编写serversocket简单示例1

package j2se.core.net.tcp;

import java.io.DataOutputStream;
import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;

public class Server {
public static void main(String[] args) throws IOException {
ServerSocket server = new ServerSocket(8888);
System.out.println("服务器启动中...");

while(true) {
// 主线程会一直阻塞到客户连接的传入
Socket socket = server.accept();

DataOutputStream output = new DataOutputStream(
socket.getOutputStream());

output.writeUTF("IP:" + socket.getInetAddress());
output.writeUTF("PORT:" + socket.getPort());

output.flush();
output.close();
socket.close();
}
}
}

package j2se.core.net.tcp;

import java.io.DataInputStream;
import java.io.IOException;
import java.net.Socket;
import java.util.Scanner;

public class Client {
public static void main(String[] args) throws IOException {
Scanner scan = new Scanner(System.in);
System.out.println("请输入服务器地址:");
String ip = scan.nextLine();
System.out.println("请输入服务器端口:");
int port = scan.nextInt();

Socket socket = new Socket(ip,port);
DataInputStream input = new DataInputStream(socket.getInputStream());
try
{
while (true) {
System.out.println(input.readUTF());
}
}catch(Exception ex){
//ex.printStackTrace();
}finally
{
input.close();
socket.close();
}
}
}