Java Socket套接字应用实例 java学习笔记(1)

为了学习Socket而写的一段小代码..实现客户端和服务端之间的文字通讯功能..
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客户端实例代码:
public class Client {
public static void startClient() throws IOException {
try {
Socket csocket = new Socket("127.0.0.1",15409);//创建Socket应用实例..连接服务器127.0.0.1 ..端口15409..
System.out.println("Client OK~");
System.out.println("===============");
System.out.println("");
BufferedReader socketIn = new BufferedReader( new InputStreamReader(csocket.getInputStream()));//从socket接收到的信息..
PrintStream socketOut = new PrintStream(csocket.getOutputStream());//从socket要发送的信息..
BufferedReader userIn = new BufferedReader( new InputStreamReader(System.in));//用户输入的信息..
String s;
while ( true ) {
System.out.print("Client Message: ");
s = userIn.readLine();
socketOut.println(s);//发送用户输入信息..
if ( s.trim().equals("BYE") ) break;//若用户输入为"BYE"则结束通讯连接..
else {
System.out.println("Please wait Server Message..");
System.out.println("");
}
s = socketIn.readLine();//阻塞程序..直到从socket上读取到收到的信息..
System.out.println("Server Message: " + s);
if ( s.trim().equals("BYE") ) break;//若接收到的信息为"BYE"则结束通讯连接..
}
socketIn.close();
socketOut.close();
userIn.close();
csocket.close();
}
catch(Exception e) {
System.out.println("Error: " + e);
}
}
public static void main(String [] args) {
try {
startClient();