网络
1 import java.io.BufferedReader; 2 import java.io.InputStreamReader; 3 import java.io.PrintWriter; 4 import java.net.ServerSocket; 5 import java.net.Socket; 6 7 8 public class Server { 9 public static void main(String[] args) { 10 ServerSocket serverSocket = null; 11 Socket socket = null; 12 try { 13 serverSocket = new ServerSocket(8585); 14 /** 15 * 在服务器端接受客户端的连接, 16 */ 17 while(true){ 18 try{ 19 socket = serverSocket.accept(); 20 //System.out.println("A client connect!"); 21 //System.out.println(""+socket.getPort() + socket.getInetAddress()); 22 String name = socket.getInetAddress().getHostName() + " " + socket.getPort(); 23 System.out.println(name); 24 //通过套接字进行数据传输 25 BufferedReader br = new BufferedReader(new InputStreamReader(socket.getInputStream())); 26 String str = br.readLine(); 27 System.out.println(str); 28 PrintWriter out = new PrintWriter(socket.getOutputStream(), true); 29 out.println("Receive:" + str); 30 }finally{ 31 if (socket != null) { 32 socket.close(); 33 } 34 } 35 } 36 } catch (Exception e) { 37 e.printStackTrace(); 38 } 39 finally{ 40 try { 41 if (serverSocket != null) { 42 serverSocket.close(); 43 } 44 } catch (Exception e2) { 45 e2.printStackTrace();
import java.net.Socket; import java.net.UnknownHostException; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.PrintWriter; //客户端 public class Client { public static void main(String[] args) { Socket socket = null; try { /*Creates a stream socket and connects it to the specified port number at the specified IP address.*/ socket = new Socket("127.0.0.1", 8585); PrintWriter out = new PrintWriter(socket.getOutputStream(), true);//字符输出用PrintWriter out.println("Hello World!"); BufferedReader br = new BufferedReader(new InputStreamReader(socket.getInputStream()));//接受字符 String str = br.readLine(); System.out.print(str); } catch (UnknownHostException e) { e.printStackTrace(); }catch (IOException e) { e.printStackTrace(); } finally{ try { if (socket != null) { socket.close(); } } catch (Exception e) { e.printStackTrace(); } } } }