1
import java.io.*;
import java.net.*;
import java.util.Scanner;
public class HTCPCPClient {
public static void main(String[] args) throws IOException {
HTCPCPClient client = new HTCPCPClient();
System.out.println("WELCOME TO THE COFFEE POT APPLICATION!");
client.startClient();
}
private void startClient() throws IOException {
final String HOST = "localhost";
final int PORT_NUMBER = 4444;
Socket clientSocket = null;
PrintWriter outToServer = null;
BufferedReader in = null;
String serverSentence = null;
String clientSentence = null;
BufferedReader inFromServer = null;
// create new socket
clientSocket = new Socket(HOST, PORT_NUMBER);
outToServer = new PrintWriter(clientSocket.getOutputStream(), true);
in = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
do { // wait for 'QUIT'
// Create input stream
inFromServer = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
kbd = new Scanner(System.in);
clientSentence = null;
kbdInput = null;
System.out.println("Enter Method (e.g. BREW)");
// next line of kbdInput from keybd.
kbdInput = kbd.nextLine().trim();
clientSentence = kbdInput + " coffee://127.0.0.1/pot-1 HTCPCP-new Accept-Additions: ";
clientSentence = clientSentence + "\nstart\[email protected]@";
// Send clientSentence to server
outToServer.println(clientSentence);
outToServer.flush();
System.out.println("\nMESSAGE FROM SERVER:");
do {
serverSentence = inFromServer.readLine();
System.out.println("\t" + serverSentence);
if (serverSentence.equals("@@") == true) {
break;
}
} while (true);
// read and print message from server
} while (!clientSentence.contains("QUIT"));
// close connections
outToServer.close();
in.close();
inFromServer.close();
clientSocket.close();
}
}
服务器线程
import java.io.*;
import java.net.*;
public class HTCPCPClientWorker extends Thread {
Socket cwsocket = null;
public HTCPCPClientWorker(Socket cwsocket) {
super("ClientWorker");
this.cwsocket = cwsocket;
}
@Override
public void run() {
String clientSentence = null;
BufferedReader inFromClient = null;
PrintWriter outToClient = null;
try {
inFromClient = new BufferedReader(new InputStreamReader(cwsocket.getInputStream()));
outToClient = new PrintWriter(cwsocket.getOutputStream(), true);
} catch (IOException ex) {
System.err.println("Cannot create streams");
}
try {
do { // end when client says QUIT
StringBuffer clientInputLine[] = new StringBuffer[3];
clientInputLine[0] = new StringBuffer();
clientInputLine[1] = new StringBuffer();
// Get next message from client
for (int i = 0; i <= clientInputLine.length; i++) {
// read input line from BufferedReader
clientSentence = inFromClient.readLine();
// wait for EOF = @@
System.out.println("\tInput: " + clientSentence);
if (clientSentence.equals("@@") == true) {
break;
}
clientInputLine[i].append(clientSentence);
if (clientSentence.contains("BREW")) {
outToClient.println("Message: " + clientSentence);
outToClient.println("HTCPCP-new 200 OK BREW START command completed.");
outToClient.println("Content-length: " + clientSentence.length());
outToClient.println("@@");
outToClient.flush();
} else {
outToClient.println("Message: " + clientSentence);
outToClient.println("HTCPCP-new 400 Bad Request.");
outToClient.println("Content-length: " + clientSentence.length());
outToClient.println("@@");
outToClient.flush();
}
} // end for loop
} while (!clientSentence.contains("QUIT"));
outToClient.println("GOODBYE!");
outToClient.flush();
System.out.println("\tClient has disconnected.");
cwsocket.close();
} catch (IOException e) {
e.printStackTrace();
}
} // end run
} end HTCPCPClientWorker.java
客户端控制台
WELCOME TO THE COFFEE POT APPLICATION!
Select an option:
1. Brew
2. Quit
1
Enter URL (e.g. BREW coffee://127.0.0.1/pot-1 HTCPCP-new)
BREW
MESSAGE FROM SERVER:
Message: BREW Accept-Additions:
HTCPCP-new 200 OK BREW START command completed.
Content-length: 23
@@
Select an option:
1. Brew
2. Quit
1
Enter URL (e.g. BREW coffee://127.0.0.1/pot-1 HTCPCP-new)
BREW
MESSAGE FROM SERVER:
Message: start
HTCPCP-new 400 Bad Request.
Content-length: 5
@@
Select an option:
1. Brew
2. Quit
注意,来自服务器的消息,尽管同样是不同的正在输入网址。
任何想法我错了吗?