网络编程-1

一、服务端

 1 public class SocketServer implements Runnable {
 2 
 3     //端口
 4     private final int port;
 5     
 6     private ServerSocket ss;
 7     
 8     /**
 9      * 
10      */
11     public SocketServer(int port) {
12         this.port = port;
13     }
14     
15 
16     public void server(){
17 //        socket(AF_INET,SOCK_STREAM,IPPOTO_TCP);
18         try {
19             // 服务端阻塞接收客户端请求
20             Socket s = ss.accept();
21             //输入流封装
22             DataInputStream din = new DataInputStream(s.getInputStream());
23             //数据接受
24             String req = din.readUTF();
25             System.out.println("服务端请求数据："+req);
26             //输出流封装
27             DataOutputStream dou = new DataOutputStream(s.getOutputStream());
28             String s1 = "收到,收到。我是08";
29             //数据发送
30             dou.writeUTF(s1);
31             //刷出数据
32             dou.flush();
33             //关闭流和socket
34             dou.close();
35             din.close();
36
37             s.close();
38         } catch (IOException e) {
39             // TODO Auto-generated catch block
40             e.printStackTrace();
41         }
42     }
43 
44     /**
45      * runnable接口
46      */
47     public void run() {
48         // TODO Auto-generated method stub
49         try {
50             System.out.println("服务端启动 ,开启:"+port+"端口");
51             ss = new ServerSocket(port);
52         } catch (IOException e) {
53             // TODO Auto-generated catch block
54             e.printStackTrace();
55         }
56         while(true){
57             server();
58         }
59     }
60 
61     public static void main(String[] args) {
62         SocketServer ss = new SocketServer(8090);
63         
64         Thread th = new Thread(ss);
65         
66         th.start();
67     }
68 }

二、客户端

 1 public class SocketClient{
 2     
 3     /**
 4      * 连接服务器
 5      */
 6     public void client(){
 7         Socket so = null; 
 8         try {
 9             //根据ip和端口来获取socket对象
10             so = new Socket("192.168.0.114",8090);
11             //根据socket对象来获取输出流
12 //            OutputStream out = so.getOutputStream();
13             //根据socket对象来获取输出流
14             DataOutputStream out = new DataOutputStream(so.getOutputStream());
15             //获取本地的ip
16             System.out.println(so.getLocalAddress());
17             //获取本地的端口
18             System.out.println(so.getLocalPort());
19             //根据socket对象来获取输入流，获取目标对象的返回信息
20 //            InputStream out = so.getInputStream();
21             DataInputStream in = new DataInputStream(so.getInputStream());
22             //返回信息接D收byte数组
23             byte[] b = new byte[1024];
24             //定义发送过去的信息
25 //            String str = "bye";
26             //将String类型转换为byte数组，并将编码格式设置为utf-8
27 //            byte[] by = str.getBytes("UTF-8");
28             //通过输出流发送信息
29 //            out.write(by);
30             out.writeUTF("我是07,我是07,收到请回复");
31             //将信息刷过去
32             out.flush();
33             //通过输入流获取返回的信息并存储到byte数组b中
34 //            in.read(b);
35             //直接读取utf格式
36             String resp=in.readUTF();
37             //打印接受的信息，并将byte数组转换为String类型，并将编码格式转换为utf-8
38 //            System.out.println(new String(b,"utf-8"));
39             System.out.println(resp);
40             //关闭输入流、输出流和socket
41             in.close();
42             out.close();
43             so.close();
44         } catch (UnknownHostException e) {
45             // TODO Auto-generated catch block
46             e.printStackTrace();
47         } catch (IOException e) {
48             // TODO Auto-generated catch block
49             e.printStackTrace();
50         }
51     }
52     
53     
54     public static void main(String[] args) {
55         SocketClient sc = new SocketClient();
56         sc.client();
57     }
58 
59 }