On-Machine topic (beginner)-Java network operation-socket implements client and server-side communication two (Java)

The previous section implemented a client like server-side send request, this section will implement server-to-client callback information, the implementation of the principle is very simple, on the original basis, the server-side implementation of the output stream, the client implementation of the input stream can be, the specific code is as follows:

Server-side:

Package Com.socket.demo;import Java.io.bufferedreader;import Java.io.inputstream;import java.io.InputStreamReader; Import Java.io.outputstream;import java.io.printwriter;import Java.net.serversocket;import java.net.Socket;public Class Server {public static void main (string[] args) {try{serversocket serversocket=new serversocket (8888); System.out.println ("Run----------------server, start monitoring requests----------------"); Socket socket=serversocket.accept ();//Start monitoring InputStream inputstream=socket.getinputstream (); BufferedReader bufferedreader=new BufferedReader (New InputStreamReader (InputStream));//Get Request Content string Info;while (( Info=bufferedreader.readline ())!=null) {System.out.println ("I am the server side, client request is:" +info);} Socket.shutdowninput ();//server-side to the client callback information OutputStream Outputstream=socket.getoutputstream (); PrintWriter printwriter=new PrintWriter (outputstream);p rintwriter.write ("Client Hello, I have received your message");p Rintwriter.flush () ;//Close Resource printwriter.close (); Outputstream.close (); Bufferedreader.close (); Inputstream.close (); Socket.close (); ServerSOcket.close ();} catch (Exception Exception) {}}}

Client:

Package Com.socket.demo;import Java.io.bufferedreader;import Java.io.ioexception;import java.io.InputStream;import Java.io.inputstreamreader;import Java.io.outputstream;import Java.io.printwriter;import Java.net.Socket;import Java.net.unknownhostexception;public class Client {public static void main (string[] args) {try {//Send to 8888 port socket socket =new Socket ("127.0.0.1", 8888);//output Stream OutputStream outputstream=socket.getoutputstream (); PrintWriter printwriter=new PrintWriter (outputstream);p rintwriter.write ("Server side Hello, I am the client. ");p Rintwriter.flush (); Socket.shutdownoutput ();//This is not less!!!!!!!!!!!!!! Receive server-side backhaul information InputStream inputstream=socket.getinputstream (); BufferedReader bufferedreader=new BufferedReader (New InputStreamReader (InputStream)); String Info;while ((Info=bufferedreader.readline ())!=null) {System.out.println ("I am the client, server side returns::" +info);} Close resource Bufferedreader.close (); Inputstream.close ();p rintwriter.close (); Outputstream.close (); Socket.close ();} catch (Unknownhostexception e) {e.printstacktrace ();} catCH (ioexception e) {e.printstacktrace ();}}} 

Run the following example:

Server Console output:

Client Console output:

How do I switch the console?

Click the small button next to this computer to select the console.

There is also a small problem when implementing this feature, as follows:

The reason is that the output is not turned off on the client, that is, this line of code:

Socket.shutdownoutput ();

Be careful here.

Like friends please pay attention to me, thank you

On-Machine topic (beginner)-Java network operation-socket implements client and server-side communication two (Java)