//获取本地地址和端口号：
　　public void testSocket() throws Exception{
  　　Socket socket=new Socket("localhost",8088);
  　　InetAddress add=socket.getLocalAddress();
  　　System.out.println(add.getCanonicalHostName());
  　　System.out.println(add.getHostName());
  　　System.out.println(add.getLocalPort());
　 }

//获取远端地址和端口号：
  public static void testSocket() throws Exception{
    Socket socket=new Socket("localhost",8088);
    InetAddress inetAdd=socket.getInetAddress();
    System.out.println(inetAdd.getCanonicalHostName());
    System.out.println(inetAdd.getHostName());
    System.out.println(socket.getLocalPort());
  }

public static void testSocket() throws Exception {
    Socket socket = new Socket("localhost", 8088);
    OutputStream out = socket.getOutputStream();
    OutputStreamWriter osw = new OutputStreamWriter(out, "UTF-8");
    PrintWriter pw = new PrintWriter(osw, true);
    pw.println("输出的内容");//发送内容
    InputStream in=socket.getInputStream();
    InputStreamReader isr=new InputStreamReader(in, "UTF-8");
    BufferedReader br=new BufferedReader(isr);
    br.readLine();//读取接到的内容
 }