Java socket字节流传输的示例
服务端server端:
package com.yuan.socket; import java.io.*; import java.net.ServerSocket; import java.net.Socket; /** * Created by YUAN on 2016-09-17. */ public class TalkServer4Byte { private ServerSocket server; private int port = 5020; public TalkServer4Byte() { try { server = new ServerSocket(port); } catch (IOException e) { } } public void talk() { System.out.println("监控端口:" + port); Socket socket = null; while (true) { try { // 阻塞等待,每接收到一个请求就创建一个新的连接实例 socket = server.accept(); System.out.println("连接客户端地址:" + socket.getRemoteSocketAddress()); // 装饰流BufferedReader封装输入流(接收客户端的流) BufferedInputStream bis = new BufferedInputStream( socket.getInputStream()); DataInputStream dis = new DataInputStream(bis); byte[] bytes = new byte[1]; // 一次读取一个byte String ret = ""; while (dis.read(bytes) != -1) { ret += bytesToHexString(bytes) + " "; if (dis.available() == 0) { //一个请求 doSomething(ret); } } } catch (IOException e) { System.out.println(e.getMessage()); } finally { try { socket.close(); } catch (IOException e) { System.out.println(e.getMessage()); } } } } public static void doSomething(String ret) { System.out.println(ret); } public static String bytesToHexString(byte[] src) { StringBuilder stringBuilder = new StringBuilder(""); if (src == null || src.length <= 0) { return null; } for (int i = 0; i < src.length; i++) { int v = src[i] & 0xFF; String hv = Integer.toHexString(v); if (hv.length() < 2) { stringBuilder.append(0); } stringBuilder.append(hv); } return stringBuilder.toString(); } public static String BytesHexString(byte[] b) { String ret = ""; for (int i = 0; i < b.length; i++) { String hex = Integer.toHexString(b[i] & 0xFF); if (hex.length() == 1) { hex = '0' + hex; } ret += hex.toUpperCase(); } return ret; } public static void main(String[] args) { TalkServer4Byte server = new TalkServer4Byte(); server.talk(); } }
客户端client代码:
package com.yuan.socket; import java.io.DataInputStream; import java.io.DataOutputStream; import java.io.IOException; import java.io.InputStream; import java.net.InetSocketAddress; import java.net.Socket; import java.net.SocketAddress; /** * Created by YUAN on 2016-09-17. */ public class TalkClient4Byte { private Socket socket; private SocketAddress address; public TalkClient4Byte() { try { socket = new Socket(); address = new InetSocketAddress("127.0.0.1", 5020); socket.connect(address, 1000); } catch (IOException e) { e.printStackTrace(); } } public void talk() { try { //使用DataInputStream封装输入流 InputStream os = new DataInputStream(System.in); byte [] b = new byte[1]; DataOutputStream dos = new DataOutputStream(socket.getOutputStream()); while (-1 != os.read(b)) { dos.write(b); // 发送给客户端 } dos.flush(); dos.close(); } catch (IOException e) { e.printStackTrace(); } finally { try { socket.close(); } catch (IOException e) { } } } public static void main(String[] args) { TalkClient4Byte client = new TalkClient4Byte(); client.talk(); } }