try {

//1.創建客戶端Socket，指定服務器地址和端口

Socket socket=new Socket("localhost", 1280);

//2.獲取輸出流，向服務器端發送信息

OutputStream os=socket.getOutputStream();//字節輸出流

PrintWriter pw=new PrintWriter(os);//將輸出流包裝為打印流

pw.write("用戶名：alice;密碼：789");

pw.flush();

// socket.shutdownOutput();//關閉輸出流

//3.獲取輸入流，并讀取服務器端的響應信息

InputStream is=socket.getInputStream();

BufferedReader br=new BufferedReader(new InputStreamReader(is));

String info=null;

while((info=br.readLine())!=null){

System.out.println("我是客戶端，服務器說："+info);

}

//4.關閉資源

br.close();

is.close();

pw.close();

os.close();

socket.close();

} catch (UnknownHostException e) {

e.printStackTrace();

} catch (IOException e) {

e.printStackTrace();

}

java.net.ConnectException: Connection timed out: connect

at java.net.DualStackPlainSocketImpl.connect0(Native Method)

at java.net.DualStackPlainSocketImpl.socketConnect(Unknown Source)

at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source)

at java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source)

at java.net.AbstractPlainSocketImpl.connect(Unknown Source)

at java.net.PlainSocketImpl.connect(Unknown Source)

at java.net.SocksSocketImpl.connect(Unknown Source)

at java.net.Socket.connect(Unknown Source)

at java.net.Socket.connect(Unknown Source)

at java.net.Socket.<init>(Unknown Source)

at java.net.Socket.<init>(Unknown Source)

at com.socket.Client.main(Client.java:49)