Java网络编程基础(二) Socket类的使用方法

Socket s = new Socket ( );InputStream is = sgetInputStream ();// Read from the streamisclose ();      sclose ();

// SSClientjavaimport javaio*;import *; class SSClient{public static void main (String [] args){String host = localhost;// If user specifies a commandline argument that argument// redivsents the host nameif (argslength == )host = args [];BufferedReader br = null;PrintWriter pw = null;Socket s = null;try{// Create a socket that attempts to connect to the server// program on the host at port s = new Socket (host );// Create an input stream reader that chains to the sockets// byteoriented input stream The input stream reader// converts bytes read from the socket to characters The// conversion is based on the platforms default character// setInputStreamReader isr;isr = new InputStreamReader (sgetInputStream ());// Create a buffered reader that chains to the input stream// reader The buffered reader supplies a convenient method// for reading entire lines of textbr = new BufferedReader (isr);// Create a print writer that chains to the sockets byte// oriented output stream The print writer creates an// intermediate output stream writer that converts// characters sent to the socket to bytes The conversion// is based on the platforms default character setpw = new PrintWriter (sgetOutputStream () true);// Send the DATE command to the serverpwprintln (DATE);// Obtain and print the current date/timeSystemoutprintln (brreadLine ());// Send the PAUSE command to the server This allows several// clients to start and verifies that the server is spawning// multiple threadspwprintln (PAUSE);// Send the DOW command to the serverpwprintln (DOW);// Obtain and print the current day of weekSystemoutprintln (brreadLine ());// Send the DOM command to the serverpwprintln (DOM);// Obtain and print the current day of monthSystemoutprintln (brreadLine ());// Send the DOY command to the serverpwprintln (DOY);// Obtain and print the current day of yearSystemoutprintln (brreadLine ());}catch (IOException e){Systemoutprintln (etoString ());}finally{try{if (br != null)brclose ();if (pw != null)pwclose ();if (s != null)sclose ();}catch (IOException e){}}}      }