Java通过套接字传输多个文件
好的,尝试通过套接字传输指定的文件目录,从arraylist中删除目录对象,因此只剩下文件,并在同一个套接字上逐个传输它们。这里的arraylist充满了ONLY文件,没有目录。继承人分别为客户端和服务器接收和发送代码。除了将所有数据写入第一个文件之外,代码运行正常且没有错误。后续文件在服务器文件夹中创建,但它们是0字节。任何投入将不胜感激。
这是收到文件的服务器代码
public void receive(){ try { DataInputStream dis = new DataInputStream(new BufferedInputStream(socket.getInputStream())); DataOutputStream dos = new DataOutputStream(new BufferedOutputStream(socket.getOutputStream()));//read the number of files from the client int number = dis.readInt(); ArrayList<File>files = new ArrayList<File>(number); System.out.println("Number of Files to be received: " +number); //read file names, add files to arraylist for(int i = 0; i< number;i++){ File file = new File(dis.readUTF()); files.add(file); } int n = 0; byte[]buf = new byte[4092]; //outer loop, executes one for each file for(int i = 0; i < files.size();i++){ System.out.println("Receiving file: " + files.get(i).getName()); //create a new fileoutputstream for each new file FileOutputStream fos = new FileOutputStream("C:\\users\\tom5\\desktop\\salestools\\" +files.get(i).getName()); //read file while((n = dis.read(buf)) != -1){ fos.write(buf,0,n); fos.flush(); } fos.close(); } } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }}
这是发送文件的客户端代码
public void send(ArrayList<File>files){ try { DataInputStream dis = new DataInputStream(new BufferedInputStream(socket.getInputStream())); DataOutputStream dos = new DataOutputStream(new BufferedOutputStream(socket.getOutputStream())); System.out.println(files.size());//write the number of files to the server dos.writeInt(files.size()); dos.flush();
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