服务器显示错误的数据[关闭]

Question

我正在编写客户端和服务器，问题是何时向服务器发送整数，我希望服务器显示它们我得到的数字不是我发送的数字，请注意其他字符串工作正常

你知道为什么会这样吗？

提前非常感谢！ 客户

   Socket socket = new Socket("localhost",3333);

    OutputStreamWriter Output= new OutputStreamWriter(socket.getOutputStream());
    PrintWriter sender= new PrintWriter(Output);
    //creating the hotel by sending to the server the number of rooms
    System.out.println("please enter the number of the rooms");
    String roomsOfTheHotel=scanner.nextLine();
    sender.println(roomsOfTheHotel);
    //providing the information that needed to create a person class
    System.out.println("Enter the first name");
    String fname= scanner.nextLine();
    sender.println(fname);

    System.out.println("Enter the last name");
    String lname= scanner.nextLine();
    sender.println(lname);

    System.out.println("Enter the age");
    String  age= scanner.nextLine();
    sender.println(age);

    System.out.println("Enter the number of days");
    String  numberOfDays= scanner.nextLine();
    sender.println(numberOfDays);

    System.out.println("Enter the roomNumber");
    String roomNumber= scanner.nextLine();
    sender.println(roomNumber);

    Output.flush();

服务器 ServerSocket serverSocket=new ServerSocket(3333);

    DateFormat dateFormat = new SimpleDateFormat("yyyy/MM/dd");
    Date date = new Date();
    String todaysDate= dateFormat.format(date);

    System.out.println("System is waiting");

    Socket serverSideSocket= serverSocket.accept();


    InputStreamReader input=new  InputStreamReader(serverSideSocket.getInputStream());
    BufferedReader reader= new BufferedReader(input);
  int roomOfTheHotel= Integer.parseInt(String.valueOf(reader.read()));
    System.out.println(roomOfTheHotel);
    Hotel1 hotel = new Hotel1(roomOfTheHotel);

    String fname= reader.readLine();
    System.out.println(fname);

    String lname= reader.readLine();
    System.out.println(lname);

    int age = Integer.parseInt(String.valueOf(reader.read()));
    System.out.println(age);


    int numberOfDays = Integer.parseInt(String.valueOf(reader.read()));
    System.out.println(numberOfDays);

    int roomNumber = Integer.parseInt(String.valueOf(reader.read()));
    System.out.println(roomNumber);

示例

输入 输入年龄

27

输入天数

4

输入房间号

3

输出

97

115

115

Answer 1

BufferedReader.read() 返回单个字符（作为 int）

要将其转换为正确的字母，请使用(char)reader.read()，然后可以将其放入字符串/读取到 int - 当前如果读取器读取“5”，it will give you the number value of it (53)，然后将其转换为字符串("53")，并将其解析为 int（再次为 53）

使用BufferedReader.readLine()（返回一个字符串）来获取完整的输入行并相应地解析它可能更有用

---

int roomOfTheHotel= Integer.parseInt(String.valueOf(reader.read()));

应该是以下之一：

int roomOfTheHotel = Integer.parseInt(reader.readLine());

int roomOfTheHotel = Integer.parseInt("" + ((char)reader.read()));

int roomOfTheHotel = reader.read() - '0';