Java Socket图片文件传输

java socket通信-传输文件图片

ClientTcpSend.java 客户端发送类

package com.yjf.test;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.net.InetSocketAddress;
import java.net.Socket;

public class ClientTcpSend {
    
    public static String clientip = "127.0.0.1";
    public static int port = 33456;

    public static void main(String[] args) {
        int length = 0;
        byte[] sendBytes = null;
        Socket socket = null;
        DataOutputStream dos = null;
        FileInputStream fis = null;
        try {
            try {
                socket = new Socket();
                socket.connect(new InetSocketAddress(clientip, port),30 * 1000);
                dos = new DataOutputStream(socket.getOutputStream());
                File file = new File("F:\\aa.xml");
                fis = new FileInputStream(file);
                sendBytes = new byte[1024*4];
                while ((length = fis.read(sendBytes, 0, sendBytes.length)) > 0) {
                    dos.write(sendBytes, 0, length);
                    dos.flush();
                }
            } finally {
                if (dos != null)
                    dos.close();
                if (fis != null)
                    fis.close();
                if (socket != null)
                    socket.close();
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

ServerTcpListener.java 服务器监听类

package com.yjf.test;
import java.net.*;
import java.io.*;

public class ServerTcpListener implements Runnable {

    public static void main(String[] args) {

        try {
            final ServerSocket server = new ServerSocket(ClientTcpSend.port);
            Thread th = new Thread(new Runnable() {
                public void run() {
                    while (true) {
                        try {
                            System.out.println("开始监听...");
                            Socket socket = server.accept();
                            System.out.println("有链接");
                            receiveFile(socket);
                        } catch (Exception e) {
                        }
                    }
                }

            });

            th.run(); //启动线程运行
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public void run() {
    }

    public static void receiveFile(Socket socket) {

        byte[] inputByte = null;
        int length = 0;
        DataInputStream dis = null;
        FileOutputStream fos = null;
        try {
            try {

                dis = new DataInputStream(socket.getInputStream());
                fos = new FileOutputStream(new File("E:\\aa.xml"));
                inputByte = new byte[1024*4];
                System.out.println("开始接收数据...");
                while ((length = dis.read(inputByte, 0, inputByte.length)) > 0) {
                    fos.write(inputByte, 0, length);
                    fos.flush();
                }
                System.out.println("完成接收");
            } finally {
                if (fos != null)
                    fos.close();
                if (dis != null)
                    dis.close();
                if (socket != null)
                    socket.close();
            }
        } catch (Exception e) {

        }
    }
}