TCP Demo

//客户端

1import java.io.*;
2import java.net.*;
3
4public class Myclient {
5
6	public static void main(String[] args) {
7		
8		Socket client= null;
9		BufferedWriter out = null;
10		
11		try {
12			client = new Socket(InetAddress.getLocalHost(),5555);
13			
14			out = new BufferedWriter(new OutputStreamWriter(client.getOutputStream()));
15			out.write("11111111111");
16			out.flush();
17			
18		} catch (IOException e) {
19			
20			e.printStackTrace();
21		}finally {
22			
23			try {
24				out.close();
25			} catch (IOException e1) {
26				
27				e1.printStackTrace();
28			}
29			
30			try {
31				client.close();
32			} catch (IOException e) {
33				
34				e.printStackTrace();
35			}
36		}
37		
38	}
39
40}

//客户端

1import java.io.*;
2import java.net.*;
3
4public class Myservice {
5
6	public static void main(String[] args) {
7		ServerSocket server= null;
8		Socket client = null;
9		BufferedReader in = null;
10		try {
11			server = new ServerSocket(5555);
12			client = server.accept();
13			in = new BufferedReader(new InputStreamReader(client.getInputStream()));
14			System.out.println(in.readLine());
15			
16		} catch (Exception e) {
17			e.printStackTrace();
18		}finally {
19			try {
20				if(in!=null)
21				in.close();
22			} catch (IOException e) {
23			
24				e.printStackTrace();
25			}
26			try {
27				if(client!=null)
28				client.close();
29			} catch (IOException e) {
30			
31				e.printStackTrace();
32			}
33			try {
34				if(server!=null)
35				server.close();
36			} catch (IOException e) {
37			
38				e.printStackTrace();
39			}
40		}
41		
42
43	}
44
45}