socket简单小例子



socket简单小例子

socketsocket编程 

Client

Java代码  

1. package socket;  
2. import java.io.BufferedWriter;  
3. import java.io.IOException;  
4. import java.io.OutputStream;  
5. import java.io.OutputStreamWriter;  
6. import java.net.Socket;  
7. import java.net.UnknownHostException;  
8. import java.util.Scanner;  
9.   
10. public class Client {  
11.     public static void main(String[] args) {  
12.         OutputStream output = null;  
13.         BufferedWriter writer = null;  
14.         Socket socket = null;  
15.         try {  
16.             //1.创建socket  
17.             socket = new Socket("localhost",9999);  
18.             //2.获取输出流  
19.             output = socket.getOutputStream();  
20.             //3.输出流包装成缓冲流  
21.             writer = new BufferedWriter(new OutputStreamWriter(output));  
22.             Scanner input = new Scanner(System.in);  
23.             System.out.println("start input");  
24.             //4.写入到输出流  
25.             writer.write(input.next());  
26.             //5.提交数据  
27.             writer.flush();  
28.         } catch (UnknownHostException e) {  
29.             e.printStackTrace();  
30.         } catch (IOException e) {  
31.             e.printStackTrace();  
32.         }finally{  
33.             try {  
34.                 writer.close();  
35.                 output.close();  
36.                 socket.close();  
37.             } catch (IOException e) {  
38.                 e.printStackTrace();  
39.             }  
40.         }  
41.           
42.     }  
43. }  

package socket;import java.io.BufferedWriter;import java.io.IOException;import java.io.OutputStream;import java.io.OutputStreamWriter;import java.net.Socket;import java.net.UnknownHostException;import java.util.Scanner;public class Client {public static void main(String[] args) {OutputStream output = null;BufferedWriter writer = null;Socket socket = null;try {//1.创建socketsocket = new Socket("localhost",9999);//2.获取输出流output = socket.getOutputStream();//3.输出流包装成缓冲流writer = new BufferedWriter(new OutputStreamWriter(output));Scanner input = new Scanner(System.in);System.out.println("start input");//4.写入到输出流writer.write(input.next());//5.提交数据writer.flush();} catch (UnknownHostException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}finally{try {writer.close();output.close();socket.close();} catch (IOException e) {e.printStackTrace();}}}}

Server

Java代码  

1. package socket;  
2.   
3. import java.io.BufferedReader;  
4. import java.io.IOException;  
5. import java.io.InputStream;  
6. import java.io.InputStreamReader;  
7. import java.net.ServerSocket;  
8. import java.net.Socket;  
9.   
10. public class Server {  
11.     public static void main(String[] args) {  
12.         Socket socket = null;  
13.         ServerSocket server = null;  
14.         InputStream is = null;  
15.         BufferedReader reader = null;  
16.         try {  
17.             //1.开启监听  
18.             server = new ServerSocket(9999);  
19.             System.out.println("start listener");  
20.             //2.接受客户端传过来的信息  
21.             socket = server.accept();  
22.             //3.获取输入流  
23.             is = socket.getInputStream();  
24.             //4.输入流包装成缓冲流  
25.             reader = new BufferedReader(new InputStreamReader(is));  
26.             //5.读取打印  
27.             System.out.println(reader.readLine());  
28.         } catch (IOException e) {  
29.             e.printStackTrace();  
30.         }finally{  
31.             try {  
32.                 is.close();  
33.                 reader.close();  
34.                 socket.close();  
35.                 server.close();  
36.             } catch (IOException e) {  
37.                 e.printStackTrace();  
38.             }  
39.         }  
40.     }  
41. }