JAVA Socket：文件传输

客户端：读取文件（FileInputStream），发送文件（OutputStream）

服务器端：接收文件（InputStream），写文件（FileOutputStream）

客户端代码：

package socketCopyFile;
import java.net.*;
import java.io.*;
public class SocketCopyFileC {

    public static void main(String[] args) {
        try {
            Socket s = new Socket("127.0.0.1", 8888);
            System.out.println("getPort:" + s.getPort() + " getLocalPort:" + s.getLocalPort());
            OutputStream ops = s.getOutputStream();
            FileInputStream fis = new FileInputStream("C:/ice.jpg");
            byte[] b = new byte[1024];

            @SuppressWarnings("unused")
            int nLength = -1;
            while ((nLength = fis.read(b)) > 0){
                ops.write(b,0,nLength);
            }

            fis.close();
            ops.close();
            s.close();
        } catch (UnknownHostException e) {

            e.printStackTrace();
        } catch (IOException e) {

            e.printStackTrace();
        }finally{
            System.out.println("客户端Over");
        }

    }

}

服务器端代码：

package socketCopyFile;

import java.net.*;
import java.io.*;

public class SocketCopyFileS {

    public static void main(String[] args) {
        try {
            ServerSocket sSocket = new ServerSocket(8888);
            Socket s = sSocket.accept();
            System.out.println("getPort:" + s.getPort() + " getLocalPort:" + s.getLocalPort());
            InputStream ips = s.getInputStream();
            FileOutputStream fos = new FileOutputStream("D:\\ice.jpg");

            byte[] b = new byte[1024];
            int nLen = -1;
            while(true){
                nLen = ips.read(b);

                if (nLen == -1){
                    break;
                }
                fos.write(b, 0 , nLen);
            }

            fos.close();
            ips.close();

            s.close();
            sSocket.close();

        } catch (Exception e) {

        }finally{
            System.out.println("服务器端，OVER");
        }
    }
}