我在将来自客户端的传入信息写入此程序时遇到问题。数据进入并且System.out每秒都有输出，但FileWriter只打印程序启动时的第一行输出。我手动停止程序，然后检查文件。我不确定什么是错的，请帮忙。

import javax.swing.*;

import java.awt.event.KeyEvent;

import java.net.*;

import java.io.*;

import java.sql.SQLException;

import java.time.LocalDate;

import java.time.LocalDateTime;

import java.time.LocalTime;

public class Server {

public static void main(String[] args) throws IOException, SQLException, ClassNotFoundException {

String msg_received;

FileWriter fw = new FileWriter("HeartData.txt", true);

BufferedWriter bw = new BufferedWriter(fw);

PrintWriter out = new PrintWriter(bw);

System.out.println("Waiting for Android client to connect...");

while (true)

{

try

{

ServerSocket server = new ServerSocket(2323);

Socket s = server.accept();

server.close();

InetAddress clientAddress = s.getInetAddress();

System.out.println("Incoming connection from: " + clientAddress.getHostName() + "[" + clientAddress.getHostAddress() + "]");

DataInputStream DIS = new DataInputStream(s.getInputStream());

msg_received = DIS.readUTF();

out.println(msg_received + "," + LocalTime.now() + "," + LocalDate.now());

System.out.printf("Android says: %sat %s%n", msg_received, LocalTime.now());

}

catch (IOException e){e.printStackTrace();}

finally {

out.close();

}

}

}

}

示例输出：

等待Android客户端连接...

来自：hostname.domain [ipaddress]的传入连接

Android说：SOMETHING

在10：51：06.013

的