深入理解網絡編程(二)
1、Socket編程
ServerSocket 方法
①Socket accept() 如果接收到一個客戶端Socket的連接請求,該方法將返回一個與連接客戶端Socket對應的Socket
②ServerSocket(int port)
③ServerSocket(int port,int backlog)
④ServerSocket(int port,int backlog,InetAddress localAddr):
Socket socket = serversocket.accept()
socket.getInputStream();..........
Socket 方法
InputStream getInputStream():返回Socket對象的對應的輸入流。
OutPutStream getOutStream();返回Socket對象的對應的輸出流。
socket = new Socket(HOST,PORT)
BufferedReader br = new BufferedReader(new InputStreamReader(socket.getInputStream()));
PrintWriter out = new PrintWriter(new BufferedWriter(new OutputStreamWriter(socket.getOutputStream())),true);
<span style="font-size:18px;">public class SocketServer {
ServerSocket sever;
public SocketServer(int port){
try{
sever = new ServerSocket(port);
}catch(IOException e){
e.printStackTrace();
}
}
public void beginListen(){
while(true){
try{
final Socket socket = sever.accept();
new Thread(new Runnable(){
public void run(){
BufferedReader in;
try{
in = new BufferedReader(new InputStreamReader(socket.getInputStream(),"UTF-8"));
PrintWriter out = new PrintWriter(socket.getOutputStream());
while (!socket.isClosed()){
String str;
str = in.readLine();
out.println("Hello!world!! " + str);
out.flush();
if (str == null || str.equals("end"))
break;
System.out.println(str);
}
socket.close();
}catch(IOException e){
e.printStackTrace();
}
}
}).start();
}catch(IOException e){
e.printStackTrace();
}
}
}
}</span>
Server
public class TestSocketServer {
public static void main(String[] argvs){
SocketServer server = new SocketServer(12345);
server.beginListen();
}
}
Client
public class SocketClientDemo extends Activity implements Runnable {
private TextView tv_msg = null;
private EditText ed_msg = null;
private Button btn_send = null;
private static final String HOST = "192.168.1.223";
private static final int PORT = 12345;
private Socket socket = null;
private BufferedReader in = null;
private PrintWriter out = null;
private String content = "";
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
tv_msg = (TextView) findViewById(R.id.TextView);
ed_msg = (EditText) findViewById(R.id.EditText01);
btn_send = (Button) findViewById(R.id.Button01);
try {
socket = new Socket(HOST, PORT);
in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
out = new PrintWriter(new BufferedWriter(new OutputStreamWriter(
socket.getOutputStream())), true);
} catch (IOException ex) {
ex.printStackTrace();
ShowDialog("login exception" + ex.getMessage());
}
btn_send.setOnClickListener(new Button.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
String msg = ed_msg.getText().toString();
if (socket.isConnected()) {
if (!socket.isOutputShutdown()) {
out.println(msg);
}
}
}
});
new Thread(SocketDemo.this).start();
}
public void run() {
try {
while (true) {
if (socket.isConnected()) {
if (!socket.isInputShutdown()) {
if ((content = in.readLine()) != null) {
content += "\n";
Log.d("socket","socket:"+content);
} else {
}
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
}