客户端给服务端发送文本。服务端将文本转成大写在返回给客户端

/*

  * 建立一个文本转换服务器

  * 客户端给服务端发送文本。服务端将文本转成大写在返回给客户端

  * 而且客户端可以不断的进行文本转换，当客户输入over时

  * 转换结束

  */

 public class C {

 public static void main(String[] args) throws UnknownHostException, IOException {

Socket s=new Socket("10.218.24.253",10008);

BufferedReader bufr=new BufferedReader(new InputStreamReader(System.in));


BufferedWriter bufwOut=new BufferedWriter(new OutputStreamWriter(s.getOutputStream()));


BufferedReader bufrIn=new BufferedReader(new InputStreamReader(s.getInputStream()));


String line=null;

while((line=bufr.readLine())!=null){


if("over".equals(line)){

break;

}

bufwOut.write(line);

bufwOut.newLine();

bufwOut.flush();

String str=bufrIn.readLine();

}

bufr.close();

s.close();

 }
}
//****************************************
public class S {
public static void main(String[] args) throws IOException {
ServerSocket ss=new ServerSocket(10008);
Socket s=ss.accept();
BufferedReader bufIn=new BufferedReader(new InputStreamReader(s.getInputStream()));
BufferedWriter bufout=new BufferedWriter(new OutputStreamWriter(s.getOutputStream()));
String line=null;
while((line=bufIn.readLine())!=null){
bufout.write(line.toUpperCase());
bufout.newLine();
bufout.flush();
}
s.close();
ss.close();

}
 }