ppppoi.java
来自「当我们编写JAVA应用程序时」· Java 代码 · 共 34 行
JAVA
34 行
import java.io.*;
import java.net.*;
public class EchoTest{
public static void main(Stringargs){
Socket echoSocket=null;
DataOutputStream os-null;
DataInputsStream is=null;
DataInputStream stdIn=new DataInputStream(System.in);
try{ echoSocket=new Socket(″myHost″,4444);
os=new DataOutputStream(echoSocket.getOutputStream());
is=newDataInputStream(echoSocket.getInputStream());
} catch(UnknownHostException e){
System.err.println(″Don`t know about host:myHost″);
} catch(IOException e){
System.err.println(″Couldn`t get I/O for the connection to:myHost″);
}
if(echoSocket!=null && os!=null&& is!=null){
try{
String userInput;
while((userInput=stdin.readLine())!
=null){
os.writeBytes(userInput);
os.writeByte(″′);
System.out.println(″echo:″+is.readLine()); }
os.close();
is.close();
echoSocket.close();
} catch (IOException e){
System.err.println(″I/O failed on the connection to:myHost″);
}
}
}
}
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