Java 按行读取文件按行写入文件并以空格分割字符串的方法

import java.io.BufferedReader;import java.io.File;import java.io.FileReader;public class TxtChange { public static void main(String[] args){   File file=new File("E://oldData.txt");   BufferedReader reader=null;   String temp=null;   int line=1;   try{     reader=new BufferedReader(new FileReader(file));     while((temp=reader.readLine())!=null){      // System.out.println("第"+line+"行:"+temp);     String string=AnalyzeStr.getAnalyze().getNewString(temp);//调用分割方法     System.out.println(string);     AnalyzeStr.getAnalyze().saveRecordInFile(string);//调用按行存储字符串     line++;     }   }   catch(Exception e){    e.printStackTrace();   }   finally{    if(reader!=null){     try{      reader.close();     }     catch(Exception e){      e.printStackTrace();     }    }   }  } }

public String getNewString(String fileName){  String str1="";  String str2="";  String str3="";  String []arrayStr=fileName.split("//s+");  str1="/n/t/t"+arrayStr[0];  str2="/t"+arrayStr[1];  str3="/t"+arrayStr[2];  return str1+str2+str3; }

//追加记录 public void saveRecordInFile(String str) {  File record = new File(path);//记录结果文件  try {   if (!record.exists()) {    File dir = new File(record.getParent());    dir.mkdirs();    record.createNewFile();   }   FileWriter writer = null;   try {    // 打开一个写文件器，构造函数中的第二个参数true表示以追加形式写文件    writer = new FileWriter(record, true);    writer.write(str);   } catch (IOException e) {    e.printStackTrace();   } finally {    try {     if (writer != null) {      writer.close();     }    } catch (IOException e) {     e.printStackTrace();    }   }  } catch (Exception e) {   System.out.println("记录保存失败");  } }