socket学习笔记四：简单的demo

package test;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;

public class ServerCode {

	public static int portNo=5555;
	
	public static void main(String[] args) {
		
		Socket socket=null;
		ServerSocket serverSocket=null;
		try {
			serverSocket=new ServerSocket(portNo);
			socket=serverSocket.accept();
			System.out.println("Accept the Client:"+socket.toString());
			
			BufferedReader in=new BufferedReader(new InputStreamReader(socket.getInputStream()));
			PrintWriter out=new PrintWriter(new BufferedWriter(new OutputStreamWriter(socket.getOutputStream())),true);
			
//			PrintWriter out=new PrintWriter(socket.getOutputStream(),true);
			while(true){
				String str=in.readLine();
				if("byby".equals(str)){
					break;
				}
				System.out.println("In Server reveived the info :"+str);
				out.println(str);
			}
			
		} catch (IOException e) {
			e.printStackTrace();
		}finally{
			try {
				socket.close();
			} catch (IOException e) {
				e.printStackTrace();
			}
			
		}
		
	}

}

 

package test;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.net.InetAddress;
import java.net.Socket;
import java.net.UnknownHostException;

public class ClientCode {

	static String clientName="Mike";
	public static int portNo=5555;
	
	public static void main(String[] args) {
		Socket socket=null;
		try {
			InetAddress addr=InetAddress.getByName("localhost");
			try {
				socket=new Socket(addr,5555);
				
				PrintWriter pw=new PrintWriter(new BufferedWriter(new OutputStreamWriter(socket.getOutputStream())),true);
//				PrintWriter pw=new PrintWriter(socket.getOutputStream(),true);
				pw.println("Hello Server,I am "+clientName);
				
				BufferedReader in=new BufferedReader(new InputStreamReader(socket.getInputStream()));
				String strLine=in.readLine();
				System.out.println(strLine);
				
				pw.println("byby");
			} catch (IOException e) {
				e.printStackTrace();
			}
			
		} catch (UnknownHostException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally{
			try {
				socket.close();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
		
	}

}

  这两行代码主要是性能上有差别。

PrintWriter out=new PrintWriter(new BufferedWriter(new OutputStreamWriter(socket.getOutputStream())),true);
			
PrintWriter out=new PrintWriter(socket.getOutputStream(),true);