我正在創建將文件傳輸到客戶端的文件傳輸程序。但是當我傳輸文件時，它丟失了每一行的第一個字母。我的代碼有什么問題？我是 java 的新手，所以我不知道下一步該做什么。我試過更改字節大小但沒有幫助。我應該怎么辦？Server.javaimport java.io.*;import java.net.ServerSocket;import java.net.Socket;import java.util.Scanner;class Server { public static void main(String[] args) throws IOException { FileInputStream fis = null; BufferedInputStream bis = null; OutputSteam os = null; ServerSocket serverSocket = null; Scanner scan = new Scanner(System.in); String fileSend; System.out.print("Type the path to the file to send >> "); fileSend = scan.nextLine(); try { serverSocket = new ServerSocket(5467); } catch (Exception e) { System.out.println("Could not bind to port 5467, Maybe address is already is use or you need to run as administrator"); return; } System.out.println("Listening on port 5467"); System.out.println("Waiting for the connection..."); while (true) { File FileSend = null; Socket socket = serverSocket.accept(); OutputStream out = socket.getOutputStream(); System.out.println("Accepted connection : " + socket); InputStream in = socket.getInputStream(); DataInputStream dataIn = new DataInputStream(in); String login = dataIn.readUTF(); String password = dataIn.readUTF(); String result = "You credential is "; if (login.equals("1c18b5cdef8f9b4c5d6b2ad087265e597d1d4639337b73a04a335103c00ec64b") && password.equals("1c18b5cdef8f9b4c5d6b2ad087265e597d1d4639337b73a04a335103c00ec64b13d0b73358bfa8978dfaaf180565bcfecd3dc0631cda525920865145fb3fa131")) { result += "correct"; } else { result += "incorrect"; } } }
2 回答
郎朗坤
TA貢獻1921條經驗 獲得超9個贊
文件是可序列化的，所以我建議您應該嘗試直接通過 ObjectOutputStream / ObjectInputStream 發送它。
例如在服務器端：
ObjectInputStream in = new ObjectInputStream(socket.getInputStream());
ObjectOutputStream out = new ObjectOutputStream(socket.getOutputStream());
...
out.writeObject(yourFileObject);
在客戶端：
ObjectInputStream in = new ObjectInputStream(socket.getInputStream());
ObjectOutputStream out = new ObjectOutputStream(socket.getOutputStream());
...
File receivedFile = null;
try {
receivedFile = (File) in.readObject();
}
catch (IOException e) {
...
}
眼眸繁星
TA貢獻1873條經驗 獲得超9個贊
我不完全確定為什么會發生這種情況，但您不應該使用DataInputStreamwhich “讓應用程序讀取原始 Java 數據類型”，而InputStreamReaderwhich “是從字節流到字符流的橋梁”。
此外，您可以將該閱讀器包裝成一個BufferedReader讓您逐行閱讀的內容，您最終會得到類似
try (BufferedReader reader=new BufferedReader(new InputStreamReader(inStream, UTF8));
? ? ?PrintWriter writer = new PrintWriter(file)) {
? ? reader.lines().forEach(writer::println);
}
上傳，或
try (PrintWriter writer = new PrintWriter(outStream)) {
? ? Files.lines().forEach(writer::println);
}
下載。
添加回答
舉報
0/150
提交
取消