java socket传送文件
发布网友
发布时间：2022-04-22 20:21
共2个回答
热心网友
时间：2022-05-02 09:18
客户端代码如下：
import java.io.DataOutputStream;import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.Socket;
/**
* 文件发送客户端主程序
* @author admin_Hzw
*
*/
public class BxClient {
/**
* 程序main方法
* @param args
* @throws IOException
*/
public static void main(String[] args) throws IOException {
int length = 0;
double sumL = 0 ;
byte[] sendBytes = null;
Socket socket = null;
DataOutputStream dos = null;
FileInputStream fis = null;
boolean bool = false;
try {
File file = new File("D:/天啊.zip"); //要传输的文件路径
long l = file.length();
socket = new Socket();
socket.connect(new InetSocketAddress("127.0.0.1", 48123));
dos = new DataOutputStream(socket.getOutputStream());
fis = new FileInputStream(file);
sendBytes = new byte[1024];
while ((length = fis.read(sendBytes, 0, sendBytes.length)) > 0) {
sumL += length;
System.out.println("已传输："+((sumL/l)*100)+"%");
dos.write(sendBytes, 0, length);
dos.flush();
}
//虽然数据类型不同，但JAVA会自动转换成相同数据类型后在做比较
if(sumL==l){
bool = true;
}
}catch (Exception e) {
System.out.println("客户端文件传输异常");
bool = false;
e.printStackTrace();
} finally{
if (dos != null)
dos.close();
if (fis != null)
fis.close();
if (socket != null)
socket.close();
}
System.out.println(bool?"成功":"失败");
}
}
服务端代码如下：
import java.io.DataInputStream;import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.Random;
import com.boxun.util.GetDate;
/**
* 接收文件服务
* @author admin_Hzw
*
*/
public class BxServerSocket {
/**
* 工程main方法
* @param args
*/
public static void main(String[] args) {
try {
final ServerSocket server = new ServerSocket(48123);
Thread th = new Thread(new Runnable() {
public void run() {
while (true) {
try {
System.out.println("开始监听...");
/*
* 如果没有访问它会自动等待
*/
Socket socket = server.accept();
System.out.println("有链接");
receiveFile(socket);
} catch (Exception e) {
System.out.println("服务器异常");
e.printStackTrace();
}
}
}
});
th.run(); //启动线程运行
} catch (Exception e) {
e.printStackTrace();
}
}
public void run() {
}
/**
* 接收文件方法
* @param socket
* @throws IOException
*/
public static void receiveFile(Socket socket) throws IOException {
byte[] inputByte = null;
int length = 0;
DataInputStream dis = null;
FileOutputStream fos = null;
String filePath = "D:/temp/"+GetDate.getDate()+"SJ"+new Random().nextInt(10000)+".zip";
try {
try {
dis = new DataInputStream(socket.getInputStream());
File f = new File("D:/temp");
if(!f.exists()){
f.mkdir();
}
/*
* 文件存储位置
*/
fos = new FileOutputStream(new File(filePath));
inputByte = new byte[1024];
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："+filePath);
} finally {
if (fos != null)
fos.close();
if (dis != null)
dis.close();
if (socket != null)
socket.close();
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
热心网友
时间：2022-05-02 10:36
哈哈，这个我会啊！！！
给你个！ 给我分吧！！！
//客户端
package socket;
import java.net.*;
import java.io.*;
/**
* SocketServer从SocketClient接受文件名，将文件发送到SocketServer端保存！
*
*
*/
public class SocketClient {
private static File f = null;
private static FileInputStream fr = null;
private static DataOutputStream dout = null;
private static Socket s = null;
public static void main(String[] args) {
SocketClient sc = new SocketClient();
sc.connectSocketServer(1234);
sc.sendFile("li.txt");
}
/**
* 连接服务器端
*
* @param port
* 要连接的服务器SocketServer端口
*/
public void connectSocketServer(int port) {
try {
s = new Socket(InetAddress.getLocalHost(), port);
} catch (UnknownHostException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
// 发送文件
public void sendFile(String str) {
byte[] b = new byte[1024];
f = new File(str);
try {
//数据输出流
dout = new DataOutputStream(new BufferedOutputStream(s
.getOutputStream()));
//文件读入流
fr = new FileInputStream(f);
int n = fr.read(b);
while (n != -1) {
//向网络中写入数据
dout.write(b, 0, n);
dout.flush();
//再次读取n字节
n = fr.read(b);
}
//关闭流
fr.close();
dout.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}
//服务器端
package socket;
import java.net.*;
import java.io.*;
/**
* Socketserver从客户端读取文件并保存为本地文件！
*
*
*/
public class Socketserver {
private static ServerSocket ss = null;
private static Socket s = null;
private static File f = null;
private static RandomAccessFile fw = null;
public static void main(String[] args) {
Socketserver sk = new Socketserver();
sk.initServer(1234);
sk.getFile();
}
/**
* 初始化服务器端
* @param port
* 服务器端要使用的端口
*/
public void initServer(int port){
try {
ss = new ServerSocket(port);
s = ss.accept();
} catch (IOException e) {
e.printStackTrace();
}
}
// 从SocketClient读取文件
public void getFile() {
byte[] b = new byte[1024];
try {
//定义输入流，s.getInputStream();
InputStream in = s.getInputStream();
DataInputStream din = new DataInputStream(new BufferedInputStream(
in));
//创建要保存的文件
f = new File("copy.txt");
fw = new RandomAccessFile(f, "rw");
int num = din.read(b);
while (num != -1) {
//向文件中写入0~num个字节
fw.write(b, 0, num);
//跳过num个字节再次写入文件
fw.skipBytes(num);
//读取num个字节
num = din.read(b);
}
//关闭输入，输出流
din.close();
fw.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
