simpleserver.java

new DataOutputStream(connectionSocket .getOutputStream())

import java.io.*;
import java.net.ServerSocket;
import java.net.Socket;
public class SimpleServer {
  ServerSocket serverSkt=null;
  Socket clientSkt=null;
  BufferedReader in=null;
  PrintStream out=null;
  //构造方法
  public SimpleServer(int port){
   System.out.println("服务器代理正在监听，端口："+port);
   try{
    serverSkt=new ServerSocket(port);
   }catch(IOException e){
    System.out.println("监听端口"+port+"失败！");
   }
   try{
    clientSkt=serverSkt.accept();
    
   }catch(IOException e){
    System.out.println("连接失败");
   }
   try{
    in=new BufferedReader(new InputStreamReader(clientSkt.getInputStream()));
    out=new PrintStream(clientSkt.getOutputStream());
    
   }catch(IOException e){
   
   }
  }
  //收到客户端请求
  public String getRequest(){
   String frmClt=null;
   try{
    frmClt=in.readLine();
    System.out.println("Server收到请求："+frmClt);
   }catch(Exception e){
    System.out.println("无法读取端口.......");
       System.exit(0);
   }
   return frmClt;
  }
  //发送响应给客户端
  public void sendResponse(String response){
   try{
   out.println(response);
   out.println();
   System.out.println("Server响应请求 ："+response);
   }catch(Exception ex){
    System.out.println("写端口失败！。。。");
    System.exit(0);
   }
  }
  public static void main(String args[]) throws IOException{
   SimpleServer sa=new SimpleServer(8888);
   while(true){
    sa.sendResponse(sa.getRequest());
   }
  }
}