在Java中,可以通过Socket来传输大文件。以下是一个简单的例子来说明如何在Java中使用Socket传输大文件:
import java.io.*;
import java.net.ServerSocket;
import java.net.Socket;
public class Server {
public static void main(String[] args) throws IOException {
ServerSocket serverSocket = new ServerSocket(12345);
Socket socket = serverSocket.accept();
InputStream inputStream = socket.getInputStream();
FileOutputStream fileOutputStream = new FileOutputStream("received_file.txt");
byte[] buffer = new byte[1024];
int bytesRead;
while ((bytesRead = inputStream.read(buffer)) != -1) {
fileOutputStream.write(buffer, 0, bytesRead);
}
fileOutputStream.close();
inputStream.close();
socket.close();
serverSocket.close();
}
}
import java.io.*;
import java.net.Socket;
public class Client {
public static void main(String[] args) throws IOException {
Socket socket = new Socket("localhost", 12345);
File file = new File("large_file.txt");
FileInputStream fileInputStream = new FileInputStream(file);
OutputStream outputStream = socket.getOutputStream();
byte[] buffer = new byte[1024];
int bytesRead;
while ((bytesRead = fileInputStream.read(buffer)) != -1) {
outputStream.write(buffer, 0, bytesRead);
}
fileInputStream.close();
outputStream.close();
socket.close();
}
}
在上面的代码中,服务器端监听端口12345,客户端连接到服务器端的12345端口。客户端发送名为"large_file.txt"的大文件到服务器端,并且服务器端接收并保存为"received_file.txt"文件。
通过Socket传输大文件时,需要注意以下几点: