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public static void saveFileItemsToTxt(Map
   
     map) {
           //对map进行排序        //转换为list        List
    
     
      > list = new ArrayList
      
       
        >(map.entrySet());        Collections.sort(list, new Comparator
        
         
          >() { @Override public int compare(Map.Entry
          
            o1, Map.Entry
           
             o2) { return o2.getValue().compareTo(o1.getValue()); } }); System.out.println(list); OutputStreamWriter outFile = null; FileOutputStream fileOutputStream; String strItems = null; try { fileOutputStream = new FileOutputStream(outputPath); outFile = new OutputStreamWriter(fileOutputStream); for (int i = 0; i < list.size(); i++) { strItems = list.get(i).getKey() + "：" + list.get(i).getValue()+"\r\n"; System.out.println(strItems); outFile.write(strItems); } } catch (FileNotFoundException fileNotFoundException) { fileNotFoundException.printStackTrace(); } catch (IOException ioException) { ioException.printStackTrace(); } finally { try { outFile.flush(); outFile.close(); } catch (IOException e) { e.printStackTrace(); } } } public static String readTxt(String filePath) { String context = ""; try { File file = new File(filePath); if (file.isFile() && file.exists()) { InputStreamReader isr = new InputStreamReader(new FileInputStream(file), "utf-8"); BufferedReader br = new BufferedReader(isr); String lineTxt; while ((lineTxt = br.readLine()) != null) { System.out.println(lineTxt); context += lineTxt; } br.close(); } else { System.out.println("文件不存在!"); } } catch (Exception e) { System.out.println("文件读取错误!"); } return context; } ```
           
          
         
        
       
      
     
    
   

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