socket简单小例子


socket简单小例子

socketsocket编程

Client

Java代码







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socket socket = 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(); } } } }

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socket
socket = 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







package socket;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.ServerSocket;
import java.net.Socket;

public class Server {
public static void main(String[] args) {
Socket socket = null;
ServerSocket server = null;
InputStream is = null;
BufferedReader reader = null;
try {
//1.开启监听
server = new ServerSocket(9999);
System.out.println("start listener");
//2.接受客户端传过来的信息
socket = server.accept();
//3.获取输入流
is = socket.getInputStream();
//4.输入流包装成缓冲流
reader = new BufferedReader(new InputStreamReader(is));
//5.读取打印
System.out.println(reader.readLine());
} catch (IOException e) {
e.printStackTrace();
}finally{
try {
is.close();
reader.close();
socket.close();
server.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}