读取txt文件并且写入到txt文件中

问题遇到的现象和发生背景

可以输出我想要的格式

img


但是写入txt文件却变成

img

用代码块功能插入代码，请勿粘贴截图

package com.libovito;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;

/**

  • @author:lilun

  • @create: 2022-11-01 13:30

  • /
    public class txt2String {

    public static String[] sit = {"02","05"};

    public static String[] headStrings = {"HBS001","HBS002"，..};

    public static void txtString(String site,String nowDate,String headString) {

       String readPath = "C:\\Users\\libovito2018\\Desktop\\output_RMSE"+site+"\\"+nowDate+"\\ovlfc_pm10_"+nowDate+".txt";
   
   String writePath = "C:\\Users\\libovito2018\\Desktop\\output\\"+nowDate+".txt";
   
   
   
  
  try (
          FileReader reader = new FileReader(String.valueOf(readPath));
          BufferedReader br = new BufferedReader(reader);
 
  ) {
      String line;
      ArrayList<String> writeLit =  new ArrayList<String>();
      while ((line = br.readLine()) != null) {
          //System.out.println(line);
          String[] content = line.split("\\s+");
          
          
          //读取数据
          
          if (headString.equals(content[0])) {
              
              
              
              writeLit.add(content[0]+"   "+content[1]+"   "+site+"   "+content[3]);
              
              System.out.println(writeLit);
          

              
          }
          
          
      }
          

        //将代码写入txt文件
          BufferedWriter writer = new BufferedWriter(new FileWriter(writePath,true));
          
          
          StringBuffer sf = new StringBuffer();
          //集合
          for (String s:writeLit) {
              //System.out.println(writeLit.get(i));
              sf.append(s);
              sf.append("\n");
          }
          
          writer.write(sf.toString());
          writer.flush();//将缓存区内容压入文件
          writer.close();
                 
          
          
      
      
      

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

}

public static void main(String[] args) {
    
    String nowDate = "20221002";
    
    for (int j = 0; j < headStrings.length; j++) {
        for (int i = 0; i < sit.length; i++) {
            txtString(sit[i],nowDate,headStrings[j]);
       }
    }
        
    
}

}

我想要达到的结果

img