Java学习笔记——Socket实现文件传输

我越是逃离,却越是靠近你。

我越是背过脸，却越是看见你。

我从你开始，

我在你结束。

需求：实现局域网下socket传输文件.

客户端步骤：

1、建立与服务器的连接

2、创建client输出流

3、创建输入流，绑定本地文件

4、读取文件后输出给服务器

服务器端步骤：

1、启动服务器

2、创建accept输入流

3、创建输出流绑定本地文件

4、读取客户端信息写入本地文件

1.字节流传输文件.

public class Client {

    public static void main(String[] args) throws IOException {
        Socket client = new Socket("192.168.0.112", 50000);
        OutputStream os = client.getOutputStream();
        FileInputStream fis = new FileInputStream("/home/yanshaochen/public/2017-05-06 15-12-02屏幕截图.png");
        byte[] bytes = new byte[1024];
        int data;
        while((data = fis.read(bytes))!= -1){
            os.write(bytes, 0, data);
        }
        fis.close();
        client.close();
        System.out.println("发送成功!");
    }
}

public class Server {

    public static void main(String[] args) throws Exception {
        ServerSocket server = new ServerSocket(50000);
        System.out.println("listening..");
        Socket accept = server.accept();
        InputStream is = accept.getInputStream();
        FileOutputStream fos = new FileOutputStream("d:\download\屏幕截图.png");
        byte[] bytes = new byte[1024];
        int data;
        while((data = is.read(bytes))!=-1){
            fos.write(bytes, 0, data);
        }
        fos.close();
        server.close();
}

2.字符流传输文件txt.

public class Client {

    public static void main(String[] args) throws IOException {
        
        Socket client = new Socket("192.168.0.112", 50000);
        OutputStream os = client.getOutputStream();
        Reader fr = new FileReader("/home/yanshaochen/public/zfsm.txt");
        BufferedReader br = new BufferedReader(fr);
        String buffer;
        while((buffer = br.readLine())!= null){
            buffer += "
";
            os.write(buffer.getBytes());
        }
        br.close();
        client.close();
        System.out.println("发送成功!");
    }
}

public class Server {

    public static void main(String[] args) throws Exception {

        ServerSocket server = new ServerSocket(50000);
        System.out.println("listening..");
        Socket accept = server.accept();
        InputStream is = accept.getInputStream();
        FileWriter fw = new FileWriter("d:\download\zfsm.txt");
        byte[] bytes = new byte[1024];
        int data;
        while((data = is.read(bytes)) != -1){
            fw.write(new String(bytes, 0, data));
        }
        fw.close();
        server.close();
    }

}