使用socket模拟服务端与客户端传输文件

package netFile;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.Closeable;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.net.Socket;

public class SocketTask {
	//客户端发送文件
	public static void main(String[] args) {
		Socket socket = null;
		BufferedInputStream bis = null;
		BufferedOutputStream bos= null;
		try {
			socket = new Socket("127.0.0.1", 10086);
			bis = new BufferedInputStream(new FileInputStream("f:"+File.separator+"2.jpg"));
			bos = new BufferedOutputStream(socket.getOutputStream());
			
			byte [] buffer = new byte[1024];
			int len = 0;
			while((len = bis.read(buffer)) != -1){
				bos.write(buffer, 0, len);
				bos.flush();
			}
			socket.shutdownOutput();
		System.out.println("客户端发送完成 ！");
		
		BufferedInputStream is = new BufferedInputStream(socket.getInputStream());
			is.read();
			
		} catch (IOException e) {
			e.printStackTrace();
		}finally{
			close(bis);
			close(bos);			
		}
	}

private static void close(Closeable close){
	if(close != null){
	try {
		close.close(); 
	} catch (IOException e) {
		e.printStackTrace();
	}
	}
}
}

　　

package netFile;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.BufferedWriter;
import java.io.Closeable;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.net.ServerSocket;
import java.net.Socket;

public class SeverSocketTask {
	//服务端，接收文件
	public static void main(String[] args) {
		
	ServerSocket sc = null;
	BufferedInputStream bis = null; 
	BufferedOutputStream bos = null;
	try {
		sc = new ServerSocket(10086);
		Socket socket = sc.accept();
		bis = new BufferedInputStream(socket.getInputStream());
		bos = new BufferedOutputStream(new FileOutputStream("e:"+File.separator+"aa.jpg"));
		
		byte [] buffer = new byte[1024];
		int len = 0;
		while((len = bis.read(buffer)) != -1){
			bos.write(buffer, 0, len);
			bos.flush();
		}
		
		BufferedWriter writer = new 
				BufferedWriter(new OutputStreamWriter(socket.getOutputStream()));
		writer.write("服务端已收到消息！"); 
		writer.flush();
		socket.shutdownOutput();
	} catch (IOException e) {
		e.printStackTrace();
	}finally{			
		close(bos);
	}
}
private static void close(Closeable close) {
	if(close != null){
	try {
		close.close();
	} catch (IOException e) {
		e.printStackTrace();
	}
	}
}
}