即时聊天线程

た入场券 2022-06-12 12:37 206阅读 0赞

package test1;
    
    
    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;  
    public class ServerThread extends Thread{
    	//每当侦听到一个新的客户端的时，服务端这边都要有一个Socket与之进行通信  
        public Socket socket = null;  
          
        //默认的构造方法，保留  
        public ServerThread(){}  
          
        //带参构造方法  
        public ServerThread(Socket socket){  
            this.socket = socket;  
        }  
          
        //覆写run方法  
        public void run(){  
            //获取输入字节流  
            InputStream in = null;  
              
            //将输入字节流包装成输入字符流  
            InputStreamReader isr = null;  
              
            //为字符输入流添加缓冲  
            BufferedReader br = null;  
              
            //收到信息之后，向客户端响应信息,获取输出字节流  
            OutputStream out = null;  
              
            //将字节输出流包装成字符打印输出流  
            PrintWriter pw = null;  
              
            try {  
                  
                in = socket.getInputStream();  
                isr = new InputStreamReader(in);  
                br = new BufferedReader(isr);  
                  
                //读取字符输入流中的数据  
                String data = null;  
                while((data = br.readLine()) != null){  
                    System.out.println("我是服务器，客户端说："+data);  
                }  
                  
                //调用shutDown方法关闭Socket输入流  
                socket.shutdownInput();  
                  
                out = socket.getOutputStream();  
                pw = new PrintWriter(out);  
                pw.write("用户名和密码正确");  
                pw.flush();  
                  
                //调用shutDown方法关闭Socket输出流  
                socket.shutdownOutput();  
                  
            } catch (IOException e) {  
                e.printStackTrace();  
            }finally{  
                  
                //关闭资源  
                try {  
                    if(null != pw)  
                        pw.close();  
                    if(null != out)  
                        out.close();  
                    if(null != br)  
                        br.close();  
                    if(null != isr)  
                        isr.close();  
                    if(null != in)  
                        in.close();  
                    if(null != socket)  
                        socket.close();  
                } catch (IOException e) {  
                    e.printStackTrace();  
                }  
            }  
        }  
    }