Java TCP 程式

標籤：

伺服器採用BIO模式，每一個線程處理一個串連。問題出現在，如果使用BufferedReader去讀取字元流，如果沒有分行符號的話，那麼就會導致線程阻塞。

import java.io.*;import java.net.Socket;import java.net.InetAddress;import java.net.ServerSocket;import java.util.Scanner;class ServerSocketTest {public static void main(String[] args) {try {ServerSocket ss = new ServerSocket(6000);System.out.println("Server running, waitting for client to login ...");Socket s = ss.accept();OutputStream os = s.getOutputStream();InputStream is = s.getInputStream();os.write("Hello Wellcome\n".getBytes());os.flush();/*byte[] buf = new byte[1024];int len = is.read(buf);System.out.println(new String(buf,0,len));*/BufferedReader br = new BufferedReader(new InputStreamReader(is));String line = null;while((line = br.readLine()) != null){System.out.println(line);}os.close();is.close();s.close();ss.close();} catch (Exception e) {e.printStackTrace();}}}

 用戶端程式。

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.InetAddress;import java.net.Socket;import java.net.UnknownHostException;public class SocketTest {public static void main(String[] args){try {System.out.println(InetAddress.getLocalHost());Socket s = new Socket(InetAddress.getLocalHost(), 6000);OutputStream os = s.getOutputStream();PrintWriter pw = new PrintWriter(os);pw.write("username:fangying;password:123\n");pw.flush();InputStream is = s.getInputStream();BufferedReader br = new BufferedReader(new InputStreamReader(is));String line = null;while ((line = br.readLine()) != null) {System.out.println("client get :" + line);}br.close();is.close();pw.close();os.close();s.close();} catch (Exception e) {e.printStackTrace();}}}

 

Java TCP 程式