使用socket实现文件复制

网络编程之文件长传下载：

客户端：uploadClient.java:

package fileupload;
import java.awt.image.BufferedImageFilter;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.FileInputStream;
import java.io.IOException;
import java.net.InetAddress;
import java.net.Socket;
import java.net.UnknownHostException;

/**
 * 
 * @author superdrew
 *
 */
public class UploadClient {
    public static void main(String[] args) throws UnknownHostException, IOException {
        //1.创建socket 与 server进行连接
        Socket socket = new Socket(InetAddress.getLocalHost(), 8888);
        
        //2.读取本地文件
        BufferedInputStream bis = new BufferedInputStream(new FileInputStream("C:/JDK_API_1_6_zh_CN.CHM"));

        //3.写入到网络中
        BufferedOutputStream bos = new BufferedOutputStream(socket.getOutputStream());
        
        //读取并写入到网络  中转站
        byte [] buf = new byte [1024];
        int len = 0;
        while( ( len = bis.read(buf))!=-1 ){
            //往网络中写
            bos.write(buf,0,len);
            //再次读取文件
            //len = bis.read(buf);
        }
        
        //4.关闭资源
        bos.close();
        bis.close();
    }
}

服务端：UploadServer.java:

package fileupload;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.ServerSocket;
import java.net.Socket;

/**
 * 使用socket完成文件复制
 *     使用 tcp 
 *  udp 没有相关的IO流操作
 * 之间讲的文件复制   单机  只能本地到本地
 * 
 * @author superdrew
 *
 */
public class UploadServer {
    public static void main(String[] args) throws IOException {
        //1.创建server 
        ServerSocket server = new ServerSocket(8888);
        
        //2.监听
        Socket socket = server.accept();
        
        //3.通过socket读取网络文件
        /*InputStream in = socket.getInputStream();
        BufferedInputStream bis = new BufferedInputStream(in);*/
        BufferedInputStream bis = new BufferedInputStream(socket.getInputStream());
        //4.写入到本地文件
        BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream("C:/JDK_API_1_6_zh_CN2.CHM"));
        
        //5.边读边写
        //读取的中转站
        byte [] buf = new byte [1024];
        int len = 0;
        //len = bis.read(buf);
        while((len = bis.read(buf))!=-1){//组合式写法
            //写入到文件
            bos.write(buf, 0, len);
            //再次读取
            //len = bis.read(buf);
        }
        //关闭流
        bos.close();
        bis.close();
    }
}