System.out.println("Samuel Donini");
System.out.println(" ");
System.out.println("Project 1");
System.out.println(" ");
System.out.println(" ");
//new Driver().execute(args);//Creates an instance of the Driver class and Calls the Driver.execute method
in = new Scanner(System.in);
System.out.println("(Client) Enter Server Ip to Connect to(Empty will give localhost):");
String ip = in.nextLine();
System.out.println("(Client) Enter your server port no:");
int port = in.nextInt();
if (ip == null || ip.length() == 0) {
ip = "localhost";
}
System.out.println("Connecting to " + ip + ":" + port);
// for taking input from client
// InputStream inputStream = connectionSocket.getInputStream();
// Try to connect to port and the IP address given on the command line.
try (Socket socket = new Socket(ip, port)) {
// for taking input from client
// InputStream inputStream = connectionSocket.getInputStream();
InputStreamReader inputStreamReader = new InputStreamReader(System.in);
BufferedReader inputFromClient = new BufferedReader(inputStreamReader);
// for giving output to the client.
OutputStream outputStream = socket.getOutputStream();
// output to client, to send data to the server
DataOutputStream dataOutputStream = new DataOutputStream(outputStream);
// get output from server
InputStream serverInputStream = socket.getInputStream();
InputStreamReader inputStreamReaderFromServer = new InputStreamReader(
serverInputStream);
BufferedReader bufferReader = new BufferedReader(
inputStreamReaderFromServer);
//System.out.println("(Client) Give input:");
System.out.printf("Menu Options:\t\t\tCommands\n");
System.out.printf("-------------\t\t\t--------\n");
System.out.printf(" * 1 current Date & Time:\t1\n");
System.out.printf(" * 2 uptime: \t\t 2\n");
System.out.printf(" * 3 memory use: \t\t3\n");
System.out.printf(" * 4 Netstat: \t\t 4\n");
System.out.printf(" * 5 current users: \t\t5\n");
System.out.printf(" * 6 disk usage: \t\t6\n");
System.out.printf(" * 7 Quit: \t\t\t7\n\n");
String readingLineFromUser = inputFromClient.readLine();
// sending data to server
dataOutputStream.writeBytes(readingLineFromUser + "\n");
String getStringFromServer = bufferReader.readLine();
System.out.println("Got input from server (in client):" + getStringFromServer);
//attempts to get System Time
System.out.println("Requesting system time");
System.out.println("1");
//System.out.write("Server Date" + (new Date()).toString() + "\n");
System.out.println("Response from the server:\n");
// Read lines from the server and print them until "ServerDone" on
// a line by itself is encountered.
String answer;
while ((answer = inputFromClient.readLine()) != null && !answer.equals("ServerDone")) {
System.out.println(answer);
}
return;
}
}
}
import java.io.*;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.*;
public class Server {
private static ServerSocket severSocket;
private static Scanner in;
public static void main(String[] args) throws IOException {
in = new Scanner(System.in);
System.out.println("(Server) Enter your server port no:");
int port = in.nextInt();
System.out.println("Server Estabilsh Connection On Localhost or own ip with port : " + port);
severSocket = new ServerSocket(port);
System.out.println("Now you can run your client app.");
while (true) {
Socket connectionSocketListens = severSocket.accept();//Listens for a connection to be made to this socket and accepts it.
System.out.println("Accepted Client connection");
// for taking input from client
InputStream inputStream = connectionSocketListens.getInputStream();
InputStreamReader inputStreamReader = new InputStreamReader(
inputStream);
BufferedReader inputFromClient = new BufferedReader(
inputStreamReader);
// for giving output to the client.
OutputStream outputStream = connectionSocketListens.getOutputStream();
// output to client, to send data to the server
DataOutputStream dataOutputStream = new DataOutputStream(
outputStream);
// get output from server
String readingLineFromClientSocket = inputFromClient.readLine();
// sending data to client
String modified = doOperation(readingLineFromClientSocket);
// send data to client
dataOutputStream.writeBytes(modified + "\n");
// Read the request from the client! *** input = inputFromClient
String answer = inputFromClient.readLine();
System.out.println("Request from client "+answer);
Process cmdProc;
cmdProc = null;
// Execute the appropriate command.
if (answer.charAt(0) == '1') {
System.out.println("Responding to date and time request from the client ");
cmdProc = Runtime.getRuntime().exec("date");//MUST ADD TIME
}
if (answer.charAt(0) == '2') {
System.out.println("Responding to uptime request from the client ");
cmdProc = Runtime.getRuntime().exec("date");//MUST CHANGE
}
if (answer.charAt(0) == '3') {
System.out.println("Responding to memory use request from the client ");
cmdProc = Runtime.getRuntime().exec("date");
}
if (answer.charAt(0) == '4') {
System.out.println("Responding to Netstat request from the client ");
cmdProc = Runtime.getRuntime().exec("date");
}
if (answer.charAt(0) == '5') {
System.out.println("Responding to current users request from the client ");
cmdProc = Runtime.getRuntime().exec("date");
}
if (answer.charAt(0) == '6') {
System.out.println("Responding to disk usage request from the client ");
cmdProc = Runtime.getRuntime().exec("date");
}
if (answer.charAt(0) == '7') {
System.out.println("Responding to Quit request from the client ");
cmdProc = Runtime.getRuntime().exec("date");
}
else {
System.out.println("Unknown request ");
//need a socket.close or Server.close(); or something like that
return;
}
//Read the result of the commands and sent the result to the client one line at a time
// followed by the line "ServerDone"
BufferedReader cmdin = new BufferedReader(new InputStreamReader(cmdProc.getInputStream()));
String cmdans;
while ((cmdans = cmdin.readLine()) != null) {
System.out.println(cmdans);
}
System.out.println("ServerDone");
return;
}
}
private static String doOperation(String readingLineFromClientSocket) {
String[] array = readingLineFromClientSocket.split(" ");
StringBuilder strBuilder = new StringBuilder(array.length);
for (int i = array.length - 1; i >= 0; i--) {
String s = charReverse(array[i]);
strBuilder.append(s);
strBuilder.append(" ");
}
return strBuilder.toString();
}
private static String charReverse(String str) {
return new StringBuilder(str).reverse().toString();
}
}
Sind Sie absolut sicher, dass Ihr Beispiel nicht minimiert werden kann? –